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mbedtls/include/psa/crypto_accel_driver.h

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Split crypto_driver.h into one for each driver type Split crypto_driver.h into 4: * crypto_driver_common.h for common definitions, not meant to be included directly by driver code. * crypto_accel_driver.h for drivers that work with transparent key material. * crypto_se_driver.h for drivers that work with opaque key material. * crypto_entropy_driver.h for drivers of entropy sources. There is no code change in this commit, I only moved some code around.
2018-12-12 14:55:09 +00:00
/**
* \file psa/crypto_accel_driver.h
* \brief PSA cryptography accelerator driver module
*
* This header declares types and function signatures for cryptography
* drivers that access key material directly. This is meant for
* on-chip cryptography accelerators.
*
* This file is part of the PSA Crypto Driver Model, containing functions for
* driver developers to implement to enable hardware to be called in a
* standardized way by a PSA Cryptographic API implementation. The functions
* comprising the driver model, which driver authors implement, are not
* intended to be called by application developers.
*/
/*
* Copyright (C) 2018, ARM Limited, All Rights Reserved
* 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.
*/
#ifndef PSA_CRYPTO_ACCEL_DRIVER_H
#define PSA_CRYPTO_ACCEL_DRIVER_H
#include "crypto_driver_common.h"
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup driver_digest Message Digests
*
* Generation and authentication of Message Digests (aka hashes) must be done
* in parts using the following sequence:
* - `psa_drv_hash_setup_t`
* - `psa_drv_hash_update_t`
* - ...
* - `psa_drv_hash_finish_t`
*
* If a previously started Message Digest operation needs to be terminated
* before the `psa_drv_hash_finish_t` operation is complete, it should be aborted
* by the `psa_drv_hash_abort_t`. Failure to do so may result in allocated
* resources not being freed or in other undefined behavior.
*/
/**@{*/
/** \brief The hardware-specific hash context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here
*/
typedef struct psa_drv_hash_context_s psa_drv_hash_context_t;
/** \brief The function prototype for the start operation of a hash (message
* digest) operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_setup
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying hash function
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific hash context
*
* \retval PSA_SUCCESS Success.
*/
typedef psa_status_t (*psa_drv_hash_setup_t)(psa_drv_hash_context_t *p_context);
/** \brief The function prototype for the update operation of a hash (message
* digest) operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_update
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the
* previously-established hash operation to be
* continued
* \param[in] p_input A buffer containing the message to be appended
* to the hash operation
* \param[in] input_length The size in bytes of the input message buffer
*/
typedef psa_status_t (*psa_drv_hash_update_t)(psa_drv_hash_context_t *p_context,
const uint8_t *p_input,
size_t input_length);
/** \brief The prototype for the finish operation of a hash (message digest)
* operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_finish
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started hash operation to be
* fiinished
* \param[out] p_output A buffer where the generated digest will be
* placed
* \param[in] output_size The size in bytes of the buffer that has been
* allocated for the `p_output` buffer
* \param[out] p_output_length The number of bytes placed in `p_output` after
* success
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_hash_finish_t)(psa_drv_hash_context_t *p_context,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the abort operation of a hash (message
* digest) operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_hash_<ALGO>_abort
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm
*
* \param[in,out] p_context A hardware-specific structure for the previously
* started hash operation to be aborted
*/
typedef void (*psa_drv_hash_abort_t)(psa_drv_hash_context_t *p_context);
/**@}*/
/** \defgroup transparent_mac Transparent Message Authentication Code
* Generation and authentication of Message Authentication Codes (MACs) using
* transparent keys can be done either as a single function call (via the
* `psa_drv_mac_transparent_generate_t` or `psa_drv_mac_transparent_verify_t`
* functions), or in parts using the following sequence:
* - `psa_drv_mac_transparent_setup_t`
* - `psa_drv_mac_transparent_update_t`
* - `psa_drv_mac_transparent_update_t`
* - ...
* - `psa_drv_mac_transparent_finish_t` or `psa_drv_mac_transparent_finish_verify_t`
*
* If a previously started Transparent MAC operation needs to be terminated, it
* should be done so by the `psa_drv_mac_transparent_abort_t`. Failure to do so may
* result in allocated resources not being freed or in other undefined
* behavior.
*
*/
/**@{*/
/** \brief The hardware-specific transparent-key MAC context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here.
*/
typedef struct psa_drv_mac_transparent_context_s psa_drv_mac_transparent_context_t;
/** \brief The function prototype for the setup operation of a
* transparent-key MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_setup
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying primitive, and `MAC_VARIANT`
* is the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific MAC context
* \param[in] p_key A buffer containing the cleartext key material
* to be used in the operation
* \param[in] key_length The size in bytes of the key material
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_mac_transparent_setup_t)(psa_drv_mac_transparent_context_t *p_context,
const uint8_t *p_key,
size_t key_length);
/** \brief The function prototype for the update operation of a
* transparent-key MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_update
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT`
* is the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously-established MAC operation to be
* continued
* \param[in] p_input A buffer containing the message to be appended
* to the MAC operation
* \param[in] input_length The size in bytes of the input message buffer
*/
typedef psa_status_t (*psa_drv_mac_transparent_update_t)(psa_drv_mac_transparent_context_t *p_context,
const uint8_t *p_input,
size_t input_length);
/** \brief The function prototype for the finish operation of a
* transparent-key MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_finish
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* finished
* \param[out] p_mac A buffer where the generated MAC will be placed
* \param[in] mac_length The size in bytes of the buffer that has been
* allocated for the `p_mac` buffer
*
* \retval PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_mac_transparent_finish_t)(psa_drv_mac_transparent_context_t *p_context,
uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for the finish and verify operation of a
* transparent-key MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_finish_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* verified and finished
* \param[in] p_mac A buffer containing the MAC that will be used
* for verification
* \param[in] mac_length The size in bytes of the data in the `p_mac`
* buffer
*
* \retval PSA_SUCCESS
* The operation completed successfully and the comparison matched
*/
typedef psa_status_t (*psa_drv_mac_transparent_finish_verify_t)(psa_drv_mac_transparent_context_t *p_context,
const uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for the abort operation for a previously
* started transparent-key MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_abort
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started MAC operation to be
* aborted
*
*/
typedef psa_status_t (*psa_drv_mac_transparent_abort_t)(psa_drv_mac_transparent_context_t *p_context);
/** \brief The function prototype for a one-shot operation of a transparent-key
* MAC operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in] p_input A buffer containing the data to be MACed
* \param[in] input_length The length in bytes of the `p_input` data
* \param[in] p_key A buffer containing the key material to be used
* for the MAC operation
* \param[in] key_length The length in bytes of the `p_key` data
* \param[in] alg The algorithm to be performed
* \param[out] p_mac The buffer where the resulting MAC will be placed
* upon success
* \param[in] mac_length The length in bytes of the `p_mac` buffer
*/
typedef psa_status_t (*psa_drv_mac_transparent_t)(const uint8_t *p_input,
size_t input_length,
const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
uint8_t *p_mac,
size_t mac_length);
/** \brief The function prototype for a one-shot operation of a transparent-key
* MAC Verify operation
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_mac_transparent_<ALGO>_<MAC_VARIANT>_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
* the specific variant of a MAC operation (such as HMAC or CMAC)
*
* \param[in] p_input A buffer containing the data to be MACed
* \param[in] input_length The length in bytes of the `p_input` data
* \param[in] p_key A buffer containing the key material to be used
* for the MAC operation
* \param[in] key_length The length in bytes of the `p_key` data
* \param[in] alg The algorithm to be performed
* \param[in] p_mac The MAC data to be compared
* \param[in] mac_length The length in bytes of the `p_mac` buffer
*
* \retval PSA_SUCCESS
* The operation completed successfully and the comparison matched
*/
typedef psa_status_t (*psa_drv_mac_transparent_verify_t)(const uint8_t *p_input,
size_t input_length,
const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *p_mac,
size_t mac_length);
/**@}*/
/** \defgroup transparent_cipher Transparent Block Cipher
* Encryption and Decryption using transparent keys in block modes other than
* ECB must be done in multiple parts, using the following flow:
* - `psa_drv_cipher_transparent_setup_t`
* - `psa_drv_cipher_transparent_set_iv_t` (optional depending upon block mode)
* - `psa_drv_cipher_transparent_update_t`
* - ...
* - `psa_drv_cipher_transparent_finish_t`
* If a previously started Transparent Cipher operation needs to be terminated,
* it should be done so by the `psa_drv_cipher_transparent_abort_t`. Failure to do
* so may result in allocated resources not being freed or in other undefined
* behavior.
*/
/**@{*/
/** \brief The hardware-specific transparent-key Cipher context structure
*
* The contents of this structure are implementation dependent and are
* therefore not described here.
*/
typedef struct psa_drv_cipher_transparent_context_s psa_drv_cipher_transparent_context_t;
/** \brief The function prototype for the setup operation of transparent-key
* block cipher operations.
* Functions that implement the prototype should be named in the following
* conventions:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_setup_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
* or for stream ciphers:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_setup_<CIPHER_NAME>
* ~~~~~~~~~~~~~
* Where `CIPHER_NAME` is the name of a stream cipher (i.e. RC4)
*
* \param[in,out] p_context A structure that will contain the
* hardware-specific cipher context
* \param[in] direction Indicates if the operation is an encrypt or a
* decrypt
* \param[in] p_key_data A buffer containing the cleartext key material
* to be used in the operation
* \param[in] key_data_size The size in bytes of the key material
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_cipher_transparent_setup_t)(psa_drv_cipher_transparent_context_t *p_context,
psa_encrypt_or_decrypt_t direction,
const uint8_t *p_key_data,
size_t key_data_size);
/** \brief The function prototype for the set initialization vector operation
* of transparent-key block cipher operations
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_set_iv_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A structure that contains the previously setup
* hardware-specific cipher context
* \param[in] p_iv A buffer containing the initialization vecotr
* \param[in] iv_length The size in bytes of the contents of `p_iv`
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_cipher_transparent_set_iv_t)(psa_drv_cipher_transparent_context_t *p_context,
const uint8_t *p_iv,
size_t iv_length);
/** \brief The function prototype for the update operation of transparent-key
* block cipher operations.
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_update_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
* \param[in] p_input A buffer containing the data to be
* encrypted or decrypted
* \param[in] input_size The size in bytes of the `p_input` buffer
* \param[out] p_output A caller-allocated buffer where the
* generated output will be placed
* \param[in] output_size The size in bytes of the `p_output` buffer
* \param[out] p_output_length After completion, will contain the number
* of bytes placed in the `p_output` buffer
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_cipher_transparent_update_t)(psa_drv_cipher_transparent_context_t *p_context,
const uint8_t *p_input,
size_t input_size,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the finish operation of transparent-key
* block cipher operations.
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_finish_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
* \param[out] p_output A caller-allocated buffer where the generated
* output will be placed
* \param[in] output_size The size in bytes of the `p_output` buffer
* \param[out] p_output_length After completion, will contain the number of
* bytes placed in the `p_output` buffer
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_cipher_transparent_finish_t)(psa_drv_cipher_transparent_context_t *p_context,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/** \brief The function prototype for the abort operation of transparent-key
* block cipher operations.
*
* Functions that implement the following prototype should be named in the
* following convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_cipher_transparent_abort_<CIPHER_NAME>_<MODE>
* ~~~~~~~~~~~~~
* Where
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
*
* \param[in,out] p_context A hardware-specific structure for the
* previously started cipher operation
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_cipher_transparent_abort_t)(psa_drv_cipher_transparent_context_t *p_context);
/**@}*/
/** \defgroup aead_transparent AEAD Transparent
*
* Authenticated Encryption with Additional Data (AEAD) operations with
* transparent keys must be done in one function call. While this creates a
* burden for implementers as there must be sufficient space in memory for the
* entire message, it prevents decrypted data from being made available before
* the authentication operation is complete and the data is known to be
* authentic.
*/
/**@{*/
/** Process an authenticated encryption operation using an opaque key.
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_aead_<ALGO>_encrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the AEAD algorithm
*
* \param[in] p_key A pointer to the key material
* \param[in] key_length The size in bytes of the key material
* \param[in] alg The AEAD algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(`alg`) is true)
* \param[in] nonce Nonce or IV to use
* \param[in] nonce_length Size of the `nonce` buffer in bytes
* \param[in] additional_data Additional data that will be MACed
* but not encrypted.
* \param[in] additional_data_length Size of `additional_data` in bytes
* \param[in] plaintext Data that will be MACed and
* encrypted.
* \param[in] plaintext_length Size of `plaintext` in bytes
* \param[out] ciphertext Output buffer for the authenticated and
* encrypted data. The additional data is
* not part of this output. For algorithms
* where the encrypted data and the
* authentication tag are defined as
* separate outputs, the authentication
* tag is appended to the encrypted data.
* \param[in] ciphertext_size Size of the `ciphertext` buffer in
* bytes
* This must be at least
* #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(`alg`,
* `plaintext_length`).
* \param[out] ciphertext_length On success, the size of the output in
* the `ciphertext` buffer
*
* \retval #PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_aead_transparent_encrypt_t)(const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *nonce,
size_t nonce_length,
const uint8_t *additional_data,
size_t additional_data_length,
const uint8_t *plaintext,
size_t plaintext_length,
uint8_t *ciphertext,
size_t ciphertext_size,
size_t *ciphertext_length);
/** Process an authenticated decryption operation using an opaque key.
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_aead_<ALGO>_decrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the AEAD algorithm
* \param[in] p_key A pointer to the key material
* \param[in] key_length The size in bytes of the key material
* \param[in] alg The AEAD algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_AEAD(`alg`) is true)
* \param[in] nonce Nonce or IV to use
* \param[in] nonce_length Size of the `nonce` buffer in bytes
* \param[in] additional_data Additional data that has been MACed
* but not encrypted
* \param[in] additional_data_length Size of `additional_data` in bytes
* \param[in] ciphertext Data that has been MACed and
* encrypted
* For algorithms where the encrypted data
* and the authentication tag are defined
* as separate inputs, the buffer must
* contain the encrypted data followed by
* the authentication tag.
* \param[in] ciphertext_length Size of `ciphertext` in bytes
* \param[out] plaintext Output buffer for the decrypted data
* \param[in] plaintext_size Size of the `plaintext` buffer in
* bytes
* This must be at least
* #PSA_AEAD_DECRYPT_OUTPUT_SIZE(`alg`,
* `ciphertext_length`).
* \param[out] plaintext_length On success, the size of the output
* in the \b plaintext buffer
*
* \retval #PSA_SUCCESS
* Success.
*/
typedef psa_status_t (*psa_drv_aead_transparent_decrypt_t)(const uint8_t *p_key,
size_t key_length,
psa_algorithm_t alg,
const uint8_t *nonce,
size_t nonce_length,
const uint8_t *additional_data,
size_t additional_data_length,
const uint8_t *ciphertext,
size_t ciphertext_length,
uint8_t *plaintext,
size_t plaintext_size,
size_t *plaintext_length);
/**@}*/
/** \defgroup transparent_asymmetric Transparent Asymmetric Cryptography
*
* Since the amount of data that can (or should) be encrypted or signed using
* asymmetric keys is limited by the key size, asymmetric key operations using
* transparent keys must be done in single function calls.
*/
/**@{*/
/**
* \brief A function that signs a hash or short message with a transparent
* asymmetric private key
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_asymmetric_<ALGO>_sign
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the signing algorithm
*
* \param[in] p_key A buffer containing the private key
* material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg A signature algorithm that is compatible
* with the type of `p_key`
* \param[in] p_hash The hash or message to sign
* \param[in] hash_length Size of the `p_hash` buffer in bytes
* \param[out] p_signature Buffer where the signature is to be written
* \param[in] signature_size Size of the `p_signature` buffer in bytes
* \param[out] p_signature_length On success, the number of bytes
* that make up the returned signature value
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_asymmetric_transparent_sign_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
const uint8_t *p_hash,
size_t hash_length,
uint8_t *p_signature,
size_t signature_size,
size_t *p_signature_length);
/**
* \brief A function that verifies the signature a hash or short message using
* a transparent asymmetric public key
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_asymmetric_<ALGO>_verify
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the signing algorithm
*
* \param[in] p_key A buffer containing the public key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg A signature algorithm that is compatible with
* the type of `key`
* \param[in] p_hash The hash or message whose signature is to be
* verified
* \param[in] hash_length Size of the `p_hash` buffer in bytes
* \param[in] p_signature Buffer containing the signature to verify
* \param[in] signature_length Size of the `p_signature` buffer in bytes
*
* \retval PSA_SUCCESS
* The signature is valid.
*/
typedef psa_status_t (*psa_drv_asymmetric_transparent_verify_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
const uint8_t *p_hash,
size_t hash_length,
const uint8_t *p_signature,
size_t signature_length);
/**
* \brief A function that encrypts a short message with a transparent
* asymmetric public key
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_asymmetric_<ALGO>_encrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the encryption algorithm
*
* \param[in] p_key A buffer containing the public key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg An asymmetric encryption algorithm that is
* compatible with the type of `key`
* \param[in] p_input The message to encrypt
* \param[in] input_length Size of the `p_input` buffer in bytes
* \param[in] p_salt A salt or label, if supported by the
* encryption algorithm
* If the algorithm does not support a
* salt, pass `NULL`
* If the algorithm supports an optional
* salt and you do not want to pass a salt,
* pass `NULL`.
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
* supported.
* \param[in] salt_length Size of the `p_salt` buffer in bytes
* If `p_salt` is `NULL`, pass 0.
* \param[out] p_output Buffer where the encrypted message is to
* be written
* \param[in] output_size Size of the `p_output` buffer in bytes
* \param[out] p_output_length On success, the number of bytes
* that make up the returned output
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_asymmetric_transparent_encrypt_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
const uint8_t *p_input,
size_t input_length,
const uint8_t *p_salt,
size_t salt_length,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/**
* \brief Decrypt a short message with a transparent asymmetric private key
*
* Functions that implement the prototype should be named in the following
* convention:
* ~~~~~~~~~~~~~{.c}
* psa_drv_asymmetric_<ALGO>_decrypt
* ~~~~~~~~~~~~~
* Where `ALGO` is the name of the encryption algorithm
*
* \param[in] p_key A buffer containing the private key material
* \param[in] key_size The size in bytes of the `p_key` data
* \param[in] alg An asymmetric encryption algorithm that is
* compatible with the type of `key`
* \param[in] p_input The message to decrypt
* \param[in] input_length Size of the `p_input` buffer in bytes
* \param[in] p_salt A salt or label, if supported by the
* encryption algorithm
* If the algorithm does not support a
* salt, pass `NULL`.
* If the algorithm supports an optional
* salt and you do not want to pass a salt,
* pass `NULL`.
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
* supported
* \param[in] salt_length Size of the `p_salt` buffer in bytes
* If `p_salt` is `NULL`, pass 0
* \param[out] p_output Buffer where the decrypted message is to
* be written
* \param[in] output_size Size of the `p_output` buffer in bytes
* \param[out] p_output_length On success, the number of bytes
* that make up the returned output
*
* \retval PSA_SUCCESS
*/
typedef psa_status_t (*psa_drv_asymmetric_transparent_decrypt_t)(const uint8_t *p_key,
size_t key_size,
psa_algorithm_t alg,
const uint8_t *p_input,
size_t input_length,
const uint8_t *p_salt,
size_t salt_length,
uint8_t *p_output,
size_t output_size,
size_t *p_output_length);
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* PSA_CRYPTO_ACCEL_DRIVER_H */
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