diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h index f030bea94e..f2f5400853 100644 --- a/include/mbedtls/psa_util.h +++ b/include/mbedtls/psa_util.h @@ -264,22 +264,6 @@ static inline int mbedtls_psa_get_ecc_oid_from_id( #define MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH \ PSA_KEY_EXPORT_ECC_PUBLIC_KEY_MAX_SIZE( PSA_VENDOR_ECC_MAX_CURVE_BITS ) -/* This function transforms an ECC group identifier from - * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8 - * into a PSA ECC group identifier. */ -#if defined(MBEDTLS_ECP_C) -static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group( - uint16_t tls_ecc_grp_reg_id, size_t *bits ) -{ - const mbedtls_ecp_curve_info *curve_info = - mbedtls_ecp_curve_info_from_tls_id( tls_ecc_grp_reg_id ); - if( curve_info == NULL ) - return( 0 ); - return( PSA_KEY_TYPE_ECC_KEY_PAIR( - mbedtls_ecc_group_to_psa( curve_info->grp_id, bits ) ) ); -} -#endif /* MBEDTLS_ECP_C */ - /* Expose whatever RNG the PSA subsystem uses to applications using the * mbedtls_xxx API. The declarations and definitions here need to be * consistent with the implementation in library/psa_crypto_random_impl.h. diff --git a/library/ssl_client.c b/library/ssl_client.c index e838845940..d1a66401f4 100644 --- a/library/ssl_client.c +++ b/library/ssl_client.c @@ -266,15 +266,17 @@ static int ssl_write_supported_groups_ext( mbedtls_ssl_context *ssl, ( mbedtls_ssl_conf_is_tls12_enabled( ssl->conf ) && mbedtls_ssl_tls12_named_group_is_ecdhe( *group_list ) ) ) { - const mbedtls_ecp_curve_info *curve_info; - curve_info = mbedtls_ecp_curve_info_from_tls_id( *group_list ); - if( curve_info == NULL ) + if( mbedtls_ssl_get_ecp_group_id_from_tls_id( *group_list ) == + MBEDTLS_ECP_DP_NONE ) + { continue; + } MBEDTLS_SSL_CHK_BUF_PTR( p, end, 2 ); MBEDTLS_PUT_UINT16_BE( *group_list, p, 0 ); p += 2; MBEDTLS_SSL_DEBUG_MSG( 3, ( "NamedGroup: %s ( %x )", - curve_info->name, *group_list ) ); + mbedtls_ssl_get_curve_name_from_tls_id( *group_list ), + *group_list ) ); } #endif /* MBEDTLS_ECP_C */ /* Add DHE groups here */ diff --git a/library/ssl_misc.h b/library/ssl_misc.h index 82549642fe..acb38cf811 100644 --- a/library/ssl_misc.h +++ b/library/ssl_misc.h @@ -787,7 +787,7 @@ struct mbedtls_ssl_handshake_params #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) - const mbedtls_ecp_curve_info **curves; /*!< Supported elliptic curves */ + uint16_t *curves_tls_id; /*!< List of TLS IDs of supported elliptic curves */ #endif #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED) @@ -1576,6 +1576,69 @@ MBEDTLS_CHECK_RETURN_CRITICAL int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ); #endif +/** + * \brief Return PSA EC info for the specified TLS ID. + * + * \param tls_id The TLS ID to look for + * \param family If the TLD ID is supported, then proper \c psa_ecc_family_t + * value is returned here. Can be NULL. + * \param bits If the TLD ID is supported, then proper bit size is returned + * here. Can be NULL. + * \return PSA_SUCCESS if the TLS ID is supported, + * PSA_ERROR_NOT_SUPPORTED otherwise + * + * \note If either \c family or \c bits parameters are NULL, then + * the corresponding value is not returned. + * The function can be called with both parameters as NULL + * simply to check if a specific TLS ID is supported. + */ +int mbedtls_ssl_get_psa_curve_info_from_tls_id( uint16_t tls_id, + psa_ecc_family_t *family, + size_t* bits ); + +/** + * \brief Return \c mbedtls_ecp_group_id for the specified TLS ID. + * + * \param tls_id The TLS ID to look for + * \return Proper \c mbedtls_ecp_group_id if the TLS ID is supported, + * or MBEDTLS_ECP_DP_NONE otherwise + */ +mbedtls_ecp_group_id mbedtls_ssl_get_ecp_group_id_from_tls_id( uint16_t tls_id ); + +/** + * \brief Return TLS ID for the specified \c mbedtls_ecp_group_id. + * + * \param grp_id The \c mbedtls_ecp_group_id ID to look for + * \return Proper TLS ID if the \c mbedtls_ecp_group_id is supported, + * or 0 otherwise + */ +uint16_t mbedtls_ssl_get_tls_id_from_ecp_group_id( mbedtls_ecp_group_id grp_id ); + +/** + * \brief Return EC's name for the specified TLS ID. + * + * \param tls_id The TLS ID to look for + * \return A pointer to a const string with the proper name. If TLS + * ID is not suppoted, a NULL pointer is returned insted. + */ +const char* mbedtls_ssl_get_curve_name_from_tls_id( uint16_t tls_id ); + +/* This function transforms an ECC group identifier from + * https://www.iana.org/assignments/tls-parameters/tls-parameters.xhtml#tls-parameters-8 + * into a PSA ECC group identifier. */ +#if defined(MBEDTLS_ECP_C) +static inline psa_key_type_t mbedtls_psa_parse_tls_ecc_group( + uint16_t tls_ecc_grp_reg_id, size_t *bits ) +{ + mbedtls_ecp_group_id grp_id = + mbedtls_ssl_get_ecp_group_id_from_tls_id( tls_ecc_grp_reg_id ); + if( grp_id == MBEDTLS_ECP_DP_NONE ) + return( 0 ); + return( PSA_KEY_TYPE_ECC_KEY_PAIR( + mbedtls_ecc_group_to_psa( grp_id, bits ) ) ); +} +#endif /* MBEDTLS_ECP_C */ + #if defined(MBEDTLS_SSL_DTLS_SRTP) static inline mbedtls_ssl_srtp_profile mbedtls_ssl_check_srtp_profile_value ( const uint16_t srtp_profile_value ) @@ -2173,9 +2236,8 @@ static inline int mbedtls_ssl_named_group_is_supported( uint16_t named_group ) #if defined(MBEDTLS_ECDH_C) if( mbedtls_ssl_tls13_named_group_is_ecdhe( named_group ) ) { - const mbedtls_ecp_curve_info *curve_info = - mbedtls_ecp_curve_info_from_tls_id( named_group ); - if( curve_info != NULL ) + if( mbedtls_ssl_get_ecp_group_id_from_tls_id( named_group ) != + MBEDTLS_ECP_DP_NONE ) return( 1 ); } #else diff --git a/library/ssl_tls.c b/library/ssl_tls.c index b757613171..dbee389616 100644 --- a/library/ssl_tls.c +++ b/library/ssl_tls.c @@ -1064,14 +1064,14 @@ static int ssl_handshake_init( mbedtls_ssl_context *ssl ) for( size_t i = 0; i < length; i++ ) { - const mbedtls_ecp_curve_info *info = - mbedtls_ecp_curve_info_from_grp_id( curve_list[i] ); - if ( info == NULL ) + uint16_t tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( + curve_list[i] ); + if ( tls_id == 0 ) { mbedtls_free( group_list ); return( MBEDTLS_ERR_SSL_BAD_CONFIG ); } - group_list[i] = info->tls_id; + group_list[i] = tls_id; } group_list[length] = 0; @@ -4048,7 +4048,7 @@ void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl ) #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \ defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) /* explicit void pointer cast for buggy MS compiler */ - mbedtls_free( (void *) handshake->curves ); + mbedtls_free( (void *) handshake->curves_tls_id ); #endif #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_PSK_ENABLED) @@ -5468,18 +5468,118 @@ int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls */ int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id ) { - const mbedtls_ecp_curve_info *grp_info = - mbedtls_ecp_curve_info_from_grp_id( grp_id ); + uint16_t tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( grp_id ); - if ( grp_info == NULL ) + if ( tls_id == 0 ) return -1; - uint16_t tls_id = grp_info->tls_id; - return mbedtls_ssl_check_curve_tls_id( ssl, tls_id ); } #endif /* MBEDTLS_ECP_C */ +static const struct { + uint16_t tls_id; + mbedtls_ecp_group_id ecp_group_id; + psa_ecc_family_t psa_family; + uint16_t bits; + const char* name; +} tls_id_match_table[] = +{ +#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_521) + { 25, MBEDTLS_ECP_DP_SECP521R1, PSA_ECC_FAMILY_SECP_R1, 521, "secp521r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512) + { 28, MBEDTLS_ECP_DP_BP512R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 512, "brainpoolP512r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384) + { 24, MBEDTLS_ECP_DP_SECP384R1, PSA_ECC_FAMILY_SECP_R1, 384, "secp384r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384) + { 27, MBEDTLS_ECP_DP_BP384R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 384, "brainpoolP384r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256) + { 23, MBEDTLS_ECP_DP_SECP256R1, PSA_ECC_FAMILY_SECP_R1, 256, "secp256r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_256) + { 22, MBEDTLS_ECP_DP_SECP256K1, PSA_ECC_FAMILY_SECP_K1, 256, "secp256k1" }, +#endif +#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256) + { 26, MBEDTLS_ECP_DP_BP256R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 256, "brainpoolP256r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_224) + { 21, MBEDTLS_ECP_DP_SECP224R1, PSA_ECC_FAMILY_SECP_R1, 224, "secp224r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_224) + { 20, MBEDTLS_ECP_DP_SECP224K1, PSA_ECC_FAMILY_SECP_K1, 224, "secp224k1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_192) + { 19, MBEDTLS_ECP_DP_SECP192R1, PSA_ECC_FAMILY_SECP_R1, 192, "secp192r1" }, +#endif +#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_192) + { 18, MBEDTLS_ECP_DP_SECP192K1, PSA_ECC_FAMILY_SECP_K1, 192, "secp192k1" }, +#endif +#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255) + { 29, MBEDTLS_ECP_DP_CURVE25519, PSA_ECC_FAMILY_MONTGOMERY, 256, "x25519" }, +#endif +#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_448) + { 30, MBEDTLS_ECP_DP_CURVE448, PSA_ECC_FAMILY_MONTGOMERY, 448, "x448" }, +#endif + { 0, MBEDTLS_ECP_DP_NONE, 0, 0, NULL }, +}; + +int mbedtls_ssl_get_psa_curve_info_from_tls_id( uint16_t tls_id, + psa_ecc_family_t *family, + size_t* bits ) +{ + for( int i = 0; tls_id_match_table[i].tls_id != 0; i++ ) + { + if( tls_id_match_table[i].tls_id == tls_id ) + { + if( family != NULL ) + *family = tls_id_match_table[i].psa_family; + if( bits != NULL ) + *bits = tls_id_match_table[i].bits; + return PSA_SUCCESS; + } + } + + return PSA_ERROR_NOT_SUPPORTED; +} + +mbedtls_ecp_group_id mbedtls_ssl_get_ecp_group_id_from_tls_id( uint16_t tls_id ) +{ + for( int i = 0; tls_id_match_table[i].tls_id != 0; i++ ) + { + if( tls_id_match_table[i].tls_id == tls_id ) + return tls_id_match_table[i].ecp_group_id; + } + + return MBEDTLS_ECP_DP_NONE; +} + +uint16_t mbedtls_ssl_get_tls_id_from_ecp_group_id( mbedtls_ecp_group_id grp_id ) +{ + for( int i = 0; tls_id_match_table[i].ecp_group_id != MBEDTLS_ECP_DP_NONE; + i++ ) + { + if( tls_id_match_table[i].ecp_group_id == grp_id ) + return tls_id_match_table[i].tls_id; + } + + return 0; +} + