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add rsa_pss_rsae_* support in tls12

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2022-06-23 14:02:28 +08:00
parent 257319a33e
commit 693a47ab1d
2 changed files with 55 additions and 90 deletions
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24
library/ssl_tls.c
View file

@ -4355,18 +4355,6 @@ static uint16_t ssl_preset_default_sig_algs[] = {
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_SHA384_C &&
MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA512_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA512_C */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA384_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA384_C */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA256_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA256_C */
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && defined(MBEDTLS_SHA512_C)
MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512,
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_SHA512_C */
@ -4379,6 +4367,18 @@ static uint16_t ssl_preset_default_sig_algs[] = {
MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256,
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_SHA256_C */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA512_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA512_C */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA384_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA384_C */
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA256_C)
MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256,
#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA256_C */
MBEDTLS_TLS_SIG_NONE
};

121
library/ssl_tls12_client.c
View file

@ -2041,66 +2041,6 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end,
mbedtls_md_type_t *md_alg,
mbedtls_pk_type_t *pk_alg )
{
*md_alg = MBEDTLS_MD_NONE;
*pk_alg = MBEDTLS_PK_NONE;
if( (*p) + 2 > end )
return( MBEDTLS_ERR_SSL_DECODE_ERROR );
/*
* Get hash algorithm
*/
if( ( *md_alg = mbedtls_ssl_md_alg_from_hash( (*p)[0] ) )
== MBEDTLS_MD_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "Server used unsupported HashAlgorithm %d", *(p)[0] ) );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
/*
* Get signature algorithm
*/
if( ( *pk_alg = mbedtls_ssl_pk_alg_from_sig( (*p)[1] ) )
== MBEDTLS_PK_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "server used unsupported SignatureAlgorithm %d", (*p)[1] ) );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
/*
* Check if the signature algorithm is acceptable
*/
if( !mbedtls_ssl_sig_alg_is_offered( ssl, MBEDTLS_GET_UINT16_BE( *p, 0 ) ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "server used HashAlgorithm %d that was not offered", *(p)[0] ) );
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used SignatureAlgorithm %d",
(*p)[1] ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used HashAlgorithm %d",
(*p)[0] ) );
*p += 2;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
@ -2398,14 +2338,31 @@ start_processing:
unsigned char *params = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
size_t params_len = p - params;
void *rs_ctx = NULL;
uint16_t sig_alg;
mbedtls_pk_context * peer_pk;
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
peer_pk = &ssl->handshake->peer_pubkey;
#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
if( ssl->session_negotiate->peer_cert == NULL )
{
/* Should never happen */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
peer_pk = &ssl->session_negotiate->peer_cert->pk;
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/*
* Handle the digitally-signed structure
*/
if( ssl_parse_signature_algorithm( ssl, &p, end,
&md_alg, &pk_alg ) != 0 )
MBEDTLS_SSL_CHK_BUF_READ_PTR( p, end, 2 );
sig_alg = MBEDTLS_GET_UINT16_BE( p, 0 );
if( mbedtls_ssl_tls13_get_pk_type_and_md_alg_from_sig_alg(
sig_alg, &pk_alg, &md_alg ) != 0 &&
! mbedtls_ssl_sig_alg_is_offered( ssl, sig_alg ) &&
! mbedtls_ssl_sig_alg_is_supported( ssl, sig_alg ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "bad server key exchange message" ) );
@ -2415,9 +2372,9 @@ start_processing:
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
p += 2;
if( pk_alg !=
mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) )
if( !mbedtls_pk_can_do( peer_pk, pk_alg ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "bad server key exchange message" ) );
@ -2475,18 +2432,6 @@ start_processing:
MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
peer_pk = &ssl->handshake->peer_pubkey;
#else /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
if( ssl->session_negotiate->peer_cert == NULL )
{
/* Should never happen */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
peer_pk = &ssl->session_negotiate->peer_cert->pk;
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/*
* Verify signature
*/
@ -2505,8 +2450,28 @@ start_processing:
rs_ctx = &ssl->handshake->ecrs_ctx.pk;
#endif
if( ( ret = mbedtls_pk_verify_restartable( peer_pk,
md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 )
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
if( pk_alg == MBEDTLS_PK_RSASSA_PSS )
{
const mbedtls_md_info_t* md_info;
mbedtls_pk_rsassa_pss_options rsassa_pss_options;
rsassa_pss_options.mgf1_hash_id = md_alg;
if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL )
{
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
rsassa_pss_options.expected_salt_len = mbedtls_md_get_size( md_info );
ret = mbedtls_pk_verify_ext( pk_alg, &rsassa_pss_options,
peer_pk,
md_alg, hash, hashlen,
p, sig_len );
}
else
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
ret = mbedtls_pk_verify_restartable( peer_pk,
md_alg, hash, hashlen, p, sig_len, rs_ctx );
if( ret != 0 )
{
#if defined(MBEDTLS_SSL_ECP_RESTARTABLE_ENABLED)
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )