Merge remote-tracking branch 'origin/pr/2355' into development-psa
diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
index fced2cb..f1148af 100644
--- a/include/mbedtls/ssl_internal.h
+++ b/include/mbedtls/ssl_internal.h
@@ -765,6 +765,7 @@
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
+/* The hash buffer must have at least MBEDTLS_MD_MAX_SIZE bytes of length. */
int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
unsigned char *hash, size_t *hashlen,
unsigned char *data, size_t data_len,
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index fca03fc..28d1886 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -50,6 +50,11 @@
#include <string.h>
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#include "mbedtls/psa_util.h"
+#include "psa/crypto.h"
+#endif
+
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#include "mbedtls/oid.h"
#endif
@@ -10046,6 +10051,70 @@
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
+ unsigned char *hash, size_t *hashlen,
+ unsigned char *data, size_t data_len,
+ mbedtls_md_type_t md_alg )
+{
+ psa_status_t status;
+ psa_hash_operation_t hash_operation;
+ psa_algorithm_t hash_alg = mbedtls_psa_translate_md( md_alg );
+
+ MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based computation of digest of ServerKeyExchange" ) );
+
+ if( ( status = psa_hash_setup( &hash_operation,
+ hash_alg ) ) != PSA_SUCCESS )
+ {
+ MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_setup", status );
+ goto exit;
+ }
+
+ if( ( status = psa_hash_update( &hash_operation, ssl->handshake->randbytes,
+ 64 ) ) != PSA_SUCCESS )
+ {
+ MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
+ goto exit;
+ }
+
+ if( ( status = psa_hash_update( &hash_operation,
+ data, data_len ) ) != PSA_SUCCESS )
+ {
+ MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_update", status );
+ goto exit;
+ }
+
+ if( ( status = psa_hash_finish( &hash_operation, hash, MBEDTLS_MD_MAX_SIZE,
+ hashlen ) ) != PSA_SUCCESS )
+ {
+ MBEDTLS_SSL_DEBUG_RET( 1, "psa_hash_finish", status );
+ goto exit;
+ }
+
+exit:
+ if( status != PSA_SUCCESS )
+ {
+ mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
+ MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
+ switch( status )
+ {
+ case PSA_ERROR_NOT_SUPPORTED:
+ return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
+ case PSA_ERROR_BAD_STATE: /* Intentional fallthrough */
+ case PSA_ERROR_BUFFER_TOO_SMALL:
+ return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
+ case PSA_ERROR_INSUFFICIENT_MEMORY:
+ return( MBEDTLS_ERR_MD_ALLOC_FAILED );
+ default:
+ return( MBEDTLS_ERR_MD_HW_ACCEL_FAILED );
+ }
+ }
+ return( 0 );
+}
+
+#else
+
int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
unsigned char *hash, size_t *hashlen,
unsigned char *data, size_t data_len,
@@ -10056,6 +10125,8 @@
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
*hashlen = mbedtls_md_get_size( md_info );
+ MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform mbedtls-based computation of digest of ServerKeyExchange" ) );
+
mbedtls_md_init( &ctx );
/*
@@ -10100,6 +10171,8 @@
return( ret );
}
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 2ccecc4..30753b7 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -765,6 +765,7 @@
-C "Failed to setup PSA-based cipher context"\
-S "Failed to setup PSA-based cipher context"\
-s "Protocol is TLSv1.2" \
+ -c "Perform PSA-based computation of digest of ServerKeyExchange" \
-S "error" \
-C "error"
}