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Fix error status for PSA RSA-OAEP unknown hash

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
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Manuel Pégourié-Gonnard 2023-05-31 10:48:38 +02:00
parent 70aa2a110e
commit eb5920421c
1 changed files with 6 additions and 0 deletions
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6
library/psa_crypto_rsa.c
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@ -529,6 +529,12 @@ static int psa_rsa_oaep_set_padding_mode(psa_algorithm_t alg,
psa_algorithm_t hash_alg = PSA_ALG_RSA_OAEP_GET_HASH(alg);
mbedtls_md_type_t md_alg = mbedtls_md_type_from_psa_alg(hash_alg);
/* Just to get the error status right, as rsa_set_padding() doesn't
* distinguish between "bad RSA algorithm" and "unknown hash". */
if (mbedtls_md_info_from_type(md_alg) == NULL) {
return PSA_ERROR_NOT_SUPPORTED;
}
return mbedtls_rsa_set_padding(rsa, MBEDTLS_RSA_PKCS_V21, md_alg);
}
#endif /* defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP) */