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Added additional support for ECP for PSA_CRYPTO_CONFIG

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The KEY_TYPE_ECC_KEY_PAIR and KEY_TYPE_ECC_PUBLIC_KEY were previously
being guarded by MBEDTLS_ECP_C in the PSA crypto library code. This change
moves it to the new MBEDTLS_PSA_BUILTIN_xxx and separates KEY_PAIR
and PUBLIC_KEY as needed. Tests have also been added to validate the new
settings.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
This commit is contained in:
John Durkop 2020-10-28 20:09:55 -07:00
parent d032195278
commit f4c4cb008c
4 changed files with 70 additions and 27 deletions
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35
include/mbedtls/config_psa.h
View file

@ -63,23 +63,35 @@ extern "C" {
#define MBEDTLS_ECDH_C
#define MBEDTLS_ECP_C
#define MBEDTLS_BIGNUM_C
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_ECDH) */
#endif /* defined(PSA_WANT_ALG_ECDH) */
#endif /* !MBEDTLS_PSA_ACCEL_ALG_ECDH */
#endif /* PSA_WANT_ALG_ECDH */
#if defined(PSA_WANT_ECC_KEY_PAIR)
#if !defined(MBEDTLS_PSA_ACCEL_ECC_KEY_PAIR)
#define MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR 1
#endif /* !MBEDTLS_PSA_ACCEL_ECC_KEY_PAIR */
#endif /* PSA_WANT_ECC_KEY_PAIR */
#if defined(PSA_WANT_ECC_PUBLIC_KEY)
#if !defined(MBEDTLS_PSA_ACCEL_ECC_PUBLIC_KEY)
#define MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY 1
#endif /* !MBEDTLS_PSA_ACCEL_ECC_PUBLIC_KEY */
#endif /* PSA_WANT_ECC_PUBLIC_KEY */
#if defined(PSA_WANT_ALG_HMAC)
#if !defined(MBEDTLS_PSA_ACCEL_ALG_HMAC)
#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1
#define MBEDTLS_MD_C
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_HMAC) */
#endif /* defined(PSA_WANT_ALG_HMAC) */
#endif /* !MBEDTLS_PSA_ACCEL_ALG_HMAC */
#endif /* PSA_WANT_ALG_HMAC */
#if defined(PSA_WANT_ALG_HKDF)
#if !defined(MBEDTLS_PSA_ACCEL_ALG_HKDF)
#define MBEDTLS_PSA_BUILTIN_ALG_HKDF 1
#define MBEDTLS_HKDF_C
#define MBEDTLS_MD_C
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_HKDF) */
#endif /* defined(PSA_WANT_ALG_HKDF) */
#endif /* !MBEDTLS_PSA_ACCEL_ALG_HKDF */
#endif /* PSA_WANT_ALG_HKDF */
#if defined(PSA_WANT_ALG_RSA)
#if !defined(MBEDTLS_PSA_ACCEL_ALG_RSA)
@ -87,8 +99,8 @@ extern "C" {
#define MBEDTLS_RSA_C
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_OID_C
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_RSA) */
#endif /* defined(PSA_WANT_ALG_RSA) */
#endif /* !MBEDTLS_PSA_ACCEL_ALG_RSA */
#endif /* PSA_WANT_ALG_RSA */
#else /* MBEDTLS_PSA_CRYPTO_CONFIG */
@ -110,6 +122,11 @@ extern "C" {
#define MBEDTLS_PSA_BUILTIN_ALG_ECDH 1
#endif /* MBEDTLS_ECDH_C */
#if defined(MBEDTLS_ECP_C)
#define MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR 1
#define MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY 1
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_MD_C)
#define MBEDTLS_PSA_BUILTIN_ALG_HMAC 1
#endif /* MBEDTLS_MD_C */
@ -118,7 +135,7 @@ extern "C" {
#define MBEDTLS_PSA_BUILTIN_ALG_HKDF 1
#endif /* MBEDTLS_HKDF_C */
#ifdef MBEDTLS_RSA_C
#if defined(MBEDTLS_RSA_C)
#define MBEDTLS_PSA_BUILTIN_ALG_RSA 1
#endif /* MBEDTLS_RSA_C */

2
include/psa/crypto_config.h
View file

@ -53,6 +53,8 @@
#define PSA_WANT_ALG_ECDSA 1
#define PSA_WANT_ALG_DETERMINISTIC_ECDSA 1
#define PSA_WANT_ALG_ECDH 1
#define PSA_WANT_ECC_KEY_PAIR 1
#define PSA_WANT_ECC_PUBLIC_KEY 1
#define PSA_WANT_ALG_HMAC 1
#define PSA_WANT_ALG_HKDF 1
#define PSA_WANT_ALG_RSA 1

36
library/psa_crypto.c
View file

@ -370,7 +370,7 @@ static inline int psa_key_slot_is_external( const psa_key_slot_t *slot )
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
mbedtls_ecp_group_id mbedtls_ecc_group_of_psa( psa_ecc_family_t curve,
size_t byte_length )
{
@ -438,7 +438,7 @@ mbedtls_ecp_group_id mbedtls_ecc_group_of_psa( psa_ecc_family_t curve,
return( MBEDTLS_ECP_DP_NONE );
}
}
#endif /* defined(MBEDTLS_ECP_C) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
static psa_status_t validate_unstructured_key_bit_size( psa_key_type_t type,
size_t bits )
@ -711,7 +711,7 @@ exit:
}
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA) */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
/** Load the contents of a key buffer into an internal ECP representation
*
* \param[in] type The type of key contained in \p data.
@ -930,7 +930,7 @@ exit:
return( PSA_SUCCESS );
}
#endif /* defined(MBEDTLS_ECP_C) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
/** Return the size of the key in the given slot, in bits.
*
@ -1069,12 +1069,12 @@ static psa_status_t psa_import_key_into_slot( psa_key_slot_t *slot,
/* Key format is not supported by any accelerator, try software fallback
* if present. */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
{
return( psa_import_ecp_key( slot, data, data_length ) );
}
#endif /* defined(MBEDTLS_ECP_C) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
#if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA)
if( PSA_KEY_TYPE_IS_RSA( slot->attr.type ) )
{
@ -1647,7 +1647,7 @@ static psa_status_t psa_internal_export_key( const psa_key_slot_t *slot,
}
else
{
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
mbedtls_ecp_keypair *ecp = NULL;
psa_status_t status = psa_load_ecp_representation(
slot->attr.type,
@ -1671,7 +1671,7 @@ static psa_status_t psa_internal_export_key( const psa_key_slot_t *slot,
#else
/* We don't know how to convert a private ECC key to public */
return( PSA_ERROR_NOT_SUPPORTED );
#endif
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
}
}
else
@ -3728,7 +3728,7 @@ psa_status_t psa_sign_hash( psa_key_handle_t handle,
}
else
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA) */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA)
@ -3762,7 +3762,7 @@ psa_status_t psa_sign_hash( psa_key_handle_t handle,
}
}
else
#endif /* defined(MBEDTLS_ECP_C) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
{
status = PSA_ERROR_NOT_SUPPORTED;
}
@ -3829,7 +3829,7 @@ psa_status_t psa_verify_hash( psa_key_handle_t handle,
}
else
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA) */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY)
if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
@ -3856,7 +3856,7 @@ psa_status_t psa_verify_hash( psa_key_handle_t handle,
}
}
else
#endif /* defined(MBEDTLS_ECP_C) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) || defined(MBEDTLS_PSA_BUILTIN_ECC_PUBLIC_KEY) */
{
return( PSA_ERROR_NOT_SUPPORTED );
}
@ -5782,7 +5782,7 @@ psa_status_t psa_key_derivation_input_key(
/* Key agreement */
/****************************************************************/
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) && defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR)
static psa_status_t psa_key_agreement_ecdh( const uint8_t *peer_key,
size_t peer_key_length,
const mbedtls_ecp_keypair *our_key,
@ -5833,7 +5833,7 @@ exit:
return( status );
}
#endif /* MBEDTLS_PSA_BUILTIN_ALG_ECDH */
#endif /* MBEDTLS_PSA_BUILTIN_ALG_ECDH && MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR */
#define PSA_KEY_AGREEMENT_MAX_SHARED_SECRET_SIZE MBEDTLS_ECP_MAX_BYTES
@ -5847,7 +5847,7 @@ static psa_status_t psa_key_agreement_raw_internal( psa_algorithm_t alg,
{
switch( alg )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) && defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR)
case PSA_ALG_ECDH:
if( ! PSA_KEY_TYPE_IS_ECC_KEY_PAIR( private_key->attr.type ) )
return( PSA_ERROR_INVALID_ARGUMENT );
@ -5866,7 +5866,7 @@ static psa_status_t psa_key_agreement_raw_internal( psa_algorithm_t alg,
mbedtls_ecp_keypair_free( ecp );
mbedtls_free( ecp );
return( status );
#endif /* MBEDTLS_PSA_BUILTIN_ALG_ECDH */
#endif /* MBEDTLS_PSA_BUILTIN_ALG_ECDH && MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR */
default:
(void) private_key;
(void) peer_key;
@ -6144,7 +6144,7 @@ static psa_status_t psa_generate_key_internal(
else
#endif /* MBEDTLS_PSA_BUILTIN_ALG_RSA && MBEDTLS_GENPRIME */
#if defined(MBEDTLS_ECP_C)
#if defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR)
if ( PSA_KEY_TYPE_IS_ECC( type ) && PSA_KEY_TYPE_IS_KEY_PAIR( type ) )
{
psa_ecc_family_t curve = PSA_KEY_TYPE_ECC_GET_FAMILY( type );
@ -6189,7 +6189,7 @@ static psa_status_t psa_generate_key_internal(
return( status );
}
else
#endif /* MBEDTLS_ECP_C */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ECC_KEY_PAIR) */
{
return( PSA_ERROR_NOT_SUPPORTED );
}

24
tests/scripts/all.sh
View file

@ -1354,6 +1354,30 @@ component_build_psa_want_ecdh_disabled_software() {
make CC=gcc CFLAGS="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_PSA_ACCEL_ALG_ECDH -I../tests/include -O2" LDFLAGS="$ASAN_CFLAGS"
}
# This should be renamed to test and updated once the accelerator ECC key pair code is in place and ready to test.
component_build_psa_want_ecc_key_pair_disabled_software() {
# full plus MBEDTLS_PSA_CRYPTO_CONFIG with PSA_WANT_ECC_KEY_PAIR
msg "build: full + MBEDTLS_PSA_CRYPTO_CONFIG + PSA_WANT_ECC_KEY_PAIR"
scripts/config.py full
scripts/config.py set MBEDTLS_PSA_CRYPTO_CONFIG
scripts/config.py set MBEDTLS_PSA_CRYPTO_DRIVERS
scripts/config.py unset MBEDTLS_USE_PSA_CRYPTO
# Need to define the correct symbol and include the test driver header path in order to build with the test driver
make CC=gcc CFLAGS="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_PSA_ACCEL_ECC_KEY_PAIR -I../tests/include -O2" LDFLAGS="$ASAN_CFLAGS"
}
# This should be renamed to test and updated once the accelerator ECC public key code is in place and ready to test.
component_build_psa_want_ecc_public_key_disabled_software() {
# full plus MBEDTLS_PSA_CRYPTO_CONFIG with PSA_WANT_ECC_PUBLIC_KEY
msg "build: full + MBEDTLS_PSA_CRYPTO_CONFIG + PSA_WANT_ECC_PUBLIC_KEY"
scripts/config.py full
scripts/config.py set MBEDTLS_PSA_CRYPTO_CONFIG
scripts/config.py set MBEDTLS_PSA_CRYPTO_DRIVERS
scripts/config.py unset MBEDTLS_USE_PSA_CRYPTO
# Need to define the correct symbol and include the test driver header path in order to build with the test driver
make CC=gcc CFLAGS="$ASAN_CFLAGS -DPSA_CRYPTO_DRIVER_TEST -DMBEDTLS_PSA_ACCEL_ECC_PUBLIC_KEY -I../tests/include -O2" LDFLAGS="$ASAN_CFLAGS"
}
# This should be renamed to test and updated once the accelerator HMAC code is in place and ready to test.
component_build_psa_want_hmac_disabled_software() {
# full plus MBEDTLS_PSA_CRYPTO_CONFIG with PSA_WANT_ALG_HMAC