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Use safer deterministic function in psa_ecdsa_sign

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This commit is contained in:
Darryl Green 2019-09-05 14:06:34 +01:00
parent 75f2c20f9c
commit 5e843fa133
1 changed files with 5 additions and 3 deletions
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8
library/psa_crypto.c
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@ -3271,9 +3271,11 @@ static psa_status_t psa_ecdsa_sign( mbedtls_ecp_keypair *ecp,
psa_algorithm_t hash_alg = PSA_ALG_SIGN_GET_HASH( alg );
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_psa( hash_alg );
mbedtls_md_type_t md_alg = mbedtls_md_get_type( md_info );
MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det( &ecp->grp, &r, &s, &ecp->d,
hash, hash_length,
md_alg ) );
MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign_det_ext( &ecp->grp, &r, &s,
&ecp->d, hash,
hash_length, md_alg,
mbedtls_ctr_drbg_random,
&global_data.ctr_drbg ) );
}
else
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */