Merge pull request #140 from yanesca/everest_integration

Everest integration

3rdparty/.gitignore

@@ -0,0 +1 @@
+/Makefile

3rdparty/CMakeLists.txt

@@ -0,0 +1,11 @@
+list (APPEND thirdparty_src)
+list (APPEND thirdparty_lib)
+list (APPEND thirdparty_inc)
+list (APPEND thirdparty_def)
+
+add_subdirectory(everest)
+
+set(thirdparty_src ${thirdparty_src} PARENT_SCOPE)
+set(thirdparty_lib ${thirdparty_lib} PARENT_SCOPE)
+set(thirdparty_inc ${thirdparty_inc} PARENT_SCOPE)
+set(thirdparty_def ${thirdparty_def} PARENT_SCOPE)

3rdparty/Makefile.inc

@@ -0,0 +1,5 @@
+ifeq ($(INCLUDING_FROM_MBEDTLS), 1)
+include ../crypto/3rdparty/everest/Makefile.inc
+else
+include ../3rdparty/everest/Makefile.inc
+endif

3rdparty/everest/.gitignore

@@ -0,0 +1,2 @@
+*.o
+Makefile

3rdparty/everest/CMakeLists.txt

@@ -0,0 +1,31 @@
+list (APPEND everest_src)
+list (APPEND everest_inc)
+list (APPEND everest_def)
+
+set(everest_src
+  ${CMAKE_CURRENT_SOURCE_DIR}/library/everest.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/library/x25519.c
+  ${CMAKE_CURRENT_SOURCE_DIR}/library/Hacl_Curve25519_joined.c
+)
+
+list(APPEND everest_inc ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/include/everest ${CMAKE_CURRENT_SOURCE_DIR}/include/everest/kremlib)
+
+execute_process(COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/config.pl -f ${CMAKE_CURRENT_SOURCE_DIR}/../../include/mbedtls/config.h get MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED RESULT_VARIABLE result)
+
+if(${result} EQUAL 0)
+
+  if(INSTALL_MBEDTLS_HEADERS)
+
+    install(DIRECTORY include/everest
+      DESTINATION include
+      FILE_PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+      DIRECTORY_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+      FILES_MATCHING PATTERN "*.h")
+
+  endif(INSTALL_MBEDTLS_HEADERS)
+
+endif()
+
+set(thirdparty_src ${thirdparty_src} ${everest_src} PARENT_SCOPE)
+set(thirdparty_inc ${thirdparty_inc} ${everest_inc} PARENT_SCOPE)
+set(thirdparty_def ${thirdparty_def} ${everest_def} PARENT_SCOPE)

3rdparty/everest/Makefile.inc

@@ -0,0 +1,6 @@
+THIRDPARTY_INCLUDES+=-I../3rdparty/everest/include -I../3rdparty/everest/include/everest -I../3rdparty/everest/include/everest/kremlib
+
+THIRDPARTY_CRYPTO_OBJECTS+= \
+	../3rdparty/everest/library/everest.o \
+	../3rdparty/everest/library/x25519.o \
+	../3rdparty/everest/library/Hacl_Curve25519_joined.o

3rdparty/everest/README.md

@@ -0,0 +1,5 @@
+The files in this directory stem from [Project Everest](https://project-everest.github.io/) and are distributed under the Apache 2.0 license.
+
+This is a formally verified implementation of Curve25519-based handshakes. The C code is automatically derived from the (verified) [original implementation](https://github.com/project-everest/hacl-star/tree/master/code/curve25519) in the [F* language](https://github.com/fstarlang/fstar) by [KreMLin](https://github.com/fstarlang/kremlin). In addition to the improved safety and security of the implementation, it is also significantly faster than the default implementation of Curve25519 in mbedTLS.
+
+The caveat is that not all platforms are supported, although the version in `everest/library/legacy` should work on most systems. The main issue is that some platforms do not provide a 128-bit integer type and KreMLin therefore has to use additional (also verified) code to simulate them, resulting in less of a performance gain overall. Explictly supported platforms are currently `x86` and `x86_64` using gcc or clang, and Visual C (2010 and later).

3rdparty/everest/include/everest/Hacl_Curve25519.h

@@ -0,0 +1,21 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fbuiltin-uint128 -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+
+#ifndef __Hacl_Curve25519_H
+#define __Hacl_Curve25519_H
+
+
+#include "kremlib.h"
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint);
+
+#define __Hacl_Curve25519_H_DEFINED
+#endif

3rdparty/everest/include/everest/everest.h

@@ -0,0 +1,234 @@
+/*
+ *  Interface to code from Project Everest
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of Mbed TLS (https://tls.mbed.org).
+ */
+
+#ifndef MBEDTLS_EVEREST_H
+#define MBEDTLS_EVEREST_H
+
+#include "everest/x25519.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Defines the source of the imported EC key.
+ */
+typedef enum
+{
+    MBEDTLS_EVEREST_ECDH_OURS,   /**< Our key. */
+    MBEDTLS_EVEREST_ECDH_THEIRS, /**< The key of the peer. */
+} mbedtls_everest_ecdh_side;
+
+typedef struct {
+    mbedtls_x25519_context ctx;
+} mbedtls_ecdh_context_everest;
+
+
+/**
+ * \brief           This function sets up the ECDH context with the information
+ *                  given.
+ *
+ *                  This function should be called after mbedtls_ecdh_init() but
+ *                  before mbedtls_ecdh_make_params(). There is no need to call
+ *                  this function before mbedtls_ecdh_read_params().
+ *
+ *                  This is the first function used by a TLS server for ECDHE
+ *                  ciphersuites.
+ *
+ * \param ctx       The ECDH context to set up.
+ * \param grp_id    The group id of the group to set up the context for.
+ *
+ * \return          \c 0 on success.
+ */
+int mbedtls_everest_setup( mbedtls_ecdh_context_everest *ctx, int grp_id );
+
+/**
+ * \brief           This function frees a context.
+ *
+ * \param ctx       The context to free.
+ */
+void mbedtls_everest_free( mbedtls_ecdh_context_everest *ctx );
+
+/**
+ * \brief           This function generates a public key and a TLS
+ *                  ServerKeyExchange payload.
+ *
+ *                  This is the second function used by a TLS server for ECDHE
+ *                  ciphersuites. (It is called after mbedtls_ecdh_setup().)
+ *
+ * \note            This function assumes that the ECP group (grp) of the
+ *                  \p ctx context has already been properly set,
+ *                  for example, using mbedtls_ecp_group_load().
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context.
+ * \param olen      The number of characters written.
+ * \param buf       The destination buffer.
+ * \param blen      The length of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_everest_make_params( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng );
+
+/**
+ * \brief           This function parses and processes a TLS ServerKeyExhange
+ *                  payload.
+ *
+ *                  This is the first function used by a TLS client for ECDHE
+ *                  ciphersuites.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context.
+ * \param buf       The pointer to the start of the input buffer.
+ * \param end       The address for one Byte past the end of the buffer.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ *
+ */
+int mbedtls_everest_read_params( mbedtls_ecdh_context_everest *ctx,
+                                 const unsigned char **buf, const unsigned char *end );
+
+/**
+ * \brief           This function parses and processes a TLS ServerKeyExhange
+ *                  payload.
+ *
+ *                  This is the first function used by a TLS client for ECDHE
+ *                  ciphersuites.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context.
+ * \param buf       The pointer to the start of the input buffer.
+ * \param end       The address for one Byte past the end of the buffer.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ *
+ */
+int mbedtls_everest_read_params( mbedtls_ecdh_context_everest *ctx,
+                                 const unsigned char **buf, const unsigned char *end );
+
+/**
+ * \brief           This function sets up an ECDH context from an EC key.
+ *
+ *                  It is used by clients and servers in place of the
+ *                  ServerKeyEchange for static ECDH, and imports ECDH
+ *                  parameters from the EC key information of a certificate.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context to set up.
+ * \param key       The EC key to use.
+ * \param side      Defines the source of the key: 1: Our key, or
+ *                  0: The key of the peer.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ *
+ */
+int mbedtls_everest_get_params( mbedtls_ecdh_context_everest *ctx, const mbedtls_ecp_keypair *key,
+                                mbedtls_everest_ecdh_side side );
+
+/**
+ * \brief           This function generates a public key and a TLS
+ *                  ClientKeyExchange payload.
+ *
+ *                  This is the second function used by a TLS client for ECDH(E)
+ *                  ciphersuites.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context.
+ * \param olen      The number of Bytes written.
+ * \param buf       The destination buffer.
+ * \param blen      The size of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_everest_make_public( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng );
+
+/**
+ * \brief       This function parses and processes a TLS ClientKeyExchange
+ *              payload.
+ *
+ *              This is the third function used by a TLS server for ECDH(E)
+ *              ciphersuites. (It is called after mbedtls_ecdh_setup() and
+ *              mbedtls_ecdh_make_params().)
+ *
+ * \see         ecp.h
+ *
+ * \param ctx   The ECDH context.
+ * \param buf   The start of the input buffer.
+ * \param blen  The length of the input buffer.
+ *
+ * \return      \c 0 on success.
+ * \return      An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_everest_read_public( mbedtls_ecdh_context_everest *ctx,
+                                 const unsigned char *buf, size_t blen );
+
+/**
+ * \brief           This function derives and exports the shared secret.
+ *
+ *                  This is the last function used by both TLS client
+ *                  and servers.
+ *
+ * \note            If \p f_rng is not NULL, it is used to implement
+ *                  countermeasures against side-channel attacks.
+ *                  For more information, see mbedtls_ecp_mul().
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The ECDH context.
+ * \param olen      The number of Bytes written.
+ * \param buf       The destination buffer.
+ * \param blen      The length of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_everest_calc_secret( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_EVEREST_H */

3rdparty/everest/include/everest/kremlib.h

@@ -0,0 +1,29 @@
+/*
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of Mbed TLS (https://tls.mbed.org) and
+ *  originated from Project Everest (https://project-everest.github.io/)
+ */
+
+#ifndef __KREMLIB_H
+#define __KREMLIB_H
+
+#include "kremlin/internal/target.h"
+#include "kremlin/internal/types.h"
+#include "kremlin/c_endianness.h"
+
+#endif     /* __KREMLIB_H */

3rdparty/everest/include/everest/kremlib/FStar_UInt128.h

@@ -0,0 +1,124 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: ../krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrB9w -minimal -fparentheses -fcurly-braces -fno-shadow -header copyright-header.txt -minimal -tmpdir dist/uint128 -skip-compilation -extract-uints -add-include <inttypes.h> -add-include <stdbool.h> -add-include "kremlin/internal/types.h" -bundle FStar.UInt128=* extracted/prims.krml extracted/FStar_Pervasives_Native.krml extracted/FStar_Pervasives.krml extracted/FStar_Mul.krml extracted/FStar_Squash.krml extracted/FStar_Classical.krml extracted/FStar_StrongExcludedMiddle.krml extracted/FStar_FunctionalExtensionality.krml extracted/FStar_List_Tot_Base.krml extracted/FStar_List_Tot_Properties.krml extracted/FStar_List_Tot.krml extracted/FStar_Seq_Base.krml extracted/FStar_Seq_Properties.krml extracted/FStar_Seq.krml extracted/FStar_Math_Lib.krml extracted/FStar_Math_Lemmas.krml extracted/FStar_BitVector.krml extracted/FStar_UInt.krml extracted/FStar_UInt32.krml extracted/FStar_Int.krml extracted/FStar_Int16.krml extracted/FStar_Preorder.krml extracted/FStar_Ghost.krml extracted/FStar_ErasedLogic.krml extracted/FStar_UInt64.krml extracted/FStar_Set.krml extracted/FStar_PropositionalExtensionality.krml extracted/FStar_PredicateExtensionality.krml extracted/FStar_TSet.krml extracted/FStar_Monotonic_Heap.krml extracted/FStar_Heap.krml extracted/FStar_Map.krml extracted/FStar_Monotonic_HyperHeap.krml extracted/FStar_Monotonic_HyperStack.krml extracted/FStar_HyperStack.krml extracted/FStar_Monotonic_Witnessed.krml extracted/FStar_HyperStack_ST.krml extracted/FStar_HyperStack_All.krml extracted/FStar_Date.krml extracted/FStar_Universe.krml extracted/FStar_GSet.krml extracted/FStar_ModifiesGen.krml extracted/LowStar_Monotonic_Buffer.krml extracted/LowStar_Buffer.krml extracted/Spec_Loops.krml extracted/LowStar_BufferOps.krml extracted/C_Loops.krml extracted/FStar_UInt8.krml extracted/FStar_Kremlin_Endianness.krml extracted/FStar_UInt63.krml extracted/FStar_Exn.krml extracted/FStar_ST.krml extracted/FStar_All.krml extracted/FStar_Dyn.krml extracted/FStar_Int63.krml extracted/FStar_Int64.krml extracted/FStar_Int32.krml extracted/FStar_Int8.krml extracted/FStar_UInt16.krml extracted/FStar_Int_Cast.krml extracted/FStar_UInt128.krml extracted/C_Endianness.krml extracted/FStar_List.krml extracted/FStar_Float.krml extracted/FStar_IO.krml extracted/C.krml extracted/FStar_Char.krml extracted/FStar_String.krml extracted/LowStar_Modifies.krml extracted/C_String.krml extracted/FStar_Bytes.krml extracted/FStar_HyperStack_IO.krml extracted/C_Failure.krml extracted/TestLib.krml extracted/FStar_Int_Cast_Full.krml
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+
+#ifndef __FStar_UInt128_H
+#define __FStar_UInt128_H
+
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include "kremlin/internal/types.h"
+
+uint64_t FStar_UInt128___proj__Mkuint128__item__low(FStar_UInt128_uint128 projectee);
+
+uint64_t FStar_UInt128___proj__Mkuint128__item__high(FStar_UInt128_uint128 projectee);
+
+typedef FStar_UInt128_uint128 FStar_UInt128_t;
+
+FStar_UInt128_uint128 FStar_UInt128_add(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128
+FStar_UInt128_add_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_add_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_sub(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128
+FStar_UInt128_sub_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_sub_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_logand(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_logxor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_logor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_lognot(FStar_UInt128_uint128 a);
+
+FStar_UInt128_uint128 FStar_UInt128_shift_left(FStar_UInt128_uint128 a, uint32_t s);
+
+FStar_UInt128_uint128 FStar_UInt128_shift_right(FStar_UInt128_uint128 a, uint32_t s);
+
+bool FStar_UInt128_eq(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+bool FStar_UInt128_gt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+bool FStar_UInt128_lt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+bool FStar_UInt128_gte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+bool FStar_UInt128_lte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_eq_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_gte_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b);
+
+FStar_UInt128_uint128 FStar_UInt128_uint64_to_uint128(uint64_t a);
+
+uint64_t FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 a);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Question_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Percent_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Question_Hat)(
+  FStar_UInt128_uint128 x0,
+  FStar_UInt128_uint128 x1
+);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Percent_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Amp_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Hat_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Bar_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Less_Less_Hat)(FStar_UInt128_uint128 x0, uint32_t x1);
+
+extern FStar_UInt128_uint128
+(*FStar_UInt128_op_Greater_Greater_Hat)(FStar_UInt128_uint128 x0, uint32_t x1);
+
+extern bool (*FStar_UInt128_op_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern bool
+(*FStar_UInt128_op_Greater_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern bool (*FStar_UInt128_op_Less_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern bool
+(*FStar_UInt128_op_Greater_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern bool
+(*FStar_UInt128_op_Less_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+FStar_UInt128_uint128 FStar_UInt128_mul32(uint64_t x, uint32_t y);
+
+FStar_UInt128_uint128 FStar_UInt128_mul_wide(uint64_t x, uint64_t y);
+
+#define __FStar_UInt128_H_DEFINED
+#endif

3rdparty/everest/include/everest/kremlib/FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.h

@@ -0,0 +1,280 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: ../krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrB9w -minimal -fparentheses -fcurly-braces -fno-shadow -header copyright-header.txt -minimal -tmpdir dist/minimal -skip-compilation -extract-uints -add-include <inttypes.h> -add-include <stdbool.h> -add-include "kremlin/internal/compat.h" -add-include "kremlin/internal/types.h" -bundle FStar.UInt64+FStar.UInt32+FStar.UInt16+FStar.UInt8=* extracted/prims.krml extracted/FStar_Pervasives_Native.krml extracted/FStar_Pervasives.krml extracted/FStar_Mul.krml extracted/FStar_Squash.krml extracted/FStar_Classical.krml extracted/FStar_StrongExcludedMiddle.krml extracted/FStar_FunctionalExtensionality.krml extracted/FStar_List_Tot_Base.krml extracted/FStar_List_Tot_Properties.krml extracted/FStar_List_Tot.krml extracted/FStar_Seq_Base.krml extracted/FStar_Seq_Properties.krml extracted/FStar_Seq.krml extracted/FStar_Math_Lib.krml extracted/FStar_Math_Lemmas.krml extracted/FStar_BitVector.krml extracted/FStar_UInt.krml extracted/FStar_UInt32.krml extracted/FStar_Int.krml extracted/FStar_Int16.krml extracted/FStar_Preorder.krml extracted/FStar_Ghost.krml extracted/FStar_ErasedLogic.krml extracted/FStar_UInt64.krml extracted/FStar_Set.krml extracted/FStar_PropositionalExtensionality.krml extracted/FStar_PredicateExtensionality.krml extracted/FStar_TSet.krml extracted/FStar_Monotonic_Heap.krml extracted/FStar_Heap.krml extracted/FStar_Map.krml extracted/FStar_Monotonic_HyperHeap.krml extracted/FStar_Monotonic_HyperStack.krml extracted/FStar_HyperStack.krml extracted/FStar_Monotonic_Witnessed.krml extracted/FStar_HyperStack_ST.krml extracted/FStar_HyperStack_All.krml extracted/FStar_Date.krml extracted/FStar_Universe.krml extracted/FStar_GSet.krml extracted/FStar_ModifiesGen.krml extracted/LowStar_Monotonic_Buffer.krml extracted/LowStar_Buffer.krml extracted/Spec_Loops.krml extracted/LowStar_BufferOps.krml extracted/C_Loops.krml extracted/FStar_UInt8.krml extracted/FStar_Kremlin_Endianness.krml extracted/FStar_UInt63.krml extracted/FStar_Exn.krml extracted/FStar_ST.krml extracted/FStar_All.krml extracted/FStar_Dyn.krml extracted/FStar_Int63.krml extracted/FStar_Int64.krml extracted/FStar_Int32.krml extracted/FStar_Int8.krml extracted/FStar_UInt16.krml extracted/FStar_Int_Cast.krml extracted/FStar_UInt128.krml extracted/C_Endianness.krml extracted/FStar_List.krml extracted/FStar_Float.krml extracted/FStar_IO.krml extracted/C.krml extracted/FStar_Char.krml extracted/FStar_String.krml extracted/LowStar_Modifies.krml extracted/C_String.krml extracted/FStar_Bytes.krml extracted/FStar_HyperStack_IO.krml extracted/C_Failure.krml extracted/TestLib.krml extracted/FStar_Int_Cast_Full.krml
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+
+#ifndef __FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8_H
+#define __FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8_H
+
+
+#include <inttypes.h>
+#include <stdbool.h>
+#include "kremlin/internal/compat.h"
+#include "kremlin/internal/types.h"
+
+extern Prims_int FStar_UInt64_n;
+
+extern Prims_int FStar_UInt64_v(uint64_t x0);
+
+extern uint64_t FStar_UInt64_uint_to_t(Prims_int x0);
+
+extern uint64_t FStar_UInt64_add(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_add_underspec(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_add_mod(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_sub(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_sub_underspec(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_sub_mod(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_mul(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_mul_underspec(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_mul_mod(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_mul_div(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_div(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_rem(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_logand(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_logxor(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_logor(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_lognot(uint64_t x0);
+
+extern uint64_t FStar_UInt64_shift_right(uint64_t x0, uint32_t x1);
+
+extern uint64_t FStar_UInt64_shift_left(uint64_t x0, uint32_t x1);
+
+extern bool FStar_UInt64_eq(uint64_t x0, uint64_t x1);
+
+extern bool FStar_UInt64_gt(uint64_t x0, uint64_t x1);
+
+extern bool FStar_UInt64_gte(uint64_t x0, uint64_t x1);
+
+extern bool FStar_UInt64_lt(uint64_t x0, uint64_t x1);
+
+extern bool FStar_UInt64_lte(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_minus(uint64_t x0);
+
+extern uint32_t FStar_UInt64_n_minus_one;
+
+uint64_t FStar_UInt64_eq_mask(uint64_t a, uint64_t b);
+
+uint64_t FStar_UInt64_gte_mask(uint64_t a, uint64_t b);
+
+extern Prims_string FStar_UInt64_to_string(uint64_t x0);
+
+extern uint64_t FStar_UInt64_of_string(Prims_string x0);
+
+extern Prims_int FStar_UInt32_n;
+
+extern Prims_int FStar_UInt32_v(uint32_t x0);
+
+extern uint32_t FStar_UInt32_uint_to_t(Prims_int x0);
+
+extern uint32_t FStar_UInt32_add(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_add_underspec(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_add_mod(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_sub(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_sub_underspec(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_sub_mod(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_mul(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_mul_underspec(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_mul_mod(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_mul_div(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_div(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_rem(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_logand(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_logxor(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_logor(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_lognot(uint32_t x0);
+
+extern uint32_t FStar_UInt32_shift_right(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_shift_left(uint32_t x0, uint32_t x1);
+
+extern bool FStar_UInt32_eq(uint32_t x0, uint32_t x1);
+
+extern bool FStar_UInt32_gt(uint32_t x0, uint32_t x1);
+
+extern bool FStar_UInt32_gte(uint32_t x0, uint32_t x1);
+
+extern bool FStar_UInt32_lt(uint32_t x0, uint32_t x1);
+
+extern bool FStar_UInt32_lte(uint32_t x0, uint32_t x1);
+
+extern uint32_t FStar_UInt32_minus(uint32_t x0);
+
+extern uint32_t FStar_UInt32_n_minus_one;
+
+uint32_t FStar_UInt32_eq_mask(uint32_t a, uint32_t b);
+
+uint32_t FStar_UInt32_gte_mask(uint32_t a, uint32_t b);
+
+extern Prims_string FStar_UInt32_to_string(uint32_t x0);
+
+extern uint32_t FStar_UInt32_of_string(Prims_string x0);
+
+extern Prims_int FStar_UInt16_n;
+
+extern Prims_int FStar_UInt16_v(uint16_t x0);
+
+extern uint16_t FStar_UInt16_uint_to_t(Prims_int x0);
+
+extern uint16_t FStar_UInt16_add(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_add_underspec(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_add_mod(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_sub(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_sub_underspec(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_sub_mod(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_mul(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_mul_underspec(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_mul_mod(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_mul_div(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_div(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_rem(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_logand(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_logxor(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_logor(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_lognot(uint16_t x0);
+
+extern uint16_t FStar_UInt16_shift_right(uint16_t x0, uint32_t x1);
+
+extern uint16_t FStar_UInt16_shift_left(uint16_t x0, uint32_t x1);
+
+extern bool FStar_UInt16_eq(uint16_t x0, uint16_t x1);
+
+extern bool FStar_UInt16_gt(uint16_t x0, uint16_t x1);
+
+extern bool FStar_UInt16_gte(uint16_t x0, uint16_t x1);
+
+extern bool FStar_UInt16_lt(uint16_t x0, uint16_t x1);
+
+extern bool FStar_UInt16_lte(uint16_t x0, uint16_t x1);
+
+extern uint16_t FStar_UInt16_minus(uint16_t x0);
+
+extern uint32_t FStar_UInt16_n_minus_one;
+
+uint16_t FStar_UInt16_eq_mask(uint16_t a, uint16_t b);
+
+uint16_t FStar_UInt16_gte_mask(uint16_t a, uint16_t b);
+
+extern Prims_string FStar_UInt16_to_string(uint16_t x0);
+
+extern uint16_t FStar_UInt16_of_string(Prims_string x0);
+
+extern Prims_int FStar_UInt8_n;
+
+extern Prims_int FStar_UInt8_v(uint8_t x0);
+
+extern uint8_t FStar_UInt8_uint_to_t(Prims_int x0);
+
+extern uint8_t FStar_UInt8_add(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_add_underspec(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_add_mod(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_sub(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_sub_underspec(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_sub_mod(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_mul(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_mul_underspec(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_mul_mod(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_mul_div(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_div(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_rem(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_logand(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_logxor(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_logor(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_lognot(uint8_t x0);
+
+extern uint8_t FStar_UInt8_shift_right(uint8_t x0, uint32_t x1);
+
+extern uint8_t FStar_UInt8_shift_left(uint8_t x0, uint32_t x1);
+
+extern bool FStar_UInt8_eq(uint8_t x0, uint8_t x1);
+
+extern bool FStar_UInt8_gt(uint8_t x0, uint8_t x1);
+
+extern bool FStar_UInt8_gte(uint8_t x0, uint8_t x1);
+
+extern bool FStar_UInt8_lt(uint8_t x0, uint8_t x1);
+
+extern bool FStar_UInt8_lte(uint8_t x0, uint8_t x1);
+
+extern uint8_t FStar_UInt8_minus(uint8_t x0);
+
+extern uint32_t FStar_UInt8_n_minus_one;
+
+uint8_t FStar_UInt8_eq_mask(uint8_t a, uint8_t b);
+
+uint8_t FStar_UInt8_gte_mask(uint8_t a, uint8_t b);
+
+extern Prims_string FStar_UInt8_to_string(uint8_t x0);
+
+extern uint8_t FStar_UInt8_of_string(Prims_string x0);
+
+typedef uint8_t FStar_UInt8_byte;
+
+#define __FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8_H_DEFINED
+#endif

3rdparty/everest/include/everest/kremlin/c_endianness.h

@@ -0,0 +1,204 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef __KREMLIN_ENDIAN_H
+#define __KREMLIN_ENDIAN_H
+
+#include <string.h>
+#include <inttypes.h>
+
+/******************************************************************************/
+/* Implementing C.fst (part 2: endian-ness macros)                            */
+/******************************************************************************/
+
+/* ... for Linux */
+#if defined(__linux__) || defined(__CYGWIN__)
+#  include <endian.h>
+
+/* ... for OSX */
+#elif defined(__APPLE__)
+#  include <libkern/OSByteOrder.h>
+#  define htole64(x) OSSwapHostToLittleInt64(x)
+#  define le64toh(x) OSSwapLittleToHostInt64(x)
+#  define htobe64(x) OSSwapHostToBigInt64(x)
+#  define be64toh(x) OSSwapBigToHostInt64(x)
+
+#  define htole16(x) OSSwapHostToLittleInt16(x)
+#  define le16toh(x) OSSwapLittleToHostInt16(x)
+#  define htobe16(x) OSSwapHostToBigInt16(x)
+#  define be16toh(x) OSSwapBigToHostInt16(x)
+
+#  define htole32(x) OSSwapHostToLittleInt32(x)
+#  define le32toh(x) OSSwapLittleToHostInt32(x)
+#  define htobe32(x) OSSwapHostToBigInt32(x)
+#  define be32toh(x) OSSwapBigToHostInt32(x)
+
+/* ... for Solaris */
+#elif defined(__sun__)
+#  include <sys/byteorder.h>
+#  define htole64(x) LE_64(x)
+#  define le64toh(x) LE_64(x)
+#  define htobe64(x) BE_64(x)
+#  define be64toh(x) BE_64(x)
+
+#  define htole16(x) LE_16(x)
+#  define le16toh(x) LE_16(x)
+#  define htobe16(x) BE_16(x)
+#  define be16toh(x) BE_16(x)
+
+#  define htole32(x) LE_32(x)
+#  define le32toh(x) LE_32(x)
+#  define htobe32(x) BE_32(x)
+#  define be32toh(x) BE_32(x)
+
+/* ... for the BSDs */
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__)
+#  include <sys/endian.h>
+#elif defined(__OpenBSD__)
+#  include <endian.h>
+
+/* ... for Windows (MSVC)... not targeting XBOX 360! */
+#elif defined(_MSC_VER)
+
+#  include <stdlib.h>
+#  define htobe16(x) _byteswap_ushort(x)
+#  define htole16(x) (x)
+#  define be16toh(x) _byteswap_ushort(x)
+#  define le16toh(x) (x)
+
+#  define htobe32(x) _byteswap_ulong(x)
+#  define htole32(x) (x)
+#  define be32toh(x) _byteswap_ulong(x)
+#  define le32toh(x) (x)
+
+#  define htobe64(x) _byteswap_uint64(x)
+#  define htole64(x) (x)
+#  define be64toh(x) _byteswap_uint64(x)
+#  define le64toh(x) (x)
+
+/* ... for Windows (GCC-like, e.g. mingw or clang) */
+#elif (defined(_WIN32) || defined(_WIN64)) &&                                  \
+    (defined(__GNUC__) || defined(__clang__))
+
+#  define htobe16(x) __builtin_bswap16(x)
+#  define htole16(x) (x)
+#  define be16toh(x) __builtin_bswap16(x)
+#  define le16toh(x) (x)
+
+#  define htobe32(x) __builtin_bswap32(x)
+#  define htole32(x) (x)
+#  define be32toh(x) __builtin_bswap32(x)
+#  define le32toh(x) (x)
+
+#  define htobe64(x) __builtin_bswap64(x)
+#  define htole64(x) (x)
+#  define be64toh(x) __builtin_bswap64(x)
+#  define le64toh(x) (x)
+
+/* ... generic big-endian fallback code */
+#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+
+/* byte swapping code inspired by:
+ * https://github.com/rweather/arduinolibs/blob/master/libraries/Crypto/utility/EndianUtil.h
+ * */
+
+#  define htobe32(x) (x)
+#  define be32toh(x) (x)
+#  define htole32(x)                                                           \
+    (__extension__({                                                           \
+      uint32_t _temp = (x);                                                    \
+      ((_temp >> 24) & 0x000000FF) | ((_temp >> 8) & 0x0000FF00) |             \
+          ((_temp << 8) & 0x00FF0000) | ((_temp << 24) & 0xFF000000);          \
+    }))
+#  define le32toh(x) (htole32((x)))
+
+#  define htobe64(x) (x)
+#  define be64toh(x) (x)
+#  define htole64(x)                                                           \
+    (__extension__({                                                           \
+      uint64_t __temp = (x);                                                   \
+      uint32_t __low = htobe32((uint32_t)__temp);                              \
+      uint32_t __high = htobe32((uint32_t)(__temp >> 32));                     \
+      (((uint64_t)__low) << 32) | __high;                                      \
+    }))
+#  define le64toh(x) (htole64((x)))
+
+/* ... generic little-endian fallback code */
+#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+
+#  define htole32(x) (x)
+#  define le32toh(x) (x)
+#  define htobe32(x)                                                           \
+    (__extension__({                                                           \
+      uint32_t _temp = (x);                                                    \
+      ((_temp >> 24) & 0x000000FF) | ((_temp >> 8) & 0x0000FF00) |             \
+          ((_temp << 8) & 0x00FF0000) | ((_temp << 24) & 0xFF000000);          \
+    }))
+#  define be32toh(x) (htobe32((x)))
+
+#  define htole64(x) (x)
+#  define le64toh(x) (x)
+#  define htobe64(x)                                                           \
+    (__extension__({                                                           \
+      uint64_t __temp = (x);                                                   \
+      uint32_t __low = htobe32((uint32_t)__temp);                              \
+      uint32_t __high = htobe32((uint32_t)(__temp >> 32));                     \
+      (((uint64_t)__low) << 32) | __high;                                      \
+    }))
+#  define be64toh(x) (htobe64((x)))
+
+/* ... couldn't determine endian-ness of the target platform */
+#else
+#  error "Please define __BYTE_ORDER__!"
+
+#endif /* defined(__linux__) || ... */
+
+/* Loads and stores. These avoid undefined behavior due to unaligned memory
+ * accesses, via memcpy. */
+
+inline static uint16_t load16(uint8_t *b) {
+  uint16_t x;
+  memcpy(&x, b, 2);
+  return x;
+}
+
+inline static uint32_t load32(uint8_t *b) {
+  uint32_t x;
+  memcpy(&x, b, 4);
+  return x;
+}
+
+inline static uint64_t load64(uint8_t *b) {
+  uint64_t x;
+  memcpy(&x, b, 8);
+  return x;
+}
+
+inline static void store16(uint8_t *b, uint16_t i) {
+  memcpy(b, &i, 2);
+}
+
+inline static void store32(uint8_t *b, uint32_t i) {
+  memcpy(b, &i, 4);
+}
+
+inline static void store64(uint8_t *b, uint64_t i) {
+  memcpy(b, &i, 8);
+}
+
+#define load16_le(b) (le16toh(load16(b)))
+#define store16_le(b, i) (store16(b, htole16(i)))
+#define load16_be(b) (be16toh(load16(b)))
+#define store16_be(b, i) (store16(b, htobe16(i)))
+
+#define load32_le(b) (le32toh(load32(b)))
+#define store32_le(b, i) (store32(b, htole32(i)))
+#define load32_be(b) (be32toh(load32(b)))
+#define store32_be(b, i) (store32(b, htobe32(i)))
+
+#define load64_le(b) (le64toh(load64(b)))
+#define store64_le(b, i) (store64(b, htole64(i)))
+#define load64_be(b) (be64toh(load64(b)))
+#define store64_be(b, i) (store64(b, htobe64(i)))
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/builtin.h

@@ -0,0 +1,16 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef __KREMLIN_BUILTIN_H
+#define __KREMLIN_BUILTIN_H
+
+/* For alloca, when using KreMLin's -falloca */
+#if (defined(_WIN32) || defined(_WIN64))
+#  include <malloc.h>
+#endif
+
+/* If some globals need to be initialized before the main, then kremlin will
+ * generate and try to link last a function with this type: */
+void kremlinit_globals(void);
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/callconv.h

@@ -0,0 +1,46 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef __KREMLIN_CALLCONV_H
+#define __KREMLIN_CALLCONV_H
+
+/******************************************************************************/
+/* Some macros to ease compatibility                                          */
+/******************************************************************************/
+
+/* We want to generate __cdecl safely without worrying about it being undefined.
+ * When using MSVC, these are always defined. When using MinGW, these are
+ * defined too. They have no meaning for other platforms, so we define them to
+ * be empty macros in other situations. */
+#ifndef _MSC_VER
+#ifndef __cdecl
+#define __cdecl
+#endif
+#ifndef __stdcall
+#define __stdcall
+#endif
+#ifndef __fastcall
+#define __fastcall
+#endif
+#endif
+
+/* Since KreMLin emits the inline keyword unconditionally, we follow the
+ * guidelines at https://gcc.gnu.org/onlinedocs/gcc/Inline.html and make this
+ * __inline__ to ensure the code compiles with -std=c90 and earlier. */
+#ifdef __GNUC__
+#  define inline __inline__
+#endif
+
+/* GCC-specific attribute syntax; everyone else gets the standard C inline
+ * attribute. */
+#ifdef __GNU_C__
+#  ifndef __clang__
+#    define force_inline inline __attribute__((always_inline))
+#  else
+#    define force_inline inline
+#  endif
+#else
+#  define force_inline inline
+#endif
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/compat.h

@@ -0,0 +1,34 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef KRML_COMPAT_H
+#define KRML_COMPAT_H
+
+#include <inttypes.h>
+
+/* A series of macros that define C implementations of types that are not Low*,
+ * to facilitate porting programs to Low*. */
+
+typedef const char *Prims_string;
+
+typedef struct {
+  uint32_t length;
+  const char *data;
+} FStar_Bytes_bytes;
+
+typedef int32_t Prims_pos, Prims_nat, Prims_nonzero, Prims_int,
+    krml_checked_int_t;
+
+#define RETURN_OR(x)                                                           \
+  do {                                                                         \
+    int64_t __ret = x;                                                         \
+    if (__ret < INT32_MIN || INT32_MAX < __ret) {                              \
+      KRML_HOST_PRINTF(                                                        \
+          "Prims.{int,nat,pos} integer overflow at %s:%d\n", __FILE__,         \
+          __LINE__);                                                           \
+      KRML_HOST_EXIT(252);                                                     \
+    }                                                                          \
+    return (int32_t)__ret;                                                     \
+  } while (0)
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/debug.h

@@ -0,0 +1,57 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef __KREMLIN_DEBUG_H
+#define __KREMLIN_DEBUG_H
+
+#include <inttypes.h>
+
+#include "kremlin/internal/target.h"
+
+/******************************************************************************/
+/* Debugging helpers - intended only for KreMLin developers                   */
+/******************************************************************************/
+
+/* In support of "-wasm -d force-c": we might need this function to be
+ * forward-declared, because the dependency on WasmSupport appears very late,
+ * after SimplifyWasm, and sadly, after the topological order has been done. */
+void WasmSupport_check_buffer_size(uint32_t s);
+
+/* A series of GCC atrocities to trace function calls (kremlin's [-d c-calls]
+ * option). Useful when trying to debug, say, Wasm, to compare traces. */
+/* clang-format off */
+#ifdef __GNUC__
+#define KRML_FORMAT(X) _Generic((X),                                           \
+  uint8_t : "0x%08" PRIx8,                                                     \
+  uint16_t: "0x%08" PRIx16,                                                    \
+  uint32_t: "0x%08" PRIx32,                                                    \
+  uint64_t: "0x%08" PRIx64,                                                    \
+  int8_t  : "0x%08" PRIx8,                                                     \
+  int16_t : "0x%08" PRIx16,                                                    \
+  int32_t : "0x%08" PRIx32,                                                    \
+  int64_t : "0x%08" PRIx64,                                                    \
+  default : "%s")
+
+#define KRML_FORMAT_ARG(X) _Generic((X),                                       \
+  uint8_t : X,                                                                 \
+  uint16_t: X,                                                                 \
+  uint32_t: X,                                                                 \
+  uint64_t: X,                                                                 \
+  int8_t  : X,                                                                 \
+  int16_t : X,                                                                 \
+  int32_t : X,                                                                 \
+  int64_t : X,                                                                 \
+  default : "unknown")
+/* clang-format on */
+
+#  define KRML_DEBUG_RETURN(X)                                                 \
+    ({                                                                         \
+      __auto_type _ret = (X);                                                  \
+      KRML_HOST_PRINTF("returning: ");                                         \
+      KRML_HOST_PRINTF(KRML_FORMAT(_ret), KRML_FORMAT_ARG(_ret));              \
+      KRML_HOST_PRINTF(" \n");                                                 \
+      _ret;                                                                    \
+    })
+#endif
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/target.h

@@ -0,0 +1,102 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef __KREMLIN_TARGET_H
+#define __KREMLIN_TARGET_H
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <limits.h>
+
+#include "kremlin/internal/callconv.h"
+
+/******************************************************************************/
+/* Macros that KreMLin will generate.                                         */
+/******************************************************************************/
+
+/* For "bare" targets that do not have a C stdlib, the user might want to use
+ * [-add-early-include '"mydefinitions.h"'] and override these. */
+#ifndef KRML_HOST_PRINTF
+#  define KRML_HOST_PRINTF printf
+#endif
+
+#if (                                                                          \
+    (defined __STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) &&             \
+    (!(defined KRML_HOST_EPRINTF)))
+#  define KRML_HOST_EPRINTF(...) fprintf(stderr, __VA_ARGS__)
+#endif
+
+#ifndef KRML_HOST_EXIT
+#  define KRML_HOST_EXIT exit
+#endif
+
+#ifndef KRML_HOST_MALLOC
+#  define KRML_HOST_MALLOC malloc
+#endif
+
+#ifndef KRML_HOST_CALLOC
+#  define KRML_HOST_CALLOC calloc
+#endif
+
+#ifndef KRML_HOST_FREE
+#  define KRML_HOST_FREE free
+#endif
+
+#ifndef KRML_HOST_TIME
+
+#  include <time.h>
+
+/* Prims_nat not yet in scope */
+inline static int32_t krml_time() {
+  return (int32_t)time(NULL);
+}
+
+#  define KRML_HOST_TIME krml_time
+#endif
+
+/* In statement position, exiting is easy. */
+#define KRML_EXIT                                                              \
+  do {                                                                         \
+    KRML_HOST_PRINTF("Unimplemented function at %s:%d\n", __FILE__, __LINE__); \
+    KRML_HOST_EXIT(254);                                                       \
+  } while (0)
+
+/* In expression position, use the comma-operator and a malloc to return an
+ * expression of the right size. KreMLin passes t as the parameter to the macro.
+ */
+#define KRML_EABORT(t, msg)                                                    \
+  (KRML_HOST_PRINTF("KreMLin abort at %s:%d\n%s\n", __FILE__, __LINE__, msg),  \
+   KRML_HOST_EXIT(255), *((t *)KRML_HOST_MALLOC(sizeof(t))))
+
+/* In FStar.Buffer.fst, the size of arrays is uint32_t, but it's a number of
+ * *elements*. Do an ugly, run-time check (some of which KreMLin can eliminate).
+ */
+
+#ifdef __GNUC__
+#  define _KRML_CHECK_SIZE_PRAGMA                                              \
+    _Pragma("GCC diagnostic ignored \"-Wtype-limits\"")
+#else
+#  define _KRML_CHECK_SIZE_PRAGMA
+#endif
+
+#define KRML_CHECK_SIZE(size_elt, sz)                                          \
+  do {                                                                         \
+    _KRML_CHECK_SIZE_PRAGMA                                                    \
+    if (((size_t)(sz)) > ((size_t)(SIZE_MAX / (size_elt)))) {                  \
+      KRML_HOST_PRINTF(                                                        \
+          "Maximum allocatable size exceeded, aborting before overflow at "    \
+          "%s:%d\n",                                                           \
+          __FILE__, __LINE__);                                                 \
+      KRML_HOST_EXIT(253);                                                     \
+    }                                                                          \
+  } while (0)
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#  define KRML_HOST_SNPRINTF(buf, sz, fmt, arg) _snprintf_s(buf, sz, _TRUNCATE, fmt, arg)
+#else
+#  define KRML_HOST_SNPRINTF(buf, sz, fmt, arg) snprintf(buf, sz, fmt, arg)
+#endif
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/types.h

@@ -0,0 +1,61 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+#ifndef KRML_TYPES_H
+#define KRML_TYPES_H
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+/* Types which are either abstract, meaning that have to be implemented in C, or
+ * which are models, meaning that they are swapped out at compile-time for
+ * hand-written C types (in which case they're marked as noextract). */
+
+typedef uint64_t FStar_UInt64_t, FStar_UInt64_t_;
+typedef int64_t FStar_Int64_t, FStar_Int64_t_;
+typedef uint32_t FStar_UInt32_t, FStar_UInt32_t_;
+typedef int32_t FStar_Int32_t, FStar_Int32_t_;
+typedef uint16_t FStar_UInt16_t, FStar_UInt16_t_;
+typedef int16_t FStar_Int16_t, FStar_Int16_t_;
+typedef uint8_t FStar_UInt8_t, FStar_UInt8_t_;
+typedef int8_t FStar_Int8_t, FStar_Int8_t_;
+
+/* Only useful when building Kremlib, because it's in the dependency graph of
+ * FStar.Int.Cast. */
+typedef uint64_t FStar_UInt63_t, FStar_UInt63_t_;
+typedef int64_t FStar_Int63_t, FStar_Int63_t_;
+
+typedef double FStar_Float_float;
+typedef uint32_t FStar_Char_char;
+typedef FILE *FStar_IO_fd_read, *FStar_IO_fd_write;
+
+typedef void *FStar_Dyn_dyn;
+
+typedef const char *C_String_t, *C_String_t_;
+
+typedef int exit_code;
+typedef FILE *channel;
+
+typedef unsigned long long TestLib_cycles;
+
+typedef uint64_t FStar_Date_dateTime, FStar_Date_timeSpan;
+
+/* The uint128 type is a special case since we offer several implementations of
+ * it, depending on the compiler and whether the user wants the verified
+ * implementation or not. */
+#if !defined(KRML_VERIFIED_UINT128) && defined(_MSC_VER) && defined(_M_X64)
+#  include <emmintrin.h>
+typedef __m128i FStar_UInt128_uint128;
+#elif !defined(KRML_VERIFIED_UINT128) && !defined(_MSC_VER)
+typedef unsigned __int128 FStar_UInt128_uint128;
+#else
+typedef struct FStar_UInt128_uint128_s {
+  uint64_t low;
+  uint64_t high;
+} FStar_UInt128_uint128;
+#endif
+
+typedef FStar_UInt128_uint128 FStar_UInt128_t, FStar_UInt128_t_, uint128_t;
+
+#endif

3rdparty/everest/include/everest/kremlin/internal/wasmsupport.h

@@ -0,0 +1,5 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file is automatically included when compiling with -wasm -d force-c */
+#define WasmSupport_check_buffer_size(X)

3rdparty/everest/include/everest/vs2010/Hacl_Curve25519.h

@@ -0,0 +1,21 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+
+#ifndef __Hacl_Curve25519_H
+#define __Hacl_Curve25519_H
+
+
+#include "kremlib.h"
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint);
+
+#define __Hacl_Curve25519_H_DEFINED
+#endif

3rdparty/everest/include/everest/vs2010/inttypes.h

@@ -0,0 +1,36 @@
+/*
+ *  Custom inttypes.h for VS2010 KreMLin requires these definitions,
+ *  but VS2010 doesn't provide them.
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef _INTTYPES_H_VS2010
+#define _INTTYPES_H_VS2010
+
+#include <stdint.h>
+
+#ifdef _MSC_VER
+#define inline __inline
+#endif
+
+/* VS2010 unsigned long == 8 bytes */
+
+#define PRIu64 "I64u"
+
+#endif

3rdparty/everest/include/everest/vs2010/stdbool.h

@@ -0,0 +1,31 @@
+/*
+ *  Custom stdbool.h for VS2010 KreMLin requires these definitions,
+ *  but VS2010 doesn't provide them.
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef _STDBOOL_H_VS2010
+#define _STDBOOL_H_VS2010
+
+typedef int bool;
+
+static bool true = 1;
+static bool false = 0;
+
+#endif

3rdparty/everest/include/everest/x25519.h

@@ -0,0 +1,190 @@
+/*
+ *  ECDH with curve-optimized implementation multiplexing
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#ifndef MBEDTLS_X25519_H
+#define MBEDTLS_X25519_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define MBEDTLS_ECP_TLS_CURVE25519 0x1d
+#define MBEDTLS_X25519_KEY_SIZE_BYTES 32
+
+/**
+ * Defines the source of the imported EC key.
+ */
+typedef enum
+{
+    MBEDTLS_X25519_ECDH_OURS,   /**< Our key. */
+    MBEDTLS_X25519_ECDH_THEIRS, /**< The key of the peer. */
+} mbedtls_x25519_ecdh_side;
+
+/**
+ * \brief           The x25519 context structure.
+ */
+typedef struct
+{
+  unsigned char our_secret[MBEDTLS_X25519_KEY_SIZE_BYTES];
+  unsigned char peer_point[MBEDTLS_X25519_KEY_SIZE_BYTES];
+} mbedtls_x25519_context;
+
+/**
+ * \brief           This function initializes an x25519 context.
+ *
+ * \param ctx       The x25519 context to initialize.
+ */
+void mbedtls_x25519_init( mbedtls_x25519_context *ctx );
+
+/**
+ * \brief           This function frees a context.
+ *
+ * \param ctx       The context to free.
+ */
+void mbedtls_x25519_free( mbedtls_x25519_context *ctx );
+
+/**
+ * \brief           This function generates a public key and a TLS
+ *                  ServerKeyExchange payload.
+ *
+ *                  This is the first function used by a TLS server for x25519.
+ *
+ *
+ * \param ctx       The x25519 context.
+ * \param olen      The number of characters written.
+ * \param buf       The destination buffer.
+ * \param blen      The length of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_x25519_make_params( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng );
+
+/**
+ * \brief           This function parses and processes a TLS ServerKeyExchange
+ *                  payload.
+ *
+ *
+ * \param ctx       The x25519 context.
+ * \param buf       The pointer to the start of the input buffer.
+ * \param end       The address for one Byte past the end of the buffer.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ *
+ */
+int mbedtls_x25519_read_params( mbedtls_x25519_context *ctx,
+                        const unsigned char **buf, const unsigned char *end );
+
+/**
+ * \brief           This function sets up an x25519 context from an EC key.
+ *
+ *                  It is used by clients and servers in place of the
+ *                  ServerKeyEchange for static ECDH, and imports ECDH
+ *                  parameters from the EC key information of a certificate.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The x25519 context to set up.
+ * \param key       The EC key to use.
+ * \param side      Defines the source of the key: 1: Our key, or
+ *                  0: The key of the peer.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ *
+ */
+int mbedtls_x25519_get_params( mbedtls_x25519_context *ctx, const mbedtls_ecp_keypair *key,
+                               mbedtls_x25519_ecdh_side side );
+
+/**
+ * \brief           This function derives and exports the shared secret.
+ *
+ *                  This is the last function used by both TLS client
+ *                  and servers.
+ *
+ *
+ * \param ctx       The x25519 context.
+ * \param olen      The number of Bytes written.
+ * \param buf       The destination buffer.
+ * \param blen      The length of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_x25519_calc_secret( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng );
+
+/**
+ * \brief           This function generates a public key and a TLS
+ *                  ClientKeyExchange payload.
+ *
+ *                  This is the second function used by a TLS client for x25519.
+ *
+ * \see             ecp.h
+ *
+ * \param ctx       The x25519 context.
+ * \param olen      The number of Bytes written.
+ * \param buf       The destination buffer.
+ * \param blen      The size of the destination buffer.
+ * \param f_rng     The RNG function.
+ * \param p_rng     The RNG context.
+ *
+ * \return          \c 0 on success.
+ * \return          An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_x25519_make_public( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng );
+
+/**
+ * \brief       This function parses and processes a TLS ClientKeyExchange
+ *              payload.
+ *
+ *              This is the second function used by a TLS server for x25519.
+ *
+ * \see         ecp.h
+ *
+ * \param ctx   The x25519 context.
+ * \param buf   The start of the input buffer.
+ * \param blen  The length of the input buffer.
+ *
+ * \return      \c 0 on success.
+ * \return      An \c MBEDTLS_ERR_ECP_XXX error code on failure.
+ */
+int mbedtls_x25519_read_public( mbedtls_x25519_context *ctx,
+                        const unsigned char *buf, size_t blen );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* x25519.h */

3rdparty/everest/library/Hacl_Curve25519.c

@@ -0,0 +1,760 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fbuiltin-uint128 -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+#include "Hacl_Curve25519.h"
+
+extern uint64_t FStar_UInt64_eq_mask(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_gte_mask(uint64_t x0, uint64_t x1);
+
+extern uint128_t FStar_UInt128_add(uint128_t x0, uint128_t x1);
+
+extern uint128_t FStar_UInt128_add_mod(uint128_t x0, uint128_t x1);
+
+extern uint128_t FStar_UInt128_logand(uint128_t x0, uint128_t x1);
+
+extern uint128_t FStar_UInt128_shift_right(uint128_t x0, uint32_t x1);
+
+extern uint128_t FStar_UInt128_uint64_to_uint128(uint64_t x0);
+
+extern uint64_t FStar_UInt128_uint128_to_uint64(uint128_t x0);
+
+extern uint128_t FStar_UInt128_mul_wide(uint64_t x0, uint64_t x1);
+
+static void Hacl_Bignum_Modulo_carry_top(uint64_t *b)
+{
+  uint64_t b4 = b[4U];
+  uint64_t b0 = b[0U];
+  uint64_t b4_ = b4 & (uint64_t)0x7ffffffffffffU;
+  uint64_t b0_ = b0 + (uint64_t)19U * (b4 >> (uint32_t)51U);
+  b[4U] = b4_;
+  b[0U] = b0_;
+}
+
+inline static void Hacl_Bignum_Fproduct_copy_from_wide_(uint64_t *output, uint128_t *input)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    uint128_t xi = input[i];
+    output[i] = (uint64_t)xi;
+  }
+}
+
+inline static void
+Hacl_Bignum_Fproduct_sum_scalar_multiplication_(uint128_t *output, uint64_t *input, uint64_t s)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    uint128_t xi = output[i];
+    uint64_t yi = input[i];
+    output[i] = xi + (uint128_t)yi * s;
+  }
+}
+
+inline static void Hacl_Bignum_Fproduct_carry_wide_(uint128_t *tmp)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+  {
+    uint32_t ctr = i;
+    uint128_t tctr = tmp[ctr];
+    uint128_t tctrp1 = tmp[ctr + (uint32_t)1U];
+    uint64_t r0 = (uint64_t)tctr & (uint64_t)0x7ffffffffffffU;
+    uint128_t c = tctr >> (uint32_t)51U;
+    tmp[ctr] = (uint128_t)r0;
+    tmp[ctr + (uint32_t)1U] = tctrp1 + c;
+  }
+}
+
+inline static void Hacl_Bignum_Fmul_shift_reduce(uint64_t *output)
+{
+  uint64_t tmp = output[4U];
+  uint64_t b0;
+  {
+    uint32_t i;
+    for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+    {
+      uint32_t ctr = (uint32_t)5U - i - (uint32_t)1U;
+      uint64_t z = output[ctr - (uint32_t)1U];
+      output[ctr] = z;
+    }
+  }
+  output[0U] = tmp;
+  b0 = output[0U];
+  output[0U] = (uint64_t)19U * b0;
+}
+
+static void
+Hacl_Bignum_Fmul_mul_shift_reduce_(uint128_t *output, uint64_t *input, uint64_t *input2)
+{
+  uint32_t i;
+  uint64_t input2i;
+  {
+    uint32_t i0;
+    for (i0 = (uint32_t)0U; i0 < (uint32_t)4U; i0 = i0 + (uint32_t)1U)
+    {
+      uint64_t input2i0 = input2[i0];
+      Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i0);
+      Hacl_Bignum_Fmul_shift_reduce(input);
+    }
+  }
+  i = (uint32_t)4U;
+  input2i = input2[i];
+  Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i);
+}
+
+inline static void Hacl_Bignum_Fmul_fmul(uint64_t *output, uint64_t *input, uint64_t *input2)
+{
+  uint64_t tmp[5U] = { 0U };
+  memcpy(tmp, input, (uint32_t)5U * sizeof input[0U]);
+  KRML_CHECK_SIZE(sizeof (uint128_t), (uint32_t)5U);
+  {
+    uint128_t t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = (uint128_t)(uint64_t)0U;
+    }
+    {
+      uint128_t b4;
+      uint128_t b0;
+      uint128_t b4_;
+      uint128_t b0_;
+      uint64_t i0;
+      uint64_t i1;
+      uint64_t i0_;
+      uint64_t i1_;
+      Hacl_Bignum_Fmul_mul_shift_reduce_(t, tmp, input2);
+      Hacl_Bignum_Fproduct_carry_wide_(t);
+      b4 = t[4U];
+      b0 = t[0U];
+      b4_ = b4 & (uint128_t)(uint64_t)0x7ffffffffffffU;
+      b0_ = b0 + (uint128_t)(uint64_t)19U * (uint64_t)(b4 >> (uint32_t)51U);
+      t[4U] = b4_;
+      t[0U] = b0_;
+      Hacl_Bignum_Fproduct_copy_from_wide_(output, t);
+      i0 = output[0U];
+      i1 = output[1U];
+      i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+      i1_ = i1 + (i0 >> (uint32_t)51U);
+      output[0U] = i0_;
+      output[1U] = i1_;
+    }
+  }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare__(uint128_t *tmp, uint64_t *output)
+{
+  uint64_t r0 = output[0U];
+  uint64_t r1 = output[1U];
+  uint64_t r2 = output[2U];
+  uint64_t r3 = output[3U];
+  uint64_t r4 = output[4U];
+  uint64_t d0 = r0 * (uint64_t)2U;
+  uint64_t d1 = r1 * (uint64_t)2U;
+  uint64_t d2 = r2 * (uint64_t)2U * (uint64_t)19U;
+  uint64_t d419 = r4 * (uint64_t)19U;
+  uint64_t d4 = d419 * (uint64_t)2U;
+  uint128_t s0 = (uint128_t)r0 * r0 + (uint128_t)d4 * r1 + (uint128_t)d2 * r3;
+  uint128_t s1 = (uint128_t)d0 * r1 + (uint128_t)d4 * r2 + (uint128_t)(r3 * (uint64_t)19U) * r3;
+  uint128_t s2 = (uint128_t)d0 * r2 + (uint128_t)r1 * r1 + (uint128_t)d4 * r3;
+  uint128_t s3 = (uint128_t)d0 * r3 + (uint128_t)d1 * r2 + (uint128_t)r4 * d419;
+  uint128_t s4 = (uint128_t)d0 * r4 + (uint128_t)d1 * r3 + (uint128_t)r2 * r2;
+  tmp[0U] = s0;
+  tmp[1U] = s1;
+  tmp[2U] = s2;
+  tmp[3U] = s3;
+  tmp[4U] = s4;
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_(uint128_t *tmp, uint64_t *output)
+{
+  uint128_t b4;
+  uint128_t b0;
+  uint128_t b4_;
+  uint128_t b0_;
+  uint64_t i0;
+  uint64_t i1;
+  uint64_t i0_;
+  uint64_t i1_;
+  Hacl_Bignum_Fsquare_fsquare__(tmp, output);
+  Hacl_Bignum_Fproduct_carry_wide_(tmp);
+  b4 = tmp[4U];
+  b0 = tmp[0U];
+  b4_ = b4 & (uint128_t)(uint64_t)0x7ffffffffffffU;
+  b0_ = b0 + (uint128_t)(uint64_t)19U * (uint64_t)(b4 >> (uint32_t)51U);
+  tmp[4U] = b4_;
+  tmp[0U] = b0_;
+  Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+  i0 = output[0U];
+  i1 = output[1U];
+  i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+  i1_ = i1 + (i0 >> (uint32_t)51U);
+  output[0U] = i0_;
+  output[1U] = i1_;
+}
+
+static void
+Hacl_Bignum_Fsquare_fsquare_times_(uint64_t *input, uint128_t *tmp, uint32_t count1)
+{
+  uint32_t i;
+  Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+  for (i = (uint32_t)1U; i < count1; i = i + (uint32_t)1U)
+    Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+}
+
+inline static void
+Hacl_Bignum_Fsquare_fsquare_times(uint64_t *output, uint64_t *input, uint32_t count1)
+{
+  KRML_CHECK_SIZE(sizeof (uint128_t), (uint32_t)5U);
+  {
+    uint128_t t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = (uint128_t)(uint64_t)0U;
+    }
+    memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+    Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+  }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_times_inplace(uint64_t *output, uint32_t count1)
+{
+  KRML_CHECK_SIZE(sizeof (uint128_t), (uint32_t)5U);
+  {
+    uint128_t t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = (uint128_t)(uint64_t)0U;
+    }
+    Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+  }
+}
+
+inline static void Hacl_Bignum_Crecip_crecip(uint64_t *out, uint64_t *z)
+{
+  uint64_t buf[20U] = { 0U };
+  uint64_t *a0 = buf;
+  uint64_t *t00 = buf + (uint32_t)5U;
+  uint64_t *b0 = buf + (uint32_t)10U;
+  uint64_t *t01;
+  uint64_t *b1;
+  uint64_t *c0;
+  uint64_t *a;
+  uint64_t *t0;
+  uint64_t *b;
+  uint64_t *c;
+  Hacl_Bignum_Fsquare_fsquare_times(a0, z, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)2U);
+  Hacl_Bignum_Fmul_fmul(b0, t00, z);
+  Hacl_Bignum_Fmul_fmul(a0, b0, a0);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)1U);
+  Hacl_Bignum_Fmul_fmul(b0, t00, b0);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, b0, (uint32_t)5U);
+  t01 = buf + (uint32_t)5U;
+  b1 = buf + (uint32_t)10U;
+  c0 = buf + (uint32_t)15U;
+  Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)10U);
+  Hacl_Bignum_Fmul_fmul(c0, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, c0, (uint32_t)20U);
+  Hacl_Bignum_Fmul_fmul(t01, t01, c0);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t01, (uint32_t)10U);
+  Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)50U);
+  a = buf;
+  t0 = buf + (uint32_t)5U;
+  b = buf + (uint32_t)10U;
+  c = buf + (uint32_t)15U;
+  Hacl_Bignum_Fmul_fmul(c, t0, b);
+  Hacl_Bignum_Fsquare_fsquare_times(t0, c, (uint32_t)100U);
+  Hacl_Bignum_Fmul_fmul(t0, t0, c);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)50U);
+  Hacl_Bignum_Fmul_fmul(t0, t0, b);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)5U);
+  Hacl_Bignum_Fmul_fmul(out, t0, a);
+}
+
+inline static void Hacl_Bignum_fsum(uint64_t *a, uint64_t *b)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    uint64_t xi = a[i];
+    uint64_t yi = b[i];
+    a[i] = xi + yi;
+  }
+}
+
+inline static void Hacl_Bignum_fdifference(uint64_t *a, uint64_t *b)
+{
+  uint64_t tmp[5U] = { 0U };
+  uint64_t b0;
+  uint64_t b1;
+  uint64_t b2;
+  uint64_t b3;
+  uint64_t b4;
+  memcpy(tmp, b, (uint32_t)5U * sizeof b[0U]);
+  b0 = tmp[0U];
+  b1 = tmp[1U];
+  b2 = tmp[2U];
+  b3 = tmp[3U];
+  b4 = tmp[4U];
+  tmp[0U] = b0 + (uint64_t)0x3fffffffffff68U;
+  tmp[1U] = b1 + (uint64_t)0x3ffffffffffff8U;
+  tmp[2U] = b2 + (uint64_t)0x3ffffffffffff8U;
+  tmp[3U] = b3 + (uint64_t)0x3ffffffffffff8U;
+  tmp[4U] = b4 + (uint64_t)0x3ffffffffffff8U;
+  {
+    uint32_t i;
+    for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+    {
+      uint64_t xi = a[i];
+      uint64_t yi = tmp[i];
+      a[i] = yi - xi;
+    }
+  }
+}
+
+inline static void Hacl_Bignum_fscalar(uint64_t *output, uint64_t *b, uint64_t s)
+{
+  KRML_CHECK_SIZE(sizeof (uint128_t), (uint32_t)5U);
+  {
+    uint128_t tmp[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        tmp[_i] = (uint128_t)(uint64_t)0U;
+    }
+    {
+      uint128_t b4;
+      uint128_t b0;
+      uint128_t b4_;
+      uint128_t b0_;
+      {
+        uint32_t i;
+        for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+        {
+          uint64_t xi = b[i];
+          tmp[i] = (uint128_t)xi * s;
+        }
+      }
+      Hacl_Bignum_Fproduct_carry_wide_(tmp);
+      b4 = tmp[4U];
+      b0 = tmp[0U];
+      b4_ = b4 & (uint128_t)(uint64_t)0x7ffffffffffffU;
+      b0_ = b0 + (uint128_t)(uint64_t)19U * (uint64_t)(b4 >> (uint32_t)51U);
+      tmp[4U] = b4_;
+      tmp[0U] = b0_;
+      Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+    }
+  }
+}
+
+inline static void Hacl_Bignum_fmul(uint64_t *output, uint64_t *a, uint64_t *b)
+{
+  Hacl_Bignum_Fmul_fmul(output, a, b);
+}
+
+inline static void Hacl_Bignum_crecip(uint64_t *output, uint64_t *input)
+{
+  Hacl_Bignum_Crecip_crecip(output, input);
+}
+
+static void
+Hacl_EC_Point_swap_conditional_step(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+  uint32_t i = ctr - (uint32_t)1U;
+  uint64_t ai = a[i];
+  uint64_t bi = b[i];
+  uint64_t x = swap1 & (ai ^ bi);
+  uint64_t ai1 = ai ^ x;
+  uint64_t bi1 = bi ^ x;
+  a[i] = ai1;
+  b[i] = bi1;
+}
+
+static void
+Hacl_EC_Point_swap_conditional_(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+  if (!(ctr == (uint32_t)0U))
+  {
+    uint32_t i;
+    Hacl_EC_Point_swap_conditional_step(a, b, swap1, ctr);
+    i = ctr - (uint32_t)1U;
+    Hacl_EC_Point_swap_conditional_(a, b, swap1, i);
+  }
+}
+
+static void Hacl_EC_Point_swap_conditional(uint64_t *a, uint64_t *b, uint64_t iswap)
+{
+  uint64_t swap1 = (uint64_t)0U - iswap;
+  Hacl_EC_Point_swap_conditional_(a, b, swap1, (uint32_t)5U);
+  Hacl_EC_Point_swap_conditional_(a + (uint32_t)5U, b + (uint32_t)5U, swap1, (uint32_t)5U);
+}
+
+static void Hacl_EC_Point_copy(uint64_t *output, uint64_t *input)
+{
+  memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+  memcpy(output + (uint32_t)5U,
+    input + (uint32_t)5U,
+    (uint32_t)5U * sizeof (input + (uint32_t)5U)[0U]);
+}
+
+static void Hacl_EC_Format_fexpand(uint64_t *output, uint8_t *input)
+{
+  uint64_t i0 = load64_le(input);
+  uint8_t *x00 = input + (uint32_t)6U;
+  uint64_t i1 = load64_le(x00);
+  uint8_t *x01 = input + (uint32_t)12U;
+  uint64_t i2 = load64_le(x01);
+  uint8_t *x02 = input + (uint32_t)19U;
+  uint64_t i3 = load64_le(x02);
+  uint8_t *x0 = input + (uint32_t)24U;
+  uint64_t i4 = load64_le(x0);
+  uint64_t output0 = i0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t output1 = i1 >> (uint32_t)3U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output2 = i2 >> (uint32_t)6U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output3 = i3 >> (uint32_t)1U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output4 = i4 >> (uint32_t)12U & (uint64_t)0x7ffffffffffffU;
+  output[0U] = output0;
+  output[1U] = output1;
+  output[2U] = output2;
+  output[3U] = output3;
+  output[4U] = output4;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_pass(uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+  uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+  uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+  uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+  uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+  input[0U] = t0_;
+  input[1U] = t1__;
+  input[2U] = t2__;
+  input[3U] = t3__;
+  input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_full(uint64_t *input)
+{
+  Hacl_EC_Format_fcontract_first_carry_pass(input);
+  Hacl_Bignum_Modulo_carry_top(input);
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_pass(uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+  uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+  uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+  uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+  uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+  input[0U] = t0_;
+  input[1U] = t1__;
+  input[2U] = t2__;
+  input[3U] = t3__;
+  input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_full(uint64_t *input)
+{
+  uint64_t i0;
+  uint64_t i1;
+  uint64_t i0_;
+  uint64_t i1_;
+  Hacl_EC_Format_fcontract_second_carry_pass(input);
+  Hacl_Bignum_Modulo_carry_top(input);
+  i0 = input[0U];
+  i1 = input[1U];
+  i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+  i1_ = i1 + (i0 >> (uint32_t)51U);
+  input[0U] = i0_;
+  input[1U] = i1_;
+}
+
+static void Hacl_EC_Format_fcontract_trim(uint64_t *input)
+{
+  uint64_t a0 = input[0U];
+  uint64_t a1 = input[1U];
+  uint64_t a2 = input[2U];
+  uint64_t a3 = input[3U];
+  uint64_t a4 = input[4U];
+  uint64_t mask0 = FStar_UInt64_gte_mask(a0, (uint64_t)0x7ffffffffffedU);
+  uint64_t mask1 = FStar_UInt64_eq_mask(a1, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask2 = FStar_UInt64_eq_mask(a2, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask3 = FStar_UInt64_eq_mask(a3, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask4 = FStar_UInt64_eq_mask(a4, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask = (((mask0 & mask1) & mask2) & mask3) & mask4;
+  uint64_t a0_ = a0 - ((uint64_t)0x7ffffffffffedU & mask);
+  uint64_t a1_ = a1 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a2_ = a2 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a3_ = a3 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a4_ = a4 - ((uint64_t)0x7ffffffffffffU & mask);
+  input[0U] = a0_;
+  input[1U] = a1_;
+  input[2U] = a2_;
+  input[3U] = a3_;
+  input[4U] = a4_;
+}
+
+static void Hacl_EC_Format_fcontract_store(uint8_t *output, uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t o0 = t1 << (uint32_t)51U | t0;
+  uint64_t o1 = t2 << (uint32_t)38U | t1 >> (uint32_t)13U;
+  uint64_t o2 = t3 << (uint32_t)25U | t2 >> (uint32_t)26U;
+  uint64_t o3 = t4 << (uint32_t)12U | t3 >> (uint32_t)39U;
+  uint8_t *b0 = output;
+  uint8_t *b1 = output + (uint32_t)8U;
+  uint8_t *b2 = output + (uint32_t)16U;
+  uint8_t *b3 = output + (uint32_t)24U;
+  store64_le(b0, o0);
+  store64_le(b1, o1);
+  store64_le(b2, o2);
+  store64_le(b3, o3);
+}
+
+static void Hacl_EC_Format_fcontract(uint8_t *output, uint64_t *input)
+{
+  Hacl_EC_Format_fcontract_first_carry_full(input);
+  Hacl_EC_Format_fcontract_second_carry_full(input);
+  Hacl_EC_Format_fcontract_trim(input);
+  Hacl_EC_Format_fcontract_store(output, input);
+}
+
+static void Hacl_EC_Format_scalar_of_point(uint8_t *scalar, uint64_t *point)
+{
+  uint64_t *x = point;
+  uint64_t *z = point + (uint32_t)5U;
+  uint64_t buf[10U] = { 0U };
+  uint64_t *zmone = buf;
+  uint64_t *sc = buf + (uint32_t)5U;
+  Hacl_Bignum_crecip(zmone, z);
+  Hacl_Bignum_fmul(sc, x, zmone);
+  Hacl_EC_Format_fcontract(scalar, sc);
+}
+
+static void
+Hacl_EC_AddAndDouble_fmonty(
+  uint64_t *pp,
+  uint64_t *ppq,
+  uint64_t *p,
+  uint64_t *pq,
+  uint64_t *qmqp
+)
+{
+  uint64_t *qx = qmqp;
+  uint64_t *x2 = pp;
+  uint64_t *z2 = pp + (uint32_t)5U;
+  uint64_t *x3 = ppq;
+  uint64_t *z3 = ppq + (uint32_t)5U;
+  uint64_t *x = p;
+  uint64_t *z = p + (uint32_t)5U;
+  uint64_t *xprime = pq;
+  uint64_t *zprime = pq + (uint32_t)5U;
+  uint64_t buf[40U] = { 0U };
+  uint64_t *origx = buf;
+  uint64_t *origxprime0 = buf + (uint32_t)5U;
+  uint64_t *xxprime0 = buf + (uint32_t)25U;
+  uint64_t *zzprime0 = buf + (uint32_t)30U;
+  uint64_t *origxprime;
+  uint64_t *xx0;
+  uint64_t *zz0;
+  uint64_t *xxprime;
+  uint64_t *zzprime;
+  uint64_t *zzzprime;
+  uint64_t *zzz;
+  uint64_t *xx;
+  uint64_t *zz;
+  uint64_t scalar;
+  memcpy(origx, x, (uint32_t)5U * sizeof x[0U]);
+  Hacl_Bignum_fsum(x, z);
+  Hacl_Bignum_fdifference(z, origx);
+  memcpy(origxprime0, xprime, (uint32_t)5U * sizeof xprime[0U]);
+  Hacl_Bignum_fsum(xprime, zprime);
+  Hacl_Bignum_fdifference(zprime, origxprime0);
+  Hacl_Bignum_fmul(xxprime0, xprime, z);
+  Hacl_Bignum_fmul(zzprime0, x, zprime);
+  origxprime = buf + (uint32_t)5U;
+  xx0 = buf + (uint32_t)15U;
+  zz0 = buf + (uint32_t)20U;
+  xxprime = buf + (uint32_t)25U;
+  zzprime = buf + (uint32_t)30U;
+  zzzprime = buf + (uint32_t)35U;
+  memcpy(origxprime, xxprime, (uint32_t)5U * sizeof xxprime[0U]);
+  Hacl_Bignum_fsum(xxprime, zzprime);
+  Hacl_Bignum_fdifference(zzprime, origxprime);
+  Hacl_Bignum_Fsquare_fsquare_times(x3, xxprime, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(zzzprime, zzprime, (uint32_t)1U);
+  Hacl_Bignum_fmul(z3, zzzprime, qx);
+  Hacl_Bignum_Fsquare_fsquare_times(xx0, x, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(zz0, z, (uint32_t)1U);
+  zzz = buf + (uint32_t)10U;
+  xx = buf + (uint32_t)15U;
+  zz = buf + (uint32_t)20U;
+  Hacl_Bignum_fmul(x2, xx, zz);
+  Hacl_Bignum_fdifference(zz, xx);
+  scalar = (uint64_t)121665U;
+  Hacl_Bignum_fscalar(zzz, zz, scalar);
+  Hacl_Bignum_fsum(zzz, xx);
+  Hacl_Bignum_fmul(z2, zzz, zz);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt
+)
+{
+  uint64_t bit0 = (uint64_t)(byt >> (uint32_t)7U);
+  uint64_t bit;
+  Hacl_EC_Point_swap_conditional(nq, nqpq, bit0);
+  Hacl_EC_AddAndDouble_fmonty(nq2, nqpq2, nq, nqpq, q);
+  bit = (uint64_t)(byt >> (uint32_t)7U);
+  Hacl_EC_Point_swap_conditional(nq2, nqpq2, bit);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt
+)
+{
+  uint8_t byt1;
+  Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq, nqpq, nq2, nqpq2, q, byt);
+  byt1 = byt << (uint32_t)1U;
+  Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq2, nqpq2, nq, nqpq, q, byt1);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt,
+  uint32_t i
+)
+{
+  if (!(i == (uint32_t)0U))
+  {
+    uint32_t i_ = i - (uint32_t)1U;
+    uint8_t byt_;
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(nq, nqpq, nq2, nqpq2, q, byt);
+    byt_ = byt << (uint32_t)2U;
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byt_, i_);
+  }
+}
+
+static void
+Hacl_EC_Ladder_BigLoop_cmult_big_loop(
+  uint8_t *n1,
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint32_t i
+)
+{
+  if (!(i == (uint32_t)0U))
+  {
+    uint32_t i1 = i - (uint32_t)1U;
+    uint8_t byte = n1[i1];
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byte, (uint32_t)4U);
+    Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, i1);
+  }
+}
+
+static void Hacl_EC_Ladder_cmult(uint64_t *result, uint8_t *n1, uint64_t *q)
+{
+  uint64_t point_buf[40U] = { 0U };
+  uint64_t *nq = point_buf;
+  uint64_t *nqpq = point_buf + (uint32_t)10U;
+  uint64_t *nq2 = point_buf + (uint32_t)20U;
+  uint64_t *nqpq2 = point_buf + (uint32_t)30U;
+  Hacl_EC_Point_copy(nqpq, q);
+  nq[0U] = (uint64_t)1U;
+  Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, (uint32_t)32U);
+  Hacl_EC_Point_copy(result, nq);
+}
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint)
+{
+  uint64_t buf0[10U] = { 0U };
+  uint64_t *x0 = buf0;
+  uint64_t *z = buf0 + (uint32_t)5U;
+  uint64_t *q;
+  Hacl_EC_Format_fexpand(x0, basepoint);
+  z[0U] = (uint64_t)1U;
+  q = buf0;
+  {
+    uint8_t e[32U] = { 0U };
+    uint8_t e0;
+    uint8_t e31;
+    uint8_t e01;
+    uint8_t e311;
+    uint8_t e312;
+    uint8_t *scalar;
+    memcpy(e, secret, (uint32_t)32U * sizeof secret[0U]);
+    e0 = e[0U];
+    e31 = e[31U];
+    e01 = e0 & (uint8_t)248U;
+    e311 = e31 & (uint8_t)127U;
+    e312 = e311 | (uint8_t)64U;
+    e[0U] = e01;
+    e[31U] = e312;
+    scalar = e;
+    {
+      uint64_t buf[15U] = { 0U };
+      uint64_t *nq = buf;
+      uint64_t *x = nq;
+      x[0U] = (uint64_t)1U;
+      Hacl_EC_Ladder_cmult(nq, scalar, q);
+      Hacl_EC_Format_scalar_of_point(mypublic, nq);
+    }
+  }
+}
+

3rdparty/everest/library/Hacl_Curve25519_joined.c

@@ -0,0 +1,45 @@
+/*
+ *  Interface to code from Project Everest
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+
+#if defined(__SIZEOF_INT128__) && (__SIZEOF_INT128__ == 16)
+#define MBEDTLS_HAVE_INT128
+#endif
+
+#if defined(MBEDTLS_HAVE_INT128)
+#include "Hacl_Curve25519.c"
+#else
+#define KRML_VERIFIED_UINT128
+#include "kremlib/FStar_UInt128_extracted.c"
+#include "legacy/Hacl_Curve25519.c"
+#endif
+
+#include "kremlib/FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.c"
+
+#endif /* defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED) */
+

3rdparty/everest/library/everest.c

@@ -0,0 +1,111 @@
+/*
+ *  Interface to code from Project Everest
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of Mbed TLS (https://tls.mbed.org).
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include <string.h>
+
+#include "mbedtls/ecdh.h"
+
+#include "everest/x25519.h"
+#include "everest/everest.h"
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#else
+#define mbedtls_calloc calloc
+#define mbedtls_free   free
+#endif
+
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+
+int mbedtls_everest_setup( mbedtls_ecdh_context_everest *ctx, int grp_id )
+{
+    if( grp_id != MBEDTLS_ECP_DP_CURVE25519 )
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    mbedtls_x25519_init( &ctx->ctx );
+    return 0;
+}
+
+void mbedtls_everest_free( mbedtls_ecdh_context_everest *ctx )
+{
+    mbedtls_x25519_free( &ctx->ctx );
+}
+
+int mbedtls_everest_make_params( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    return mbedtls_x25519_make_params( x25519_ctx, olen, buf, blen, f_rng, p_rng );
+}
+
+int mbedtls_everest_read_params( mbedtls_ecdh_context_everest *ctx,
+                                 const unsigned char **buf,
+                                 const unsigned char *end )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    return mbedtls_x25519_read_params( x25519_ctx, buf, end );
+}
+
+int mbedtls_everest_get_params( mbedtls_ecdh_context_everest *ctx,
+                                const mbedtls_ecp_keypair *key,
+                                mbedtls_everest_ecdh_side side )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    mbedtls_x25519_ecdh_side s = side == MBEDTLS_EVEREST_ECDH_OURS ?
+                                            MBEDTLS_X25519_ECDH_OURS :
+                                            MBEDTLS_X25519_ECDH_THEIRS;
+    return mbedtls_x25519_get_params( x25519_ctx, key, s );
+}
+
+int mbedtls_everest_make_public( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    return mbedtls_x25519_make_public( x25519_ctx, olen, buf, blen, f_rng, p_rng );
+}
+
+int mbedtls_everest_read_public( mbedtls_ecdh_context_everest *ctx,
+                                 const unsigned char *buf, size_t blen )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    return mbedtls_x25519_read_public ( x25519_ctx, buf, blen );
+}
+
+int mbedtls_everest_calc_secret( mbedtls_ecdh_context_everest *ctx, size_t *olen,
+                                 unsigned char *buf, size_t blen,
+                                 int( *f_rng )( void *, unsigned char *, size_t ),
+                                 void *p_rng )
+{
+    mbedtls_x25519_context *x25519_ctx = &ctx->ctx;
+    return mbedtls_x25519_calc_secret( x25519_ctx, olen, buf, blen, f_rng, p_rng );
+}
+
+#endif /* MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED */
+

3rdparty/everest/library/kremlib/FStar_UInt128_extracted.c

@@ -0,0 +1,413 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: ../krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrB9w -minimal -fparentheses -fcurly-braces -fno-shadow -header copyright-header.txt -minimal -tmpdir extracted -warn-error +9+11 -skip-compilation -extract-uints -add-include <inttypes.h> -add-include "kremlib.h" -add-include "kremlin/internal/compat.h" extracted/prims.krml extracted/FStar_Pervasives_Native.krml extracted/FStar_Pervasives.krml extracted/FStar_Mul.krml extracted/FStar_Squash.krml extracted/FStar_Classical.krml extracted/FStar_StrongExcludedMiddle.krml extracted/FStar_FunctionalExtensionality.krml extracted/FStar_List_Tot_Base.krml extracted/FStar_List_Tot_Properties.krml extracted/FStar_List_Tot.krml extracted/FStar_Seq_Base.krml extracted/FStar_Seq_Properties.krml extracted/FStar_Seq.krml extracted/FStar_Math_Lib.krml extracted/FStar_Math_Lemmas.krml extracted/FStar_BitVector.krml extracted/FStar_UInt.krml extracted/FStar_UInt32.krml extracted/FStar_Int.krml extracted/FStar_Int16.krml extracted/FStar_Preorder.krml extracted/FStar_Ghost.krml extracted/FStar_ErasedLogic.krml extracted/FStar_UInt64.krml extracted/FStar_Set.krml extracted/FStar_PropositionalExtensionality.krml extracted/FStar_PredicateExtensionality.krml extracted/FStar_TSet.krml extracted/FStar_Monotonic_Heap.krml extracted/FStar_Heap.krml extracted/FStar_Map.krml extracted/FStar_Monotonic_HyperHeap.krml extracted/FStar_Monotonic_HyperStack.krml extracted/FStar_HyperStack.krml extracted/FStar_Monotonic_Witnessed.krml extracted/FStar_HyperStack_ST.krml extracted/FStar_HyperStack_All.krml extracted/FStar_Date.krml extracted/FStar_Universe.krml extracted/FStar_GSet.krml extracted/FStar_ModifiesGen.krml extracted/LowStar_Monotonic_Buffer.krml extracted/LowStar_Buffer.krml extracted/Spec_Loops.krml extracted/LowStar_BufferOps.krml extracted/C_Loops.krml extracted/FStar_UInt8.krml extracted/FStar_Kremlin_Endianness.krml extracted/FStar_UInt63.krml extracted/FStar_Exn.krml extracted/FStar_ST.krml extracted/FStar_All.krml extracted/FStar_Dyn.krml extracted/FStar_Int63.krml extracted/FStar_Int64.krml extracted/FStar_Int32.krml extracted/FStar_Int8.krml extracted/FStar_UInt16.krml extracted/FStar_Int_Cast.krml extracted/FStar_UInt128.krml extracted/C_Endianness.krml extracted/FStar_List.krml extracted/FStar_Float.krml extracted/FStar_IO.krml extracted/C.krml extracted/FStar_Char.krml extracted/FStar_String.krml extracted/LowStar_Modifies.krml extracted/C_String.krml extracted/FStar_Bytes.krml extracted/FStar_HyperStack_IO.krml extracted/C_Failure.krml extracted/TestLib.krml extracted/FStar_Int_Cast_Full.krml
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+#include "FStar_UInt128.h"
+#include "kremlin/c_endianness.h"
+#include "FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.h"
+
+uint64_t FStar_UInt128___proj__Mkuint128__item__low(FStar_UInt128_uint128 projectee)
+{
+  return projectee.low;
+}
+
+uint64_t FStar_UInt128___proj__Mkuint128__item__high(FStar_UInt128_uint128 projectee)
+{
+  return projectee.high;
+}
+
+static uint64_t FStar_UInt128_constant_time_carry(uint64_t a, uint64_t b)
+{
+  return (a ^ ((a ^ b) | ((a - b) ^ b))) >> (uint32_t)63U;
+}
+
+static uint64_t FStar_UInt128_carry(uint64_t a, uint64_t b)
+{
+  return FStar_UInt128_constant_time_carry(a, b);
+}
+
+FStar_UInt128_uint128 FStar_UInt128_add(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low + b.low, a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low) };
+  return flat;
+}
+
+FStar_UInt128_uint128
+FStar_UInt128_add_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low + b.low, a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low) };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_add_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low + b.low, a.high + b.high + FStar_UInt128_carry(a.low + b.low, b.low) };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_sub(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low - b.low, a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low) };
+  return flat;
+}
+
+FStar_UInt128_uint128
+FStar_UInt128_sub_underspec(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low - b.low, a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low) };
+  return flat;
+}
+
+static FStar_UInt128_uint128
+FStar_UInt128_sub_mod_impl(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat = { a.low - b.low, a.high - b.high - FStar_UInt128_carry(a.low, a.low - b.low) };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_sub_mod(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return FStar_UInt128_sub_mod_impl(a, b);
+}
+
+FStar_UInt128_uint128 FStar_UInt128_logand(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128 flat = { a.low & b.low, a.high & b.high };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_logxor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128 flat = { a.low ^ b.low, a.high ^ b.high };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_logor(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128 flat = { a.low | b.low, a.high | b.high };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_lognot(FStar_UInt128_uint128 a)
+{
+  FStar_UInt128_uint128 flat = { ~a.low, ~a.high };
+  return flat;
+}
+
+static uint32_t FStar_UInt128_u32_64 = (uint32_t)64U;
+
+static uint64_t FStar_UInt128_add_u64_shift_left(uint64_t hi, uint64_t lo, uint32_t s)
+{
+  return (hi << s) + (lo >> (FStar_UInt128_u32_64 - s));
+}
+
+static uint64_t FStar_UInt128_add_u64_shift_left_respec(uint64_t hi, uint64_t lo, uint32_t s)
+{
+  return FStar_UInt128_add_u64_shift_left(hi, lo, s);
+}
+
+static FStar_UInt128_uint128
+FStar_UInt128_shift_left_small(FStar_UInt128_uint128 a, uint32_t s)
+{
+  if (s == (uint32_t)0U)
+  {
+    return a;
+  }
+  else
+  {
+    FStar_UInt128_uint128
+    flat = { a.low << s, FStar_UInt128_add_u64_shift_left_respec(a.high, a.low, s) };
+    return flat;
+  }
+}
+
+static FStar_UInt128_uint128
+FStar_UInt128_shift_left_large(FStar_UInt128_uint128 a, uint32_t s)
+{
+  FStar_UInt128_uint128 flat = { (uint64_t)0U, a.low << (s - FStar_UInt128_u32_64) };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_shift_left(FStar_UInt128_uint128 a, uint32_t s)
+{
+  if (s < FStar_UInt128_u32_64)
+  {
+    return FStar_UInt128_shift_left_small(a, s);
+  }
+  else
+  {
+    return FStar_UInt128_shift_left_large(a, s);
+  }
+}
+
+static uint64_t FStar_UInt128_add_u64_shift_right(uint64_t hi, uint64_t lo, uint32_t s)
+{
+  return (lo >> s) + (hi << (FStar_UInt128_u32_64 - s));
+}
+
+static uint64_t FStar_UInt128_add_u64_shift_right_respec(uint64_t hi, uint64_t lo, uint32_t s)
+{
+  return FStar_UInt128_add_u64_shift_right(hi, lo, s);
+}
+
+static FStar_UInt128_uint128
+FStar_UInt128_shift_right_small(FStar_UInt128_uint128 a, uint32_t s)
+{
+  if (s == (uint32_t)0U)
+  {
+    return a;
+  }
+  else
+  {
+    FStar_UInt128_uint128
+    flat = { FStar_UInt128_add_u64_shift_right_respec(a.high, a.low, s), a.high >> s };
+    return flat;
+  }
+}
+
+static FStar_UInt128_uint128
+FStar_UInt128_shift_right_large(FStar_UInt128_uint128 a, uint32_t s)
+{
+  FStar_UInt128_uint128 flat = { a.high >> (s - FStar_UInt128_u32_64), (uint64_t)0U };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_shift_right(FStar_UInt128_uint128 a, uint32_t s)
+{
+  if (s < FStar_UInt128_u32_64)
+  {
+    return FStar_UInt128_shift_right_small(a, s);
+  }
+  else
+  {
+    return FStar_UInt128_shift_right_large(a, s);
+  }
+}
+
+bool FStar_UInt128_eq(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return a.low == b.low && a.high == b.high;
+}
+
+bool FStar_UInt128_gt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return a.high > b.high || (a.high == b.high && a.low > b.low);
+}
+
+bool FStar_UInt128_lt(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return a.high < b.high || (a.high == b.high && a.low < b.low);
+}
+
+bool FStar_UInt128_gte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return a.high > b.high || (a.high == b.high && a.low >= b.low);
+}
+
+bool FStar_UInt128_lte(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  return a.high < b.high || (a.high == b.high && a.low <= b.low);
+}
+
+FStar_UInt128_uint128 FStar_UInt128_eq_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat =
+    {
+      FStar_UInt64_eq_mask(a.low,
+        b.low)
+      & FStar_UInt64_eq_mask(a.high, b.high),
+      FStar_UInt64_eq_mask(a.low,
+        b.low)
+      & FStar_UInt64_eq_mask(a.high, b.high)
+    };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_gte_mask(FStar_UInt128_uint128 a, FStar_UInt128_uint128 b)
+{
+  FStar_UInt128_uint128
+  flat =
+    {
+      (FStar_UInt64_gte_mask(a.high, b.high) & ~FStar_UInt64_eq_mask(a.high, b.high))
+      | (FStar_UInt64_eq_mask(a.high, b.high) & FStar_UInt64_gte_mask(a.low, b.low)),
+      (FStar_UInt64_gte_mask(a.high, b.high) & ~FStar_UInt64_eq_mask(a.high, b.high))
+      | (FStar_UInt64_eq_mask(a.high, b.high) & FStar_UInt64_gte_mask(a.low, b.low))
+    };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_uint64_to_uint128(uint64_t a)
+{
+  FStar_UInt128_uint128 flat = { a, (uint64_t)0U };
+  return flat;
+}
+
+uint64_t FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 a)
+{
+  return a.low;
+}
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_add;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Question_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_add_underspec;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Plus_Percent_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_add_mod;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_sub;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Question_Hat)(
+  FStar_UInt128_uint128 x0,
+  FStar_UInt128_uint128 x1
+) = FStar_UInt128_sub_underspec;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Subtraction_Percent_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_sub_mod;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Amp_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_logand;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Hat_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_logxor;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Bar_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_logor;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Less_Less_Hat)(FStar_UInt128_uint128 x0, uint32_t x1) =
+  FStar_UInt128_shift_left;
+
+FStar_UInt128_uint128
+(*FStar_UInt128_op_Greater_Greater_Hat)(FStar_UInt128_uint128 x0, uint32_t x1) =
+  FStar_UInt128_shift_right;
+
+bool
+(*FStar_UInt128_op_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_eq;
+
+bool
+(*FStar_UInt128_op_Greater_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_gt;
+
+bool
+(*FStar_UInt128_op_Less_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_lt;
+
+bool
+(*FStar_UInt128_op_Greater_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_gte;
+
+bool
+(*FStar_UInt128_op_Less_Equals_Hat)(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1) =
+  FStar_UInt128_lte;
+
+static uint64_t FStar_UInt128_u64_mod_32(uint64_t a)
+{
+  return a & (uint64_t)0xffffffffU;
+}
+
+static uint32_t FStar_UInt128_u32_32 = (uint32_t)32U;
+
+static uint64_t FStar_UInt128_u32_combine(uint64_t hi, uint64_t lo)
+{
+  return lo + (hi << FStar_UInt128_u32_32);
+}
+
+FStar_UInt128_uint128 FStar_UInt128_mul32(uint64_t x, uint32_t y)
+{
+  FStar_UInt128_uint128
+  flat =
+    {
+      FStar_UInt128_u32_combine((x >> FStar_UInt128_u32_32)
+        * (uint64_t)y
+        + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> FStar_UInt128_u32_32),
+        FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * (uint64_t)y)),
+      ((x >> FStar_UInt128_u32_32)
+      * (uint64_t)y
+      + (FStar_UInt128_u64_mod_32(x) * (uint64_t)y >> FStar_UInt128_u32_32))
+      >> FStar_UInt128_u32_32
+    };
+  return flat;
+}
+
+typedef struct K___uint64_t_uint64_t_uint64_t_uint64_t_s
+{
+  uint64_t fst;
+  uint64_t snd;
+  uint64_t thd;
+  uint64_t f3;
+}
+K___uint64_t_uint64_t_uint64_t_uint64_t;
+
+static K___uint64_t_uint64_t_uint64_t_uint64_t
+FStar_UInt128_mul_wide_impl_t_(uint64_t x, uint64_t y)
+{
+  K___uint64_t_uint64_t_uint64_t_uint64_t
+  flat =
+    {
+      FStar_UInt128_u64_mod_32(x),
+      FStar_UInt128_u64_mod_32(FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y)),
+      x
+      >> FStar_UInt128_u32_32,
+      (x >> FStar_UInt128_u32_32)
+      * FStar_UInt128_u64_mod_32(y)
+      + (FStar_UInt128_u64_mod_32(x) * FStar_UInt128_u64_mod_32(y) >> FStar_UInt128_u32_32)
+    };
+  return flat;
+}
+
+static uint64_t FStar_UInt128_u32_combine_(uint64_t hi, uint64_t lo)
+{
+  return lo + (hi << FStar_UInt128_u32_32);
+}
+
+static FStar_UInt128_uint128 FStar_UInt128_mul_wide_impl(uint64_t x, uint64_t y)
+{
+  K___uint64_t_uint64_t_uint64_t_uint64_t scrut = FStar_UInt128_mul_wide_impl_t_(x, y);
+  uint64_t u1 = scrut.fst;
+  uint64_t w3 = scrut.snd;
+  uint64_t x_ = scrut.thd;
+  uint64_t t_ = scrut.f3;
+  FStar_UInt128_uint128
+  flat =
+    {
+      FStar_UInt128_u32_combine_(u1 * (y >> FStar_UInt128_u32_32) + FStar_UInt128_u64_mod_32(t_),
+        w3),
+      x_
+      * (y >> FStar_UInt128_u32_32)
+      + (t_ >> FStar_UInt128_u32_32)
+      + ((u1 * (y >> FStar_UInt128_u32_32) + FStar_UInt128_u64_mod_32(t_)) >> FStar_UInt128_u32_32)
+    };
+  return flat;
+}
+
+FStar_UInt128_uint128 FStar_UInt128_mul_wide(uint64_t x, uint64_t y)
+{
+  return FStar_UInt128_mul_wide_impl(x, y);
+}
+

3rdparty/everest/library/kremlib/FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.c

@@ -0,0 +1,100 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: ../krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrB9w -minimal -fparentheses -fcurly-braces -fno-shadow -header copyright-header.txt -minimal -tmpdir dist/minimal -skip-compilation -extract-uints -add-include <inttypes.h> -add-include <stdbool.h> -add-include "kremlin/internal/compat.h" -add-include "kremlin/internal/types.h" -bundle FStar.UInt64+FStar.UInt32+FStar.UInt16+FStar.UInt8=* extracted/prims.krml extracted/FStar_Pervasives_Native.krml extracted/FStar_Pervasives.krml extracted/FStar_Mul.krml extracted/FStar_Squash.krml extracted/FStar_Classical.krml extracted/FStar_StrongExcludedMiddle.krml extracted/FStar_FunctionalExtensionality.krml extracted/FStar_List_Tot_Base.krml extracted/FStar_List_Tot_Properties.krml extracted/FStar_List_Tot.krml extracted/FStar_Seq_Base.krml extracted/FStar_Seq_Properties.krml extracted/FStar_Seq.krml extracted/FStar_Math_Lib.krml extracted/FStar_Math_Lemmas.krml extracted/FStar_BitVector.krml extracted/FStar_UInt.krml extracted/FStar_UInt32.krml extracted/FStar_Int.krml extracted/FStar_Int16.krml extracted/FStar_Preorder.krml extracted/FStar_Ghost.krml extracted/FStar_ErasedLogic.krml extracted/FStar_UInt64.krml extracted/FStar_Set.krml extracted/FStar_PropositionalExtensionality.krml extracted/FStar_PredicateExtensionality.krml extracted/FStar_TSet.krml extracted/FStar_Monotonic_Heap.krml extracted/FStar_Heap.krml extracted/FStar_Map.krml extracted/FStar_Monotonic_HyperHeap.krml extracted/FStar_Monotonic_HyperStack.krml extracted/FStar_HyperStack.krml extracted/FStar_Monotonic_Witnessed.krml extracted/FStar_HyperStack_ST.krml extracted/FStar_HyperStack_All.krml extracted/FStar_Date.krml extracted/FStar_Universe.krml extracted/FStar_GSet.krml extracted/FStar_ModifiesGen.krml extracted/LowStar_Monotonic_Buffer.krml extracted/LowStar_Buffer.krml extracted/Spec_Loops.krml extracted/LowStar_BufferOps.krml extracted/C_Loops.krml extracted/FStar_UInt8.krml extracted/FStar_Kremlin_Endianness.krml extracted/FStar_UInt63.krml extracted/FStar_Exn.krml extracted/FStar_ST.krml extracted/FStar_All.krml extracted/FStar_Dyn.krml extracted/FStar_Int63.krml extracted/FStar_Int64.krml extracted/FStar_Int32.krml extracted/FStar_Int8.krml extracted/FStar_UInt16.krml extracted/FStar_Int_Cast.krml extracted/FStar_UInt128.krml extracted/C_Endianness.krml extracted/FStar_List.krml extracted/FStar_Float.krml extracted/FStar_IO.krml extracted/C.krml extracted/FStar_Char.krml extracted/FStar_String.krml extracted/LowStar_Modifies.krml extracted/C_String.krml extracted/FStar_Bytes.krml extracted/FStar_HyperStack_IO.krml extracted/C_Failure.krml extracted/TestLib.krml extracted/FStar_Int_Cast_Full.krml
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+#include "FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.h"
+
+uint64_t FStar_UInt64_eq_mask(uint64_t a, uint64_t b)
+{
+  uint64_t x = a ^ b;
+  uint64_t minus_x = ~x + (uint64_t)1U;
+  uint64_t x_or_minus_x = x | minus_x;
+  uint64_t xnx = x_or_minus_x >> (uint32_t)63U;
+  return xnx - (uint64_t)1U;
+}
+
+uint64_t FStar_UInt64_gte_mask(uint64_t a, uint64_t b)
+{
+  uint64_t x = a;
+  uint64_t y = b;
+  uint64_t x_xor_y = x ^ y;
+  uint64_t x_sub_y = x - y;
+  uint64_t x_sub_y_xor_y = x_sub_y ^ y;
+  uint64_t q = x_xor_y | x_sub_y_xor_y;
+  uint64_t x_xor_q = x ^ q;
+  uint64_t x_xor_q_ = x_xor_q >> (uint32_t)63U;
+  return x_xor_q_ - (uint64_t)1U;
+}
+
+uint32_t FStar_UInt32_eq_mask(uint32_t a, uint32_t b)
+{
+  uint32_t x = a ^ b;
+  uint32_t minus_x = ~x + (uint32_t)1U;
+  uint32_t x_or_minus_x = x | minus_x;
+  uint32_t xnx = x_or_minus_x >> (uint32_t)31U;
+  return xnx - (uint32_t)1U;
+}
+
+uint32_t FStar_UInt32_gte_mask(uint32_t a, uint32_t b)
+{
+  uint32_t x = a;
+  uint32_t y = b;
+  uint32_t x_xor_y = x ^ y;
+  uint32_t x_sub_y = x - y;
+  uint32_t x_sub_y_xor_y = x_sub_y ^ y;
+  uint32_t q = x_xor_y | x_sub_y_xor_y;
+  uint32_t x_xor_q = x ^ q;
+  uint32_t x_xor_q_ = x_xor_q >> (uint32_t)31U;
+  return x_xor_q_ - (uint32_t)1U;
+}
+
+uint16_t FStar_UInt16_eq_mask(uint16_t a, uint16_t b)
+{
+  uint16_t x = a ^ b;
+  uint16_t minus_x = ~x + (uint16_t)1U;
+  uint16_t x_or_minus_x = x | minus_x;
+  uint16_t xnx = x_or_minus_x >> (uint32_t)15U;
+  return xnx - (uint16_t)1U;
+}
+
+uint16_t FStar_UInt16_gte_mask(uint16_t a, uint16_t b)
+{
+  uint16_t x = a;
+  uint16_t y = b;
+  uint16_t x_xor_y = x ^ y;
+  uint16_t x_sub_y = x - y;
+  uint16_t x_sub_y_xor_y = x_sub_y ^ y;
+  uint16_t q = x_xor_y | x_sub_y_xor_y;
+  uint16_t x_xor_q = x ^ q;
+  uint16_t x_xor_q_ = x_xor_q >> (uint32_t)15U;
+  return x_xor_q_ - (uint16_t)1U;
+}
+
+uint8_t FStar_UInt8_eq_mask(uint8_t a, uint8_t b)
+{
+  uint8_t x = a ^ b;
+  uint8_t minus_x = ~x + (uint8_t)1U;
+  uint8_t x_or_minus_x = x | minus_x;
+  uint8_t xnx = x_or_minus_x >> (uint32_t)7U;
+  return xnx - (uint8_t)1U;
+}
+
+uint8_t FStar_UInt8_gte_mask(uint8_t a, uint8_t b)
+{
+  uint8_t x = a;
+  uint8_t y = b;
+  uint8_t x_xor_y = x ^ y;
+  uint8_t x_sub_y = x - y;
+  uint8_t x_sub_y_xor_y = x_sub_y ^ y;
+  uint8_t q = x_xor_y | x_sub_y_xor_y;
+  uint8_t x_xor_q = x ^ q;
+  uint8_t x_xor_q_ = x_xor_q >> (uint32_t)7U;
+  return x_xor_q_ - (uint8_t)1U;
+}
+

3rdparty/everest/library/legacy/Hacl_Curve25519.c

@@ -0,0 +1,805 @@
+/* Copyright (c) INRIA and Microsoft Corporation. All rights reserved.
+   Licensed under the Apache 2.0 License. */
+
+/* This file was generated by KreMLin <https://github.com/FStarLang/kremlin>
+ * KreMLin invocation: /mnt/e/everest/verify/kremlin/krml -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -fc89 -fparentheses -fno-shadow -header /mnt/e/everest/verify/hdrcLh -minimal -I /mnt/e/everest/verify/hacl-star/code/lib/kremlin -I /mnt/e/everest/verify/kremlin/kremlib/compat -I /mnt/e/everest/verify/hacl-star/specs -I /mnt/e/everest/verify/hacl-star/specs/old -I . -ccopt -march=native -verbose -ldopt -flto -tmpdir x25519-c -I ../bignum -bundle Hacl.Curve25519=* -minimal -add-include "kremlib.h" -skip-compilation x25519-c/out.krml -o x25519-c/Hacl_Curve25519.c
+ * F* version: 059db0c8
+ * KreMLin version: 916c37ac
+ */
+
+
+#include "Hacl_Curve25519.h"
+
+extern uint64_t FStar_UInt64_eq_mask(uint64_t x0, uint64_t x1);
+
+extern uint64_t FStar_UInt64_gte_mask(uint64_t x0, uint64_t x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_add(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_add_mod(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128
+FStar_UInt128_logand(FStar_UInt128_uint128 x0, FStar_UInt128_uint128 x1);
+
+extern FStar_UInt128_uint128 FStar_UInt128_shift_right(FStar_UInt128_uint128 x0, uint32_t x1);
+
+extern FStar_UInt128_uint128 FStar_UInt128_uint64_to_uint128(uint64_t x0);
+
+extern uint64_t FStar_UInt128_uint128_to_uint64(FStar_UInt128_uint128 x0);
+
+extern FStar_UInt128_uint128 FStar_UInt128_mul_wide(uint64_t x0, uint64_t x1);
+
+static void Hacl_Bignum_Modulo_carry_top(uint64_t *b)
+{
+  uint64_t b4 = b[4U];
+  uint64_t b0 = b[0U];
+  uint64_t b4_ = b4 & (uint64_t)0x7ffffffffffffU;
+  uint64_t b0_ = b0 + (uint64_t)19U * (b4 >> (uint32_t)51U);
+  b[4U] = b4_;
+  b[0U] = b0_;
+}
+
+inline static void
+Hacl_Bignum_Fproduct_copy_from_wide_(uint64_t *output, FStar_UInt128_uint128 *input)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    FStar_UInt128_uint128 xi = input[i];
+    output[i] = FStar_UInt128_uint128_to_uint64(xi);
+  }
+}
+
+inline static void
+Hacl_Bignum_Fproduct_sum_scalar_multiplication_(
+  FStar_UInt128_uint128 *output,
+  uint64_t *input,
+  uint64_t s
+)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    FStar_UInt128_uint128 xi = output[i];
+    uint64_t yi = input[i];
+    output[i] = FStar_UInt128_add_mod(xi, FStar_UInt128_mul_wide(yi, s));
+  }
+}
+
+inline static void Hacl_Bignum_Fproduct_carry_wide_(FStar_UInt128_uint128 *tmp)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+  {
+    uint32_t ctr = i;
+    FStar_UInt128_uint128 tctr = tmp[ctr];
+    FStar_UInt128_uint128 tctrp1 = tmp[ctr + (uint32_t)1U];
+    uint64_t r0 = FStar_UInt128_uint128_to_uint64(tctr) & (uint64_t)0x7ffffffffffffU;
+    FStar_UInt128_uint128 c = FStar_UInt128_shift_right(tctr, (uint32_t)51U);
+    tmp[ctr] = FStar_UInt128_uint64_to_uint128(r0);
+    tmp[ctr + (uint32_t)1U] = FStar_UInt128_add(tctrp1, c);
+  }
+}
+
+inline static void Hacl_Bignum_Fmul_shift_reduce(uint64_t *output)
+{
+  uint64_t tmp = output[4U];
+  uint64_t b0;
+  {
+    uint32_t i;
+    for (i = (uint32_t)0U; i < (uint32_t)4U; i = i + (uint32_t)1U)
+    {
+      uint32_t ctr = (uint32_t)5U - i - (uint32_t)1U;
+      uint64_t z = output[ctr - (uint32_t)1U];
+      output[ctr] = z;
+    }
+  }
+  output[0U] = tmp;
+  b0 = output[0U];
+  output[0U] = (uint64_t)19U * b0;
+}
+
+static void
+Hacl_Bignum_Fmul_mul_shift_reduce_(
+  FStar_UInt128_uint128 *output,
+  uint64_t *input,
+  uint64_t *input2
+)
+{
+  uint32_t i;
+  uint64_t input2i;
+  {
+    uint32_t i0;
+    for (i0 = (uint32_t)0U; i0 < (uint32_t)4U; i0 = i0 + (uint32_t)1U)
+    {
+      uint64_t input2i0 = input2[i0];
+      Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i0);
+      Hacl_Bignum_Fmul_shift_reduce(input);
+    }
+  }
+  i = (uint32_t)4U;
+  input2i = input2[i];
+  Hacl_Bignum_Fproduct_sum_scalar_multiplication_(output, input, input2i);
+}
+
+inline static void Hacl_Bignum_Fmul_fmul(uint64_t *output, uint64_t *input, uint64_t *input2)
+{
+  uint64_t tmp[5U] = { 0U };
+  memcpy(tmp, input, (uint32_t)5U * sizeof input[0U]);
+  KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+  {
+    FStar_UInt128_uint128 t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+    }
+    {
+      FStar_UInt128_uint128 b4;
+      FStar_UInt128_uint128 b0;
+      FStar_UInt128_uint128 b4_;
+      FStar_UInt128_uint128 b0_;
+      uint64_t i0;
+      uint64_t i1;
+      uint64_t i0_;
+      uint64_t i1_;
+      Hacl_Bignum_Fmul_mul_shift_reduce_(t, tmp, input2);
+      Hacl_Bignum_Fproduct_carry_wide_(t);
+      b4 = t[4U];
+      b0 = t[0U];
+      b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+      b0_ =
+        FStar_UInt128_add(b0,
+          FStar_UInt128_mul_wide((uint64_t)19U,
+            FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+      t[4U] = b4_;
+      t[0U] = b0_;
+      Hacl_Bignum_Fproduct_copy_from_wide_(output, t);
+      i0 = output[0U];
+      i1 = output[1U];
+      i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+      i1_ = i1 + (i0 >> (uint32_t)51U);
+      output[0U] = i0_;
+      output[1U] = i1_;
+    }
+  }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare__(FStar_UInt128_uint128 *tmp, uint64_t *output)
+{
+  uint64_t r0 = output[0U];
+  uint64_t r1 = output[1U];
+  uint64_t r2 = output[2U];
+  uint64_t r3 = output[3U];
+  uint64_t r4 = output[4U];
+  uint64_t d0 = r0 * (uint64_t)2U;
+  uint64_t d1 = r1 * (uint64_t)2U;
+  uint64_t d2 = r2 * (uint64_t)2U * (uint64_t)19U;
+  uint64_t d419 = r4 * (uint64_t)19U;
+  uint64_t d4 = d419 * (uint64_t)2U;
+  FStar_UInt128_uint128
+  s0 =
+    FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(r0, r0),
+        FStar_UInt128_mul_wide(d4, r1)),
+      FStar_UInt128_mul_wide(d2, r3));
+  FStar_UInt128_uint128
+  s1 =
+    FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r1),
+        FStar_UInt128_mul_wide(d4, r2)),
+      FStar_UInt128_mul_wide(r3 * (uint64_t)19U, r3));
+  FStar_UInt128_uint128
+  s2 =
+    FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r2),
+        FStar_UInt128_mul_wide(r1, r1)),
+      FStar_UInt128_mul_wide(d4, r3));
+  FStar_UInt128_uint128
+  s3 =
+    FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r3),
+        FStar_UInt128_mul_wide(d1, r2)),
+      FStar_UInt128_mul_wide(r4, d419));
+  FStar_UInt128_uint128
+  s4 =
+    FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_mul_wide(d0, r4),
+        FStar_UInt128_mul_wide(d1, r3)),
+      FStar_UInt128_mul_wide(r2, r2));
+  tmp[0U] = s0;
+  tmp[1U] = s1;
+  tmp[2U] = s2;
+  tmp[3U] = s3;
+  tmp[4U] = s4;
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_(FStar_UInt128_uint128 *tmp, uint64_t *output)
+{
+  FStar_UInt128_uint128 b4;
+  FStar_UInt128_uint128 b0;
+  FStar_UInt128_uint128 b4_;
+  FStar_UInt128_uint128 b0_;
+  uint64_t i0;
+  uint64_t i1;
+  uint64_t i0_;
+  uint64_t i1_;
+  Hacl_Bignum_Fsquare_fsquare__(tmp, output);
+  Hacl_Bignum_Fproduct_carry_wide_(tmp);
+  b4 = tmp[4U];
+  b0 = tmp[0U];
+  b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+  b0_ =
+    FStar_UInt128_add(b0,
+      FStar_UInt128_mul_wide((uint64_t)19U,
+        FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+  tmp[4U] = b4_;
+  tmp[0U] = b0_;
+  Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+  i0 = output[0U];
+  i1 = output[1U];
+  i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+  i1_ = i1 + (i0 >> (uint32_t)51U);
+  output[0U] = i0_;
+  output[1U] = i1_;
+}
+
+static void
+Hacl_Bignum_Fsquare_fsquare_times_(
+  uint64_t *input,
+  FStar_UInt128_uint128 *tmp,
+  uint32_t count1
+)
+{
+  uint32_t i;
+  Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+  for (i = (uint32_t)1U; i < count1; i = i + (uint32_t)1U)
+    Hacl_Bignum_Fsquare_fsquare_(tmp, input);
+}
+
+inline static void
+Hacl_Bignum_Fsquare_fsquare_times(uint64_t *output, uint64_t *input, uint32_t count1)
+{
+  KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+  {
+    FStar_UInt128_uint128 t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+    }
+    memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+    Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+  }
+}
+
+inline static void Hacl_Bignum_Fsquare_fsquare_times_inplace(uint64_t *output, uint32_t count1)
+{
+  KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+  {
+    FStar_UInt128_uint128 t[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        t[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+    }
+    Hacl_Bignum_Fsquare_fsquare_times_(output, t, count1);
+  }
+}
+
+inline static void Hacl_Bignum_Crecip_crecip(uint64_t *out, uint64_t *z)
+{
+  uint64_t buf[20U] = { 0U };
+  uint64_t *a0 = buf;
+  uint64_t *t00 = buf + (uint32_t)5U;
+  uint64_t *b0 = buf + (uint32_t)10U;
+  uint64_t *t01;
+  uint64_t *b1;
+  uint64_t *c0;
+  uint64_t *a;
+  uint64_t *t0;
+  uint64_t *b;
+  uint64_t *c;
+  Hacl_Bignum_Fsquare_fsquare_times(a0, z, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)2U);
+  Hacl_Bignum_Fmul_fmul(b0, t00, z);
+  Hacl_Bignum_Fmul_fmul(a0, b0, a0);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, a0, (uint32_t)1U);
+  Hacl_Bignum_Fmul_fmul(b0, t00, b0);
+  Hacl_Bignum_Fsquare_fsquare_times(t00, b0, (uint32_t)5U);
+  t01 = buf + (uint32_t)5U;
+  b1 = buf + (uint32_t)10U;
+  c0 = buf + (uint32_t)15U;
+  Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)10U);
+  Hacl_Bignum_Fmul_fmul(c0, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, c0, (uint32_t)20U);
+  Hacl_Bignum_Fmul_fmul(t01, t01, c0);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t01, (uint32_t)10U);
+  Hacl_Bignum_Fmul_fmul(b1, t01, b1);
+  Hacl_Bignum_Fsquare_fsquare_times(t01, b1, (uint32_t)50U);
+  a = buf;
+  t0 = buf + (uint32_t)5U;
+  b = buf + (uint32_t)10U;
+  c = buf + (uint32_t)15U;
+  Hacl_Bignum_Fmul_fmul(c, t0, b);
+  Hacl_Bignum_Fsquare_fsquare_times(t0, c, (uint32_t)100U);
+  Hacl_Bignum_Fmul_fmul(t0, t0, c);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)50U);
+  Hacl_Bignum_Fmul_fmul(t0, t0, b);
+  Hacl_Bignum_Fsquare_fsquare_times_inplace(t0, (uint32_t)5U);
+  Hacl_Bignum_Fmul_fmul(out, t0, a);
+}
+
+inline static void Hacl_Bignum_fsum(uint64_t *a, uint64_t *b)
+{
+  uint32_t i;
+  for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+  {
+    uint64_t xi = a[i];
+    uint64_t yi = b[i];
+    a[i] = xi + yi;
+  }
+}
+
+inline static void Hacl_Bignum_fdifference(uint64_t *a, uint64_t *b)
+{
+  uint64_t tmp[5U] = { 0U };
+  uint64_t b0;
+  uint64_t b1;
+  uint64_t b2;
+  uint64_t b3;
+  uint64_t b4;
+  memcpy(tmp, b, (uint32_t)5U * sizeof b[0U]);
+  b0 = tmp[0U];
+  b1 = tmp[1U];
+  b2 = tmp[2U];
+  b3 = tmp[3U];
+  b4 = tmp[4U];
+  tmp[0U] = b0 + (uint64_t)0x3fffffffffff68U;
+  tmp[1U] = b1 + (uint64_t)0x3ffffffffffff8U;
+  tmp[2U] = b2 + (uint64_t)0x3ffffffffffff8U;
+  tmp[3U] = b3 + (uint64_t)0x3ffffffffffff8U;
+  tmp[4U] = b4 + (uint64_t)0x3ffffffffffff8U;
+  {
+    uint32_t i;
+    for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+    {
+      uint64_t xi = a[i];
+      uint64_t yi = tmp[i];
+      a[i] = yi - xi;
+    }
+  }
+}
+
+inline static void Hacl_Bignum_fscalar(uint64_t *output, uint64_t *b, uint64_t s)
+{
+  KRML_CHECK_SIZE(sizeof (FStar_UInt128_uint128), (uint32_t)5U);
+  {
+    FStar_UInt128_uint128 tmp[5U];
+    {
+      uint32_t _i;
+      for (_i = 0U; _i < (uint32_t)5U; ++_i)
+        tmp[_i] = FStar_UInt128_uint64_to_uint128((uint64_t)0U);
+    }
+    {
+      FStar_UInt128_uint128 b4;
+      FStar_UInt128_uint128 b0;
+      FStar_UInt128_uint128 b4_;
+      FStar_UInt128_uint128 b0_;
+      {
+        uint32_t i;
+        for (i = (uint32_t)0U; i < (uint32_t)5U; i = i + (uint32_t)1U)
+        {
+          uint64_t xi = b[i];
+          tmp[i] = FStar_UInt128_mul_wide(xi, s);
+        }
+      }
+      Hacl_Bignum_Fproduct_carry_wide_(tmp);
+      b4 = tmp[4U];
+      b0 = tmp[0U];
+      b4_ = FStar_UInt128_logand(b4, FStar_UInt128_uint64_to_uint128((uint64_t)0x7ffffffffffffU));
+      b0_ =
+        FStar_UInt128_add(b0,
+          FStar_UInt128_mul_wide((uint64_t)19U,
+            FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(b4, (uint32_t)51U))));
+      tmp[4U] = b4_;
+      tmp[0U] = b0_;
+      Hacl_Bignum_Fproduct_copy_from_wide_(output, tmp);
+    }
+  }
+}
+
+inline static void Hacl_Bignum_fmul(uint64_t *output, uint64_t *a, uint64_t *b)
+{
+  Hacl_Bignum_Fmul_fmul(output, a, b);
+}
+
+inline static void Hacl_Bignum_crecip(uint64_t *output, uint64_t *input)
+{
+  Hacl_Bignum_Crecip_crecip(output, input);
+}
+
+static void
+Hacl_EC_Point_swap_conditional_step(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+  uint32_t i = ctr - (uint32_t)1U;
+  uint64_t ai = a[i];
+  uint64_t bi = b[i];
+  uint64_t x = swap1 & (ai ^ bi);
+  uint64_t ai1 = ai ^ x;
+  uint64_t bi1 = bi ^ x;
+  a[i] = ai1;
+  b[i] = bi1;
+}
+
+static void
+Hacl_EC_Point_swap_conditional_(uint64_t *a, uint64_t *b, uint64_t swap1, uint32_t ctr)
+{
+  if (!(ctr == (uint32_t)0U))
+  {
+    uint32_t i;
+    Hacl_EC_Point_swap_conditional_step(a, b, swap1, ctr);
+    i = ctr - (uint32_t)1U;
+    Hacl_EC_Point_swap_conditional_(a, b, swap1, i);
+  }
+}
+
+static void Hacl_EC_Point_swap_conditional(uint64_t *a, uint64_t *b, uint64_t iswap)
+{
+  uint64_t swap1 = (uint64_t)0U - iswap;
+  Hacl_EC_Point_swap_conditional_(a, b, swap1, (uint32_t)5U);
+  Hacl_EC_Point_swap_conditional_(a + (uint32_t)5U, b + (uint32_t)5U, swap1, (uint32_t)5U);
+}
+
+static void Hacl_EC_Point_copy(uint64_t *output, uint64_t *input)
+{
+  memcpy(output, input, (uint32_t)5U * sizeof input[0U]);
+  memcpy(output + (uint32_t)5U,
+    input + (uint32_t)5U,
+    (uint32_t)5U * sizeof (input + (uint32_t)5U)[0U]);
+}
+
+static void Hacl_EC_Format_fexpand(uint64_t *output, uint8_t *input)
+{
+  uint64_t i0 = load64_le(input);
+  uint8_t *x00 = input + (uint32_t)6U;
+  uint64_t i1 = load64_le(x00);
+  uint8_t *x01 = input + (uint32_t)12U;
+  uint64_t i2 = load64_le(x01);
+  uint8_t *x02 = input + (uint32_t)19U;
+  uint64_t i3 = load64_le(x02);
+  uint8_t *x0 = input + (uint32_t)24U;
+  uint64_t i4 = load64_le(x0);
+  uint64_t output0 = i0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t output1 = i1 >> (uint32_t)3U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output2 = i2 >> (uint32_t)6U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output3 = i3 >> (uint32_t)1U & (uint64_t)0x7ffffffffffffU;
+  uint64_t output4 = i4 >> (uint32_t)12U & (uint64_t)0x7ffffffffffffU;
+  output[0U] = output0;
+  output[1U] = output1;
+  output[2U] = output2;
+  output[3U] = output3;
+  output[4U] = output4;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_pass(uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+  uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+  uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+  uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+  uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+  input[0U] = t0_;
+  input[1U] = t1__;
+  input[2U] = t2__;
+  input[3U] = t3__;
+  input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_first_carry_full(uint64_t *input)
+{
+  Hacl_EC_Format_fcontract_first_carry_pass(input);
+  Hacl_Bignum_Modulo_carry_top(input);
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_pass(uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t t1_ = t1 + (t0 >> (uint32_t)51U);
+  uint64_t t0_ = t0 & (uint64_t)0x7ffffffffffffU;
+  uint64_t t2_ = t2 + (t1_ >> (uint32_t)51U);
+  uint64_t t1__ = t1_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t3_ = t3 + (t2_ >> (uint32_t)51U);
+  uint64_t t2__ = t2_ & (uint64_t)0x7ffffffffffffU;
+  uint64_t t4_ = t4 + (t3_ >> (uint32_t)51U);
+  uint64_t t3__ = t3_ & (uint64_t)0x7ffffffffffffU;
+  input[0U] = t0_;
+  input[1U] = t1__;
+  input[2U] = t2__;
+  input[3U] = t3__;
+  input[4U] = t4_;
+}
+
+static void Hacl_EC_Format_fcontract_second_carry_full(uint64_t *input)
+{
+  uint64_t i0;
+  uint64_t i1;
+  uint64_t i0_;
+  uint64_t i1_;
+  Hacl_EC_Format_fcontract_second_carry_pass(input);
+  Hacl_Bignum_Modulo_carry_top(input);
+  i0 = input[0U];
+  i1 = input[1U];
+  i0_ = i0 & (uint64_t)0x7ffffffffffffU;
+  i1_ = i1 + (i0 >> (uint32_t)51U);
+  input[0U] = i0_;
+  input[1U] = i1_;
+}
+
+static void Hacl_EC_Format_fcontract_trim(uint64_t *input)
+{
+  uint64_t a0 = input[0U];
+  uint64_t a1 = input[1U];
+  uint64_t a2 = input[2U];
+  uint64_t a3 = input[3U];
+  uint64_t a4 = input[4U];
+  uint64_t mask0 = FStar_UInt64_gte_mask(a0, (uint64_t)0x7ffffffffffedU);
+  uint64_t mask1 = FStar_UInt64_eq_mask(a1, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask2 = FStar_UInt64_eq_mask(a2, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask3 = FStar_UInt64_eq_mask(a3, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask4 = FStar_UInt64_eq_mask(a4, (uint64_t)0x7ffffffffffffU);
+  uint64_t mask = (((mask0 & mask1) & mask2) & mask3) & mask4;
+  uint64_t a0_ = a0 - ((uint64_t)0x7ffffffffffedU & mask);
+  uint64_t a1_ = a1 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a2_ = a2 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a3_ = a3 - ((uint64_t)0x7ffffffffffffU & mask);
+  uint64_t a4_ = a4 - ((uint64_t)0x7ffffffffffffU & mask);
+  input[0U] = a0_;
+  input[1U] = a1_;
+  input[2U] = a2_;
+  input[3U] = a3_;
+  input[4U] = a4_;
+}
+
+static void Hacl_EC_Format_fcontract_store(uint8_t *output, uint64_t *input)
+{
+  uint64_t t0 = input[0U];
+  uint64_t t1 = input[1U];
+  uint64_t t2 = input[2U];
+  uint64_t t3 = input[3U];
+  uint64_t t4 = input[4U];
+  uint64_t o0 = t1 << (uint32_t)51U | t0;
+  uint64_t o1 = t2 << (uint32_t)38U | t1 >> (uint32_t)13U;
+  uint64_t o2 = t3 << (uint32_t)25U | t2 >> (uint32_t)26U;
+  uint64_t o3 = t4 << (uint32_t)12U | t3 >> (uint32_t)39U;
+  uint8_t *b0 = output;
+  uint8_t *b1 = output + (uint32_t)8U;
+  uint8_t *b2 = output + (uint32_t)16U;
+  uint8_t *b3 = output + (uint32_t)24U;
+  store64_le(b0, o0);
+  store64_le(b1, o1);
+  store64_le(b2, o2);
+  store64_le(b3, o3);
+}
+
+static void Hacl_EC_Format_fcontract(uint8_t *output, uint64_t *input)
+{
+  Hacl_EC_Format_fcontract_first_carry_full(input);
+  Hacl_EC_Format_fcontract_second_carry_full(input);
+  Hacl_EC_Format_fcontract_trim(input);
+  Hacl_EC_Format_fcontract_store(output, input);
+}
+
+static void Hacl_EC_Format_scalar_of_point(uint8_t *scalar, uint64_t *point)
+{
+  uint64_t *x = point;
+  uint64_t *z = point + (uint32_t)5U;
+  uint64_t buf[10U] = { 0U };
+  uint64_t *zmone = buf;
+  uint64_t *sc = buf + (uint32_t)5U;
+  Hacl_Bignum_crecip(zmone, z);
+  Hacl_Bignum_fmul(sc, x, zmone);
+  Hacl_EC_Format_fcontract(scalar, sc);
+}
+
+static void
+Hacl_EC_AddAndDouble_fmonty(
+  uint64_t *pp,
+  uint64_t *ppq,
+  uint64_t *p,
+  uint64_t *pq,
+  uint64_t *qmqp
+)
+{
+  uint64_t *qx = qmqp;
+  uint64_t *x2 = pp;
+  uint64_t *z2 = pp + (uint32_t)5U;
+  uint64_t *x3 = ppq;
+  uint64_t *z3 = ppq + (uint32_t)5U;
+  uint64_t *x = p;
+  uint64_t *z = p + (uint32_t)5U;
+  uint64_t *xprime = pq;
+  uint64_t *zprime = pq + (uint32_t)5U;
+  uint64_t buf[40U] = { 0U };
+  uint64_t *origx = buf;
+  uint64_t *origxprime0 = buf + (uint32_t)5U;
+  uint64_t *xxprime0 = buf + (uint32_t)25U;
+  uint64_t *zzprime0 = buf + (uint32_t)30U;
+  uint64_t *origxprime;
+  uint64_t *xx0;
+  uint64_t *zz0;
+  uint64_t *xxprime;
+  uint64_t *zzprime;
+  uint64_t *zzzprime;
+  uint64_t *zzz;
+  uint64_t *xx;
+  uint64_t *zz;
+  uint64_t scalar;
+  memcpy(origx, x, (uint32_t)5U * sizeof x[0U]);
+  Hacl_Bignum_fsum(x, z);
+  Hacl_Bignum_fdifference(z, origx);
+  memcpy(origxprime0, xprime, (uint32_t)5U * sizeof xprime[0U]);
+  Hacl_Bignum_fsum(xprime, zprime);
+  Hacl_Bignum_fdifference(zprime, origxprime0);
+  Hacl_Bignum_fmul(xxprime0, xprime, z);
+  Hacl_Bignum_fmul(zzprime0, x, zprime);
+  origxprime = buf + (uint32_t)5U;
+  xx0 = buf + (uint32_t)15U;
+  zz0 = buf + (uint32_t)20U;
+  xxprime = buf + (uint32_t)25U;
+  zzprime = buf + (uint32_t)30U;
+  zzzprime = buf + (uint32_t)35U;
+  memcpy(origxprime, xxprime, (uint32_t)5U * sizeof xxprime[0U]);
+  Hacl_Bignum_fsum(xxprime, zzprime);
+  Hacl_Bignum_fdifference(zzprime, origxprime);
+  Hacl_Bignum_Fsquare_fsquare_times(x3, xxprime, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(zzzprime, zzprime, (uint32_t)1U);
+  Hacl_Bignum_fmul(z3, zzzprime, qx);
+  Hacl_Bignum_Fsquare_fsquare_times(xx0, x, (uint32_t)1U);
+  Hacl_Bignum_Fsquare_fsquare_times(zz0, z, (uint32_t)1U);
+  zzz = buf + (uint32_t)10U;
+  xx = buf + (uint32_t)15U;
+  zz = buf + (uint32_t)20U;
+  Hacl_Bignum_fmul(x2, xx, zz);
+  Hacl_Bignum_fdifference(zz, xx);
+  scalar = (uint64_t)121665U;
+  Hacl_Bignum_fscalar(zzz, zz, scalar);
+  Hacl_Bignum_fsum(zzz, xx);
+  Hacl_Bignum_fmul(z2, zzz, zz);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt
+)
+{
+  uint64_t bit0 = (uint64_t)(byt >> (uint32_t)7U);
+  uint64_t bit;
+  Hacl_EC_Point_swap_conditional(nq, nqpq, bit0);
+  Hacl_EC_AddAndDouble_fmonty(nq2, nqpq2, nq, nqpq, q);
+  bit = (uint64_t)(byt >> (uint32_t)7U);
+  Hacl_EC_Point_swap_conditional(nq2, nqpq2, bit);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt
+)
+{
+  uint8_t byt1;
+  Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq, nqpq, nq2, nqpq2, q, byt);
+  byt1 = byt << (uint32_t)1U;
+  Hacl_EC_Ladder_SmallLoop_cmult_small_loop_step(nq2, nqpq2, nq, nqpq, q, byt1);
+}
+
+static void
+Hacl_EC_Ladder_SmallLoop_cmult_small_loop(
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint8_t byt,
+  uint32_t i
+)
+{
+  if (!(i == (uint32_t)0U))
+  {
+    uint32_t i_ = i - (uint32_t)1U;
+    uint8_t byt_;
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop_double_step(nq, nqpq, nq2, nqpq2, q, byt);
+    byt_ = byt << (uint32_t)2U;
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byt_, i_);
+  }
+}
+
+static void
+Hacl_EC_Ladder_BigLoop_cmult_big_loop(
+  uint8_t *n1,
+  uint64_t *nq,
+  uint64_t *nqpq,
+  uint64_t *nq2,
+  uint64_t *nqpq2,
+  uint64_t *q,
+  uint32_t i
+)
+{
+  if (!(i == (uint32_t)0U))
+  {
+    uint32_t i1 = i - (uint32_t)1U;
+    uint8_t byte = n1[i1];
+    Hacl_EC_Ladder_SmallLoop_cmult_small_loop(nq, nqpq, nq2, nqpq2, q, byte, (uint32_t)4U);
+    Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, i1);
+  }
+}
+
+static void Hacl_EC_Ladder_cmult(uint64_t *result, uint8_t *n1, uint64_t *q)
+{
+  uint64_t point_buf[40U] = { 0U };
+  uint64_t *nq = point_buf;
+  uint64_t *nqpq = point_buf + (uint32_t)10U;
+  uint64_t *nq2 = point_buf + (uint32_t)20U;
+  uint64_t *nqpq2 = point_buf + (uint32_t)30U;
+  Hacl_EC_Point_copy(nqpq, q);
+  nq[0U] = (uint64_t)1U;
+  Hacl_EC_Ladder_BigLoop_cmult_big_loop(n1, nq, nqpq, nq2, nqpq2, q, (uint32_t)32U);
+  Hacl_EC_Point_copy(result, nq);
+}
+
+void Hacl_Curve25519_crypto_scalarmult(uint8_t *mypublic, uint8_t *secret, uint8_t *basepoint)
+{
+  uint64_t buf0[10U] = { 0U };
+  uint64_t *x0 = buf0;
+  uint64_t *z = buf0 + (uint32_t)5U;
+  uint64_t *q;
+  Hacl_EC_Format_fexpand(x0, basepoint);
+  z[0U] = (uint64_t)1U;
+  q = buf0;
+  {
+    uint8_t e[32U] = { 0U };
+    uint8_t e0;
+    uint8_t e31;
+    uint8_t e01;
+    uint8_t e311;
+    uint8_t e312;
+    uint8_t *scalar;
+    memcpy(e, secret, (uint32_t)32U * sizeof secret[0U]);
+    e0 = e[0U];
+    e31 = e[31U];
+    e01 = e0 & (uint8_t)248U;
+    e311 = e31 & (uint8_t)127U;
+    e312 = e311 | (uint8_t)64U;
+    e[0U] = e01;
+    e[31U] = e312;
+    scalar = e;
+    {
+      uint64_t buf[15U] = { 0U };
+      uint64_t *nq = buf;
+      uint64_t *x = nq;
+      x[0U] = (uint64_t)1U;
+      Hacl_EC_Ladder_cmult(nq, scalar, q);
+      Hacl_EC_Format_scalar_of_point(mypublic, nq);
+    }
+  }
+}
+

3rdparty/everest/library/x25519.c

@@ -0,0 +1,190 @@
+/*
+ *  ECDH with curve-optimized implementation multiplexing
+ *
+ *  Copyright 2016-2018 INRIA and Microsoft Corporation
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_ECDH_C) && defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+
+#include <mbedtls/ecdh.h>
+
+#if !(defined(__SIZEOF_INT128__) && (__SIZEOF_INT128__ == 16))
+#define KRML_VERIFIED_UINT128
+#endif
+
+#include <Hacl_Curve25519.h>
+#include <mbedtls/platform_util.h>
+
+#include "x25519.h"
+
+#include <string.h>
+
+/*
+ * Initialize context
+ */
+void mbedtls_x25519_init( mbedtls_x25519_context *ctx )
+{
+    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x25519_context ) );
+}
+
+/*
+ * Free context
+ */
+void mbedtls_x25519_free( mbedtls_x25519_context *ctx )
+{
+    if( ctx == NULL )
+        return;
+
+    mbedtls_platform_zeroize( ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES );
+    mbedtls_platform_zeroize( ctx->peer_point, MBEDTLS_X25519_KEY_SIZE_BYTES );
+}
+
+int mbedtls_x25519_make_params( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng )
+{
+    int ret = 0;
+
+    uint8_t base[MBEDTLS_X25519_KEY_SIZE_BYTES] = {0};
+
+    if( ( ret = f_rng( p_rng, ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES ) ) != 0 )
+        return ret;
+
+    *olen = MBEDTLS_X25519_KEY_SIZE_BYTES + 4;
+    if( blen < *olen )
+        return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
+
+    *buf++ = MBEDTLS_ECP_TLS_NAMED_CURVE;
+    *buf++ = MBEDTLS_ECP_TLS_CURVE25519 >> 8;
+    *buf++ = MBEDTLS_ECP_TLS_CURVE25519 & 0xFF;
+    *buf++ = MBEDTLS_X25519_KEY_SIZE_BYTES;
+
+    base[0] = 9;
+    Hacl_Curve25519_crypto_scalarmult( buf, ctx->our_secret, base );
+
+    base[0] = 0;
+    if( memcmp( buf, base, MBEDTLS_X25519_KEY_SIZE_BYTES) == 0 )
+        return MBEDTLS_ERR_ECP_RANDOM_FAILED;
+
+    return( 0 );
+}
+
+int mbedtls_x25519_read_params( mbedtls_x25519_context *ctx,
+                        const unsigned char **buf, const unsigned char *end )
+{
+    if( end - *buf < MBEDTLS_X25519_KEY_SIZE_BYTES + 1 )
+        return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+
+    if( ( *(*buf)++ != MBEDTLS_X25519_KEY_SIZE_BYTES ) )
+        return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+
+    memcpy( ctx->peer_point, *buf, MBEDTLS_X25519_KEY_SIZE_BYTES );
+    *buf += MBEDTLS_X25519_KEY_SIZE_BYTES;
+    return( 0 );
+}
+
+int mbedtls_x25519_get_params( mbedtls_x25519_context *ctx, const mbedtls_ecp_keypair *key,
+                               mbedtls_x25519_ecdh_side side )
+{
+    size_t olen = 0;
+
+    switch( side ) {
+    case MBEDTLS_X25519_ECDH_THEIRS:
+        return mbedtls_ecp_point_write_binary( &key->grp, &key->Q, MBEDTLS_ECP_PF_COMPRESSED, &olen, ctx->peer_point, MBEDTLS_X25519_KEY_SIZE_BYTES );
+    case MBEDTLS_X25519_ECDH_OURS:
+        return mbedtls_mpi_write_binary_le( &key->d, ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES );
+    default:
+        return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+    }
+}
+
+int mbedtls_x25519_calc_secret( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng )
+{
+    /* f_rng and p_rng are not used here because this implementation does not
+       need blinding since it has constant trace. */
+    (( void )f_rng);
+    (( void )p_rng);
+
+    *olen = MBEDTLS_X25519_KEY_SIZE_BYTES;
+
+    if( blen < *olen )
+        return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
+
+    Hacl_Curve25519_crypto_scalarmult( buf, ctx->our_secret, ctx->peer_point);
+
+    /* Wipe the DH secret and don't let the peer chose a small subgroup point */
+    mbedtls_platform_zeroize( ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES );
+
+    if( memcmp( buf, ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES) == 0 )
+        return MBEDTLS_ERR_ECP_RANDOM_FAILED;
+
+    return( 0 );
+}
+
+int mbedtls_x25519_make_public( mbedtls_x25519_context *ctx, size_t *olen,
+                        unsigned char *buf, size_t blen,
+                        int( *f_rng )(void *, unsigned char *, size_t),
+                        void *p_rng )
+{
+    int ret = 0;
+    unsigned char base[MBEDTLS_X25519_KEY_SIZE_BYTES] = { 0 };
+
+    if( ctx == NULL )
+        return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
+
+    if( ( ret = f_rng( p_rng, ctx->our_secret, MBEDTLS_X25519_KEY_SIZE_BYTES ) ) != 0 )
+        return ret;
+
+    *olen = MBEDTLS_X25519_KEY_SIZE_BYTES + 1;
+    if( blen < *olen )
+        return(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
+    *buf++ = MBEDTLS_X25519_KEY_SIZE_BYTES;
+
+    base[0] = 9;
+    Hacl_Curve25519_crypto_scalarmult( buf, ctx->our_secret, base );
+
+    base[0] = 0;
+    if( memcmp( buf, base, MBEDTLS_X25519_KEY_SIZE_BYTES ) == 0 )
+        return MBEDTLS_ERR_ECP_RANDOM_FAILED;
+
+    return( ret );
+}
+
+int mbedtls_x25519_read_public( mbedtls_x25519_context *ctx,
+                        const unsigned char *buf, size_t blen )
+{
+    if( blen < MBEDTLS_X25519_KEY_SIZE_BYTES + 1 )
+        return(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL);
+    if( (*buf++ != MBEDTLS_X25519_KEY_SIZE_BYTES) )
+        return(MBEDTLS_ERR_ECP_BAD_INPUT_DATA);
+    memcpy( ctx->peer_point, buf, MBEDTLS_X25519_KEY_SIZE_BYTES );
+    return( 0 );
+}
+
+
+#endif /* MBEDTLS_ECDH_C && MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED */

CMakeLists.txt

@@ -179,9 +179,15 @@ endif()
 include_directories(include/)
 include_directories(library/)
 
-add_subdirectory(library)
 add_subdirectory(include)
 
+add_subdirectory(3rdparty)
+include_directories(${thirdparty_inc})
+list(APPEND libs ${thirdparty_lib})
+add_definitions(${thirdparty_def})
+
+add_subdirectory(library)
+
 if(ENABLE_PROGRAMS)
     add_subdirectory(programs)
 endif()

include/mbedtls/check_config.h

@@ -125,6 +125,11 @@
 #error "MBEDTLS_ECP_RESTARTABLE defined, but not MBEDTLS_ECDH_LEGACY_CONTEXT"
 #endif
 
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)           && \
+    defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
+#error "MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED defined, but MBEDTLS_ECDH_LEGACY_CONTEXT not disabled"
+#endif
+
 #if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C)
 #error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites"
 #endif

include/mbedtls/config.h

@@ -2078,6 +2078,15 @@
  */
 //#define MBEDTLS_PLATFORM_GMTIME_R_ALT
 
+/**
+ * Enable the verified implementations of ECDH primitives from Project Everest
+ * (currently only Curve25519). This feature changes the layout of ECDH
+ * contexts and therefore is a compatibility break for applications that access
+ * fields of a mbedtls_ecdh_context structure directly. See also
+ * MBEDTLS_ECDH_LEGACY_CONTEXT in include/mbedtls/ecdh.h.
+ */
+//#define MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
+
 /* \} name SECTION: Customisation configuration options */
 
 /* Target and application specific configurations

include/mbedtls/ecdh.h

@@ -42,6 +42,11 @@
 
 #include "mbedtls/ecp.h"
 
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+#undef MBEDTLS_ECDH_LEGACY_CONTEXT
+#include "everest/everest.h"
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -66,6 +71,9 @@ typedef enum
 {
     MBEDTLS_ECDH_VARIANT_NONE = 0,   /*!< Implementation not defined. */
     MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0,/*!< The default Mbed TLS implementation */
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+    MBEDTLS_ECDH_VARIANT_EVEREST     /*!< Everest implementation */
+#endif
 } mbedtls_ecdh_variant;
 
 /**
@@ -119,6 +127,9 @@ typedef struct mbedtls_ecdh_context
     union
     {
         mbedtls_ecdh_context_mbed   mbed_ecdh;
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        mbedtls_ecdh_context_everest everest_ecdh;
+#endif
     } ctx;                      /*!< Implementation-specific context. The
                                   context in use is specified by the \c var
                                   field. */
@@ -133,6 +144,15 @@ typedef struct mbedtls_ecdh_context
 }
 mbedtls_ecdh_context;
 
+/**
+ * \brief          Check whether a given group can be used for ECDH.
+ *
+ * \param gid      The ECP group ID to check.
+ *
+ * \return         \c 1 if the group can be used, \c 0 otherwise
+ */
+int mbedtls_ecdh_can_do( mbedtls_ecp_group_id gid );
+
 /**
  * \brief           This function generates an ECDH keypair on an elliptic
  *                  curve.

include/mbedtls/ecdsa.h

@@ -125,6 +125,16 @@ typedef void mbedtls_ecdsa_restart_ctx;
 
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
+/**
+ * \brief          This function checks whether a given group can be used
+ *                 for ECDSA.
+ *
+ * \param gid      The ECP group ID to check.
+ *
+ * \return         \c 1 if the group can be used, \c 0 otherwise
+ */
+int mbedtls_ecdsa_can_do( mbedtls_ecp_group_id gid );
+
 /**
  * \brief           This function computes the ECDSA signature of a
  *                  previously-hashed message.

include/mbedtls/ecp.h

@@ -437,6 +437,12 @@ mbedtls_ecp_curve_type mbedtls_ecp_get_type( const mbedtls_ecp_group *grp );
  *                  mbedtls_ecp_curve_info() for all supported curves in order
  *                  of preference.
  *
+ * \note            This function returns information about all curves
+ *                  supported by the library. Some curves may not be
+ *                  supported for all algorithms. Call mbedtls_ecdh_can_do()
+ *                  or mbedtls_ecdsa_can_do() to check if a curve is
+ *                  supported for ECDH or ECDSA.
+ *
  * \return          A statically allocated array. The last entry is 0.
  */
 const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list( void );
@@ -446,6 +452,12 @@ const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list( void );
  *                  identifiers of all supported curves in the order of
  *                  preference.
  *
+ * \note            This function returns information about all curves
+ *                  supported by the library. Some curves may not be
+ *                  supported for all algorithms. Call mbedtls_ecdh_can_do()
+ *                  or mbedtls_ecdsa_can_do() to check if a curve is
+ *                  supported for ECDH or ECDSA.
+ *
  * \return          A statically allocated array,
  *                  terminated with MBEDTLS_ECP_DP_NONE.
  */

library/CMakeLists.txt

@@ -94,6 +94,8 @@ set(src_crypto
 )
 endif()
 
+list(APPEND src_crypto ${thirdparty_src})
+
 if(CMAKE_COMPILER_IS_GNUCC)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wmissing-declarations -Wmissing-prototypes")
 endif(CMAKE_COMPILER_IS_GNUCC)

library/Makefile

@@ -101,6 +101,10 @@ OBJS_CRYPTO += version.o
 OBJS_CRYPTO += version_features.o
 endif
 
+include ../3rdparty/Makefile.inc
+LOCAL_CFLAGS+=$(THIRDPARTY_INCLUDES)
+OBJS_CRYPTO+=$(THIRDPARTY_CRYPTO_OBJECTS)
+
 .SILENT:
 
 .PHONY: all static shared clean
@@ -148,8 +152,9 @@ libmbedcrypto.dll: $(OBJS_CRYPTO)
 
 clean:
 ifndef WINDOWS
-	rm -f *.o libmbed*
+	rm -f *.o libmbed* $(OBJS_CRYPTO)
 else
 	if exist *.o del /Q /F *.o
 	if exist libmbed* del /Q /F libmbed*
+	if exist $(OBJS_CRYPTO) del /Q /F $(OBJS_CRYPTO)
 endif

library/ecdh.c

@@ -59,6 +59,13 @@ static mbedtls_ecp_group_id mbedtls_ecdh_grp_id(
 #endif
 }
 
+int mbedtls_ecdh_can_do( mbedtls_ecp_group_id gid )
+{
+    /* At this time, all groups support ECDH. */
+    (void) gid;
+    return( 1 );
+}
+
 #if !defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
 /*
  * Generate public key (restartable version)
@@ -215,6 +222,13 @@ int mbedtls_ecdh_setup( mbedtls_ecdh_context *ctx, mbedtls_ecp_group_id grp_id )
 #else
     switch( grp_id )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECP_DP_CURVE25519:
+            ctx->point_format = MBEDTLS_ECP_PF_COMPRESSED;
+            ctx->var = MBEDTLS_ECDH_VARIANT_EVEREST;
+            ctx->grp_id = grp_id;
+            return( mbedtls_everest_setup( &ctx->ctx.everest_ecdh, grp_id ) );
+#endif
         default:
             ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
             ctx->var = MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0;
@@ -266,6 +280,11 @@ void mbedtls_ecdh_free( mbedtls_ecdh_context *ctx )
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            mbedtls_everest_free( &ctx->ctx.everest_ecdh );
+            break;
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             ecdh_free_internal( &ctx->ctx.mbed_ecdh );
             break;
@@ -331,7 +350,7 @@ static int ecdh_make_params_internal( mbedtls_ecdh_context_mbed *ctx,
 }
 
 /*
- * Setup and write the ServerKeyExhange parameters (RFC 4492)
+ * Setup and write the ServerKeyExchange parameters (RFC 4492)
  *      struct {
  *          ECParameters    curve_params;
  *          ECPoint         public;
@@ -360,6 +379,11 @@ int mbedtls_ecdh_make_params( mbedtls_ecdh_context *ctx, size_t *olen,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            return( mbedtls_everest_make_params( &ctx->ctx.everest_ecdh, olen,
+                                                 buf, blen, f_rng, p_rng ) );
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_make_params_internal( &ctx->ctx.mbed_ecdh, olen,
                                                ctx->point_format, buf, blen,
@@ -409,6 +433,11 @@ int mbedtls_ecdh_read_params( mbedtls_ecdh_context *ctx,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            return( mbedtls_everest_read_params( &ctx->ctx.everest_ecdh,
+                                                 buf, end) );
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_read_params_internal( &ctx->ctx.mbed_ecdh,
                                                buf, end ) );
@@ -473,6 +502,16 @@ int mbedtls_ecdh_get_params( mbedtls_ecdh_context *ctx,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+        {
+            mbedtls_everest_ecdh_side s = side == MBEDTLS_ECDH_OURS ?
+                                                   MBEDTLS_EVEREST_ECDH_OURS :
+                                                   MBEDTLS_EVEREST_ECDH_THEIRS;
+            return( mbedtls_everest_get_params( &ctx->ctx.everest_ecdh,
+                                                key, s) );
+        }
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_get_params_internal( &ctx->ctx.mbed_ecdh,
                                               key, side ) );
@@ -544,6 +583,11 @@ int mbedtls_ecdh_make_public( mbedtls_ecdh_context *ctx, size_t *olen,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            return( mbedtls_everest_make_public( &ctx->ctx.everest_ecdh, olen,
+                                                 buf, blen, f_rng, p_rng ) );
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_make_public_internal( &ctx->ctx.mbed_ecdh, olen,
                                                ctx->point_format, buf, blen,
@@ -585,6 +629,11 @@ int mbedtls_ecdh_read_public( mbedtls_ecdh_context *ctx,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            return( mbedtls_everest_read_public( &ctx->ctx.everest_ecdh,
+                                                 buf, blen ) );
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_read_public_internal( &ctx->ctx.mbed_ecdh,
                                                        buf, blen ) );
@@ -667,6 +716,11 @@ int mbedtls_ecdh_calc_secret( mbedtls_ecdh_context *ctx, size_t *olen,
 #else
     switch( ctx->var )
     {
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+        case MBEDTLS_ECDH_VARIANT_EVEREST:
+            return( mbedtls_everest_calc_secret( &ctx->ctx.everest_ecdh, olen,
+                                                 buf, blen, f_rng, p_rng ) );
+#endif
         case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
             return( ecdh_calc_secret_internal( &ctx->ctx.mbed_ecdh, olen, buf,
                                                blen, f_rng, p_rng,

library/ecdsa.c

@@ -263,7 +263,7 @@ static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
     mbedtls_mpi *pk = &k, *pr = r;
 
     /* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */
-    if( grp->N.p == NULL )
+    if( ! mbedtls_ecdsa_can_do( grp->id ) || grp->N.p == NULL )
         return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
 
     /* Make sure d is in range 1..n-1 */
@@ -378,6 +378,20 @@ cleanup:
     return( ret );
 }
 
+int mbedtls_ecdsa_can_do( mbedtls_ecp_group_id gid )
+{
+    switch( gid )
+    {
+#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
+        case MBEDTLS_ECP_DP_CURVE25519: return 0;
+#endif
+#ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
+        case MBEDTLS_ECP_DP_CURVE448: return 0;
+#endif
+    default: return 1;
+    }
+}
+
 /*
  * Compute ECDSA signature of a hashed message
  */
@@ -502,7 +516,7 @@ static int ecdsa_verify_restartable( mbedtls_ecp_group *grp,
     mbedtls_mpi_init( &u1 ); mbedtls_mpi_init( &u2 );
 
     /* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */
-    if( grp->N.p == NULL )
+    if( ! mbedtls_ecdsa_can_do( grp->id ) || grp->N.p == NULL )
         return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
 
     ECDSA_RS_ENTER( ver );

library/ecp.c

@@ -366,7 +366,7 @@ int mbedtls_ecp_check_budget( const mbedtls_ecp_group *grp,
 /*
  * List of supported curves:
  *  - internal ID
- *  - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2)
+ *  - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2, RFC 8446 sec. 4.2.7)
  *  - size in bits
  *  - readable name
  *
@@ -409,6 +409,9 @@ static const mbedtls_ecp_curve_info ecp_supported_curves[] =
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
     { MBEDTLS_ECP_DP_SECP192K1,    18,     192,    "secp192k1"         },
+#endif
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) && defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+    { MBEDTLS_ECP_DP_CURVE25519,   29,     256,    "x25519"            },
 #endif
     { MBEDTLS_ECP_DP_NONE,          0,     0,      NULL                },
 };

programs/Makefile

@@ -11,6 +11,9 @@ LOCAL_CXXFLAGS = $(WARNING_CXXFLAGS) -I../include -D_FILE_OFFSET_BITS=64
 LOCAL_LDFLAGS = -L../library 			\
 		-lmbedcrypto$(SHARED_SUFFIX)
 
+include ../3rdparty/Makefile.inc
+LOCAL_CFLAGS+=$(THIRDPARTY_INCLUDES)
+
 ifndef SHARED
 DEP=../library/libmbedcrypto.a
 else

programs/test/benchmark.c

@@ -25,18 +25,13 @@
 #include MBEDTLS_CONFIG_FILE
 #endif
 
-#if defined(MBEDTLS_PLATFORM_C)
 #include "mbedtls/platform.h"
-#else
+#if !defined(MBEDTLS_PLATFORM_C)
 #include <stdio.h>
 #include <stdlib.h>
 #define mbedtls_exit       exit
 #define mbedtls_printf     printf
-#define mbedtls_snprintf   snprintf
 #define mbedtls_free       free
-#define mbedtls_exit            exit
-#define MBEDTLS_EXIT_SUCCESS    EXIT_SUCCESS
-#define MBEDTLS_EXIT_FAILURE    EXIT_FAILURE
 #endif
 
 #if !defined(MBEDTLS_TIMING_C)
@@ -97,7 +92,7 @@ int main( void )
 /*
  * Size to use for the alloc buffer if MEMORY_BUFFER_ALLOC_C is defined.
  */
-#define HEAP_SIZE       (1u << 16)  // 64k
+#define HEAP_SIZE       (1u << 16)  /* 64k */
 
 #define BUFSIZE         1024
 #define HEADER_FORMAT   "  %-24s :  "
@@ -190,7 +185,12 @@ do {                                                                    \
         CODE;                                                           \
     }                                                                   \
                                                                         \
-    if( ret != 0 )                                                      \
+    if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED )               \
+    {                                                                   \
+        mbedtls_printf( "Feature Not Supported. Skipping.\n" );         \
+        ret = 0;                                                        \
+    }                                                                   \
+    else if( ret != 0 )                                                 \
     {                                                                   \
         PRINT_ERROR;                                                    \
     }                                                                   \
@@ -225,6 +225,18 @@ static int myrand( void *rng_state, unsigned char *output, size_t len )
     return( 0 );
 }
 
+#define CHECK_AND_CONTINUE( R )                                         \
+    {                                                                   \
+        int CHECK_AND_CONTINUE_ret = ( R );                             \
+        if( CHECK_AND_CONTINUE_ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED ) { \
+            mbedtls_printf( "Feature not supported. Skipping.\n" );     \
+            continue;                                                   \
+        }                                                               \
+        else if( CHECK_AND_CONTINUE_ret != 0 ) {                        \
+            mbedtls_exit( 1 );                                          \
+        }                                                               \
+    }
+
 /*
  * Clear some memory that was used to prepare the context
  */
@@ -827,6 +839,9 @@ int main( int argc, char *argv[] )
              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
              curve_info++ )
         {
+            if( ! mbedtls_ecdsa_can_do( curve_info->grp_id ) )
+                continue;
+
             mbedtls_ecdsa_init( &ecdsa );
 
             if( mbedtls_ecdsa_genkey( &ecdsa, curve_info->grp_id, myrand, NULL ) != 0 )
@@ -846,6 +861,9 @@ int main( int argc, char *argv[] )
              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
              curve_info++ )
         {
+            if( ! mbedtls_ecdsa_can_do( curve_info->grp_id ) )
+                continue;
+
             mbedtls_ecdsa_init( &ecdsa );
 
             if( mbedtls_ecdsa_genkey( &ecdsa, curve_info->grp_id, myrand, NULL ) != 0 ||
@@ -888,24 +906,24 @@ int main( int argc, char *argv[] )
              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
              curve_info++ )
         {
+            if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
+                continue;
+
             mbedtls_ecdh_init( &ecdh );
 
