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Rename and rewrite mbedtls_ssl_sig_hash_set_find function

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Rename `mbedtls_ssl_sig_hash_set_find` function to a suitable name
and rewrite to operate TLS signature algorithm identifiers.

Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
This commit is contained in:
Gabor Mezei
2022-05-10 12:44:09 +02:00
parent 1226590c88
commit a3d016ce41
3 changed files with 36 additions and 18 deletions
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21
library/ssl_tls.c
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@ -7653,25 +7653,24 @@ exit:
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
/* Find an entry in a signature-hash set matching a given sign algorithm. */
mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_context *ssl,
mbedtls_pk_type_t pk_alg )
/* Find the preferred hash for a given signature algorithm. */
unsigned int mbedtls_ssl_tls12_get_preferred_hash_for_sig_alg(
mbedtls_ssl_context *ssl,
unsigned int sig_alg )
{
unsigned int i;
uint16_t sig_alg = mbedtls_ssl_sig_from_pk_alg( pk_alg );
uint16_t *set = ssl->handshake->received_sig_algs;
uint16_t invalid_sig_alg = MBEDTLS_TLS_SIG_NONE;
uint16_t *received_sig_algs = ssl->handshake->received_sig_algs;
if( sig_alg == MBEDTLS_SSL_SIG_ANON )
return( MBEDTLS_MD_NONE );
return( MBEDTLS_SSL_HASH_NONE );
for( i = 0; set[i] != invalid_sig_alg; i++ )
for( i = 0; received_sig_algs[i] != MBEDTLS_TLS_SIG_NONE; i++ )
{
if( sig_alg == MBEDTLS_SSL_SIG_FROM_SIG_ALG( set[i] ) )
return MBEDTLS_SSL_HASH_FROM_SIG_ALG( set[i] );
if( sig_alg == MBEDTLS_SSL_SIG_FROM_SIG_ALG( received_sig_algs[i] ) )
return MBEDTLS_SSL_HASH_FROM_SIG_ALG( received_sig_algs[i] );
}
return( MBEDTLS_MD_NONE );
return( MBEDTLS_SSL_HASH_NONE );
}
#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */