yuzu/mbedtls
1
0
Fork 0
mirror of https://github.com/yuzu-emu/mbedtls.git synced 2025-02-24 08:26:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update guards in PSA crypto library for ECDSA and DETERMINISTIC support

Browse source 
In the PSA crypto library, the code for verification of ECDSA is the same for
both MBEDTLS_PSA_BUILTIN_ALG_ECDSA and
MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA. So, the guards should allow for
either one to enable the code blocks. The original implementation only had
the check for ECDSA. In order to make this work, config_psa.h was updated
to ensure when MBEDTLS_CRYPTO_CONFIG is disabled, the setting for DETERMINISTIC
is only updated if MBEDTLS_ECDSA_C is also enabled.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
This commit is contained in:
John Durkop 2020-10-26 15:25:23 -07:00
parent e7012c7725
commit f87e3aea16
2 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
include/mbedtls/config_psa.h
View file

@ -65,12 +65,14 @@ extern "C" {
*/
#if defined(MBEDTLS_ECDSA_C)
#define MBEDTLS_PSA_BUILTIN_ALG_ECDSA
#endif /* MBEDTLS_ECDSA_C */
// Only add in DETERMINISTIC support if ECDSA is also enabled
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
#define MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
#endif /* MBEDTLS_ECDSA_C */
#endif /* MBEDTLS_PSA_CRYPTO_CONFIG */
#ifdef __cplusplus

8
library/psa_crypto.c
View file

@ -3530,7 +3530,7 @@ static psa_status_t psa_rsa_verify( mbedtls_rsa_context *rsa,
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA)
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
/* `ecp` cannot be const because `ecp->grp` needs to be non-const
* for mbedtls_ecdsa_sign() and mbedtls_ecdsa_sign_det()
* (even though these functions don't modify it). */
@ -3629,7 +3629,7 @@ cleanup:
mbedtls_mpi_free( &s );
return( mbedtls_to_psa_error( ret ) );
}
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA */
psa_status_t psa_sign_hash( psa_key_handle_t handle,
psa_algorithm_t alg,
@ -3799,7 +3799,7 @@ psa_status_t psa_verify_hash( psa_key_handle_t handle,
#if defined(MBEDTLS_ECP_C)
if( PSA_KEY_TYPE_IS_ECC( slot->attr.type ) )
{
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA)
#if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
if( PSA_ALG_IS_ECDSA( alg ) )
{
mbedtls_ecp_keypair *ecp = NULL;
@ -3817,7 +3817,7 @@ psa_status_t psa_verify_hash( psa_key_handle_t handle,
return( status );
}
else
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) */
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) */
{
return( PSA_ERROR_INVALID_ARGUMENT );
}