-            if( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) != 0 ||
-                mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
-                                  myrand, NULL ) != 0 ||
-                mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) != 0 )
-            {
-                mbedtls_exit( 1 );
-            }
+            CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
+                                                    myrand, NULL ) );
+            CHECK_AND_CONTINUE( mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) );
             ecp_clear_precomputed( &ecdh.grp );
 
             mbedtls_snprintf( title, sizeof( title ), "ECDHE-%s",
                                               curve_info->name );
             TIME_PUBLIC( title, "handshake",
-                    ret |= mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
-                                             myrand, NULL );
-                    ret |= mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
                                              myrand, NULL ) );
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
+                                             myrand, NULL ) ) );
             mbedtls_ecdh_free( &ecdh );
         }
 
@@ -917,19 +935,16 @@ int main( int argc, char *argv[] )
             mbedtls_ecdh_init( &ecdh );
             mbedtls_mpi_init( &z );
 
-            if( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) != 0 ||
-                mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp, myrand, NULL ) != 0 )
-            {
-                mbedtls_exit( 1 );
-            }
+            CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp, myrand, NULL ) );
 
             mbedtls_snprintf( title, sizeof(title), "ECDHE-%s",
                               curve_info->name );
             TIME_PUBLIC(  title, "handshake",
-                    ret |= mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q,
-                                            myrand, NULL );
-                    ret |= mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q,
                                             myrand, NULL ) );
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
+                                                myrand, NULL ) ) );
 
             mbedtls_ecdh_free( &ecdh );
             mbedtls_mpi_free( &z );
@@ -939,24 +954,24 @@ int main( int argc, char *argv[] )
              curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
              curve_info++ )
         {
+            if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
+                continue;
+
             mbedtls_ecdh_init( &ecdh );
 
-            if( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) != 0 ||
-                mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
-                                  myrand, NULL ) != 0 ||
-                mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) != 0 ||
-                mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
-                                  myrand, NULL ) != 0 )
-            {
-                mbedtls_exit( 1 );
-            }
+            CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
+                                  myrand, NULL ) );
+            CHECK_AND_CONTINUE( mbedtls_ecp_copy( &ecdh.Qp, &ecdh.Q ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh, &olen, buf, sizeof( buf),
+                                  myrand, NULL ) );
             ecp_clear_precomputed( &ecdh.grp );
 
             mbedtls_snprintf( title, sizeof( title ), "ECDH-%s",
                                               curve_info->name );
             TIME_PUBLIC( title, "handshake",
-                    ret |= mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
-                                             myrand, NULL ) );
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh, &olen, buf, sizeof( buf ),
+                                             myrand, NULL ) ) );
             mbedtls_ecdh_free( &ecdh );
         }
 
@@ -968,19 +983,16 @@ int main( int argc, char *argv[] )
             mbedtls_ecdh_init( &ecdh );
             mbedtls_mpi_init( &z );
 
-            if( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) != 0 ||
-                mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp,
-                                 myrand, NULL ) != 0 ||
-                mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q, myrand, NULL ) != 0 )
-            {
-                mbedtls_exit( 1 );
-            }
+            CHECK_AND_CONTINUE( mbedtls_ecp_group_load( &ecdh.grp, curve_info->grp_id ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Qp,
+                                 myrand, NULL ) );
+            CHECK_AND_CONTINUE( mbedtls_ecdh_gen_public( &ecdh.grp, &ecdh.d, &ecdh.Q, myrand, NULL ) );
 
             mbedtls_snprintf( title, sizeof(title), "ECDH-%s",
                               curve_info->name );
             TIME_PUBLIC(  title, "handshake",
-                    ret |= mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
-                                                myrand, NULL ) );
+                    CHECK_AND_CONTINUE( mbedtls_ecdh_compute_shared( &ecdh.grp, &z, &ecdh.Qp, &ecdh.d,
+                                                myrand, NULL ) ) );
 
             mbedtls_ecdh_free( &ecdh );
             mbedtls_mpi_free( &z );
@@ -988,6 +1000,48 @@ int main( int argc, char *argv[] )
     }
 #endif
 
+#if defined(MBEDTLS_ECDH_C)
+    if( todo.ecdh )
+    {
+        mbedtls_ecdh_context ecdh_srv, ecdh_cli;
+        unsigned char buf_srv[BUFSIZE], buf_cli[BUFSIZE];
+        const mbedtls_ecp_curve_info * curve_list = mbedtls_ecp_curve_list();
+        const mbedtls_ecp_curve_info *curve_info;
+        size_t olen;
+
+        for( curve_info = curve_list;
+            curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
+            curve_info++ )
+        {
+            if( ! mbedtls_ecdh_can_do( curve_info->grp_id ) )
+                continue;
+
+            mbedtls_ecdh_init( &ecdh_srv );
+            mbedtls_ecdh_init( &ecdh_cli );
+
+            mbedtls_snprintf( title, sizeof( title ), "ECDHE-%s", curve_info->name );
+            TIME_PUBLIC( title, "full handshake",
+                const unsigned char * p_srv = buf_srv;
+
+                CHECK_AND_CONTINUE( mbedtls_ecdh_setup( &ecdh_srv, curve_info->grp_id ) );
+                CHECK_AND_CONTINUE( mbedtls_ecdh_make_params( &ecdh_srv, &olen, buf_srv, sizeof( buf_srv ), myrand, NULL ) );
+
+                CHECK_AND_CONTINUE( mbedtls_ecdh_read_params( &ecdh_cli, &p_srv, p_srv + olen ) );
+                CHECK_AND_CONTINUE( mbedtls_ecdh_make_public( &ecdh_cli, &olen, buf_cli, sizeof( buf_cli ), myrand, NULL ) );
+
+                CHECK_AND_CONTINUE( mbedtls_ecdh_read_public( &ecdh_srv, buf_cli, olen ) );
+                CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh_srv, &olen, buf_srv, sizeof( buf_srv ), myrand, NULL ) );
+
+                CHECK_AND_CONTINUE( mbedtls_ecdh_calc_secret( &ecdh_cli, &olen, buf_cli, sizeof( buf_cli ), myrand, NULL ) );
+                mbedtls_ecdh_free( &ecdh_cli );
+
+                mbedtls_ecdh_free( &ecdh_srv );
+            );
+
+        }
+    }
+#endif
+
     mbedtls_printf( "\n" );
 
 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)

programs/test/query_config.c

@@ -1972,6 +1972,14 @@ int query_config( const char *config )
     }
 #endif /* MBEDTLS_PLATFORM_GMTIME_R_ALT */
 
+#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)
+    if( strcmp( "MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED", config ) == 0 )
+    {
+        MACRO_EXPANSION_TO_STR( MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED );
+        return( 0 );
+    }
+#endif /* MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED */
+
     /* If the symbol is not found, return an error */
     return( 1 );
 }

scripts/config.pl

@@ -91,6 +91,7 @@ MBEDTLS_PSA_CRYPTO_SPM
 MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER
 MBEDTLS_PSA_INJECT_ENTROPY
 MBEDTLS_ECP_RESTARTABLE
+MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
 _ALT\s*$
 );
 

scripts/data_files/vs2010-app-template.vcxproj

@@ -93,7 +93,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -113,7 +113,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -135,7 +135,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -155,7 +155,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>

scripts/data_files/vs2010-main-template.vcxproj

@@ -85,8 +85,8 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
     </ClCompile>
     <Link>
@@ -100,8 +100,8 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
     </ClCompile>
     <Link>
@@ -117,8 +117,8 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -135,8 +135,8 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN64;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN64;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>

scripts/generate_visualc_files.pl

@@ -22,6 +22,8 @@ my $programs_dir = 'programs';
 my $mbedtls_header_dir = 'include/mbedtls';
 my $psa_header_dir = 'include/psa';
 my $source_dir = 'library';
+my $everest_header_dir = '3rdparty/everest/include/everest';
+my @everest_source_dirs = ('3rdparty/everest/library', '3rdparty/everest/library/kremlib', '3rdparty/everest/library/legacy');
 
 # Need windows line endings!
 my $vsx_hdr_tpl = <<EOT;
@@ -53,9 +55,11 @@ EOT
 exit( main() );
 
 sub check_dirs {
+    foreach my $d (@everest_source_dirs) { if (not (-d $d)) { return 0; } }
     return -d $vsx_dir
         && -d $mbedtls_header_dir
         && -d $psa_header_dir
+        && -d $everest_header_dir
         && -d $source_dir
         && -d $programs_dir;
 }
@@ -139,12 +143,14 @@ sub gen_entry_list {
 }
 
 sub gen_main_file {
-    my ($mbedtls_headers, $psa_headers, $source_headers, $sources, $hdr_tpl, $src_tpl, $main_tpl, $main_out) = @_;
+    my ($mbedtls_headers, $psa_headers, $source_headers, $everest_headers, $sources, $everest_sources, $hdr_tpl, $src_tpl, $main_tpl, $main_out) = @_;
 
     my $header_entries = gen_entry_list( $hdr_tpl, @$mbedtls_headers );
     $header_entries .= gen_entry_list( $hdr_tpl, @$psa_headers );
     $header_entries .= gen_entry_list( $hdr_tpl, @$source_headers );
+    $header_entries .= gen_entry_list( $hdr_tpl, @$everest_headers );
     my $source_entries = gen_entry_list( $src_tpl, @$sources );
+    $source_entries .= gen_entry_list( $src_tpl, @$everest_sources );
 
     my $out = slurp_file( $main_tpl );
     $out =~ s/SOURCE_ENTRIES\r\n/$source_entries/m;
@@ -205,11 +211,18 @@ sub main {
     map { s!/!\\!g } @psa_headers;
     map { s!/!\\!g } @sources;
 
+    my @everest_headers = <$everest_header_dir/*.h>;
+    my @everest_sources = ();
+    foreach my $d (@everest_source_dirs) { push @everest_sources, <$d/*.c>; }
+    @everest_sources = grep !/3rdparty\/everest\/library\/Hacl_Curve25519.c/, @everest_sources;
+    map { s!/!\\!g } @everest_headers;
+    map { s!/!\\!g } @everest_sources;
+
     gen_app_files( @app_list );
 
     gen_main_file( \@mbedtls_headers, \@psa_headers, \@source_headers,
-                   \@sources, $vsx_hdr_tpl, $vsx_src_tpl,
-                   $vsx_main_tpl_file, $vsx_main_file );
+                   \@everest_headers, \@sources, \@everest_sources, $vsx_hdr_tpl,
+                   $vsx_src_tpl, $vsx_main_tpl_file, $vsx_main_file );
 
     gen_vsx_solution( @app_list );
 

tests/Makefile

@@ -10,6 +10,9 @@ LOCAL_CFLAGS = $(WARNING_CFLAGS) $(CRYPTO_INCLUDES) -I../library -D_FILE_OFFSET_
 LOCAL_LDFLAGS = -L../library			\
 		-lmbedcrypto$(SHARED_SUFFIX)
 
+include ../3rdparty/Makefile.inc
+LOCAL_CFLAGS+=$(THIRDPARTY_INCLUDES)
+
 # Enable definition of various functions used throughout the testsuite
 # (gethostname, strdup, fileno...) even when compiling with -std=c99. Harmless
 # on non-POSIX platforms.

tests/scripts/all.sh

@@ -618,6 +618,17 @@ component_test_new_ecdh_context () {
     make test
 }
 
+component_test_everest () {
+    msg "build: Everest ECDH context (ASan build)" # ~ 6 min
+    scripts/config.pl unset MBEDTLS_ECDH_LEGACY_CONTEXT
+    scripts/config.pl set MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
+    CC=clang cmake -D CMAKE_BUILD_TYPE:String=Asan .
+    make
+
+    msg "test: Everest ECDH context - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
+}
+
 component_test_full_cmake_clang () {
     msg "build: cmake, full config, clang" # ~ 50s
     scripts/config.pl full
@@ -904,6 +915,19 @@ support_test_m32_o1 () {
     support_test_m32_o0 "$@"
 }
 
+component_test_m32_everest () {
+    msg "build: i386, Everest ECDH context (ASan build)" # ~ 6 min
+    scripts/config.pl unset MBEDTLS_ECDH_LEGACY_CONTEXT
+    scripts/config.pl set MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED
+    make CC=gcc CFLAGS='-O2 -Werror -Wall -Wextra -m32 -fsanitize=address'
+
+    msg "test: i386, Everest ECDH context - main suites (inc. selftests) (ASan build)" # ~ 50s
+    make test
+}
+support_test_m32_everest () {
+    support_test_m32_o0 "$@"
+}
+
 component_test_mx32 () {
     msg "build: 64-bit ILP32, make, gcc" # ~ 30s
     scripts/config.pl full

tests/scripts/check-files.py

@@ -144,6 +144,7 @@ class TabIssueTracker(LineIssueTracker):
     heading = "Tabs present:"
     files_exemptions = frozenset([
         "Makefile",
+        "Makefile.inc",
         "generate_visualc_files.pl",
     ])
 
@@ -181,7 +182,7 @@ class IntegrityChecker(object):
         self.setup_logger(log_file)
         self.files_to_check = (
             ".c", ".h", ".sh", ".pl", ".py", ".md", ".function", ".data",
-            "Makefile", "CMakeLists.txt", "ChangeLog"
+            "Makefile", "Makefile.inc", "CMakeLists.txt", "ChangeLog"
         )
         self.excluded_directories = ['.git', 'mbed-os']
         self.excluded_paths = list(map(os.path.normpath, [

tests/scripts/check-names.sh

@@ -85,10 +85,12 @@ done
 printf "Likely typos: "
 sort -u actual-macros enum-consts > _caps
 HEADERS=$( ls include/mbedtls/*.h include/psa/*.h | egrep -v 'compat-1\.3\.h' )
+HEADERS="$HEADERS 3rdparty/everest/include/everest/everest.h 3rdparty/everest/include/everest/x25519.h"
+LIBRARY="$( ls library/*.c ) 3rdparty/everest/library/everest.c 3rdparty/everest/library/x25519.c"
 NL='
 '
 sed -n 's/MBED..._[A-Z0-9_]*/\'"$NL"'&\'"$NL"/gp \
-    $HEADERS library/*.c \
+    $HEADERS $LIBRARY \
     | grep MBEDTLS | sort -u > _MBEDTLS_XXX
 TYPOS=$( diff _caps _MBEDTLS_XXX | sed -n 's/^> //p' \
             | egrep -v 'XXX|__|_$|^MBEDTLS_.*CONFIG_FILE$' || true )

tests/scripts/list-enum-consts.pl

@@ -9,6 +9,9 @@ use open qw(:std utf8);
 -d 'include/mbedtls' or die "$0: must be run from root\n";
 
 @ARGV = grep { ! /compat-1\.3\.h/ } <include/mbedtls/*.h>;
+push @ARGV, "3rdparty/everest/include/everest/everest.h";
+push @ARGV, "3rdparty/everest/include/everest/x25519.h";
+
 
 my @consts;
 my $state = 'out';
@@ -22,7 +25,7 @@ while (<>)
         $state = 'in';
     } elsif( $state eq 'in' and /}/ ) {
         $state = 'out';
-    } elsif( $state eq 'in' ) {
+    } elsif( $state eq 'in' and not /^#/) {
         s/=.*//; s!/\*.*!!; s/,.*//; s/\s+//g; chomp;
         push @consts, $_ if $_;
     }

tests/scripts/list-identifiers.sh

@@ -35,6 +35,7 @@ then
     HEADERS=$( ls include/mbedtls/*_internal.h library/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
 else
     HEADERS=$( ls include/mbedtls/*.h include/psa/*.h library/*.h | egrep -v 'compat-1\.3\.h|bn_mul' )
+    HEADERS="$HEADERS 3rdparty/everest/include/everest/everest.h 3rdparty/everest/include/everest/x25519.h"
 fi
 
 rm -f identifiers

tests/scripts/list-macros.sh

@@ -8,6 +8,7 @@ if [ -d include/mbedtls ]; then :; else
 fi
 
 HEADERS=$( ls include/mbedtls/*.h include/psa/*.h | egrep -v 'compat-1\.3\.h' )
+HEADERS="$HEADERS 3rdparty/everest/include/everest/everest.h 3rdparty/everest/include/everest/x25519.h"
 
 # White-list macros we want to be able to refer to that don't exist in the
 # crypto library, useful when referring to macros in Mbed TLS from comments.

tests/scripts/list-symbols.sh

@@ -30,9 +30,9 @@ if [ -n "$make_ret" ]; then
 fi
 
 if uname | grep -F Darwin >/dev/null; then
-    nm -gUj library/libmbed*.a 2>/dev/null | sed -n -e 's/^_//p'
+    nm -gUj library/libmbed*.a 2>/dev/null | sed -n -e 's/^_//p' | grep -v -e ^FStar -e ^Hacl
 elif uname | grep -F Linux >/dev/null; then
-    nm -og library/libmbed*.a | grep -v '^[^ ]*: *U \|^$\|^[^ ]*:$' | sed 's/^[^ ]* . //'
+    nm -og library/libmbed*.a | grep -v '^[^ ]*: *U \|^$\|^[^ ]*:$' | sed 's/^[^ ]* . //' | grep -v -e ^FStar -e ^Hacl
 fi | sort > exported-symbols
 make clean
 

visualc/VS2010/aescrypt2.vcxproj

@@ -94,7 +94,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -114,7 +114,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -136,7 +136,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -156,7 +156,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>

visualc/VS2010/benchmark.vcxproj

@@ -94,7 +94,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -114,7 +114,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -136,7 +136,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
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visualc/VS2010/crypt_and_hash.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/crypto_examples.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/dh_genprime.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/ecdh_curve25519.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/ecdsa.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/gen_entropy.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/gen_key.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/gen_random_ctr_drbg.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/gen_random_havege.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/generic_sum.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/hello.vcxproj

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       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -156,7 +156,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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visualc/VS2010/key_app.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -114,7 +114,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -136,7 +136,7 @@
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+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -156,7 +156,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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visualc/VS2010/key_app_writer.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -114,7 +114,7 @@
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       <Optimization>Disabled</Optimization>
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -136,7 +136,7 @@
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+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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     <Link>
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@@ -156,7 +156,7 @@
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       <IntrinsicFunctions>true</IntrinsicFunctions>
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
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visualc/VS2010/key_ladder_demo.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -114,7 +114,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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visualc/VS2010/mbedTLS.vcxproj

@@ -85,8 +85,8 @@
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-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -100,8 +100,8 @@
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-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -117,8 +117,8 @@
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-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
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@@ -135,8 +135,8 @@
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-      <PreprocessorDefinitions>WIN64;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN64;NDEBUG;_WINDOWS;_USRDLL;MBEDTLS_EXPORTS;KRML_VERIFIED_UINT128;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -228,6 +228,10 @@
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     <ClInclude Include="..\..\library/psa_crypto_slot_management.h" />
     <ClInclude Include="..\..\library/psa_crypto_storage.h" />
+    <ClInclude Include="..\..\3rdparty\everest\include\everest\everest.h" />
+    <ClInclude Include="..\..\3rdparty\everest\include\everest\Hacl_Curve25519.h" />
+    <ClInclude Include="..\..\3rdparty\everest\include\everest\kremlib.h" />
+    <ClInclude Include="..\..\3rdparty\everest\include\everest\x25519.h" />
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@@ -296,6 +300,12 @@
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     <ClCompile Include="..\..\library\version_features.c" />
     <ClCompile Include="..\..\library\xtea.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\everest.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\Hacl_Curve25519_joined.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\x25519.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\kremlib\FStar_UInt128_extracted.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\kremlib\FStar_UInt64_FStar_UInt32_FStar_UInt16_FStar_UInt8.c" />
+    <ClCompile Include="..\..\3rdparty\everest\library\legacy\Hacl_Curve25519.c" />
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visualc/VS2010/mpi_demo.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/pem2der.vcxproj

@@ -94,7 +94,7 @@
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@@ -114,7 +114,7 @@
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/pk_decrypt.vcxproj

@@ -94,7 +94,7 @@
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@@ -114,7 +114,7 @@
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/pk_encrypt.vcxproj

@@ -94,7 +94,7 @@
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@@ -114,7 +114,7 @@
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/pk_sign.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/pk_verify.vcxproj

@@ -94,7 +94,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
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visualc/VS2010/psa_constant_names.vcxproj

@@ -94,7 +94,7 @@
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       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/query_compile_time_config.vcxproj

@@ -95,7 +95,7 @@
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@@ -115,7 +115,7 @@
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@@ -157,7 +157,7 @@
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visualc/VS2010/rsa_decrypt.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/rsa_encrypt.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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@@ -136,7 +136,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/rsa_genkey.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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@@ -156,7 +156,7 @@
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visualc/VS2010/rsa_sign.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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@@ -114,7 +114,7 @@
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visualc/VS2010/rsa_sign_pss.vcxproj

@@ -94,7 +94,7 @@
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       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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visualc/VS2010/rsa_verify.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/rsa_verify_pss.vcxproj

@@ -94,7 +94,7 @@
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visualc/VS2010/selftest.vcxproj

@@ -94,7 +94,7 @@
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-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>

visualc/VS2010/strerror.vcxproj

@@ -94,7 +94,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -114,7 +114,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -136,7 +136,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -156,7 +156,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>

visualc/VS2010/zeroize.vcxproj

@@ -94,7 +94,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -114,7 +114,7 @@
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -136,7 +136,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -156,7 +156,7 @@
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <PreprocessorDefinitions>WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>../../include;../../3rdparty/everest/include/;../../3rdparty/everest/include/everest;../../3rdparty/everest/include/everest/vs2010;../../3rdparty/everest/include/everest/kremlib</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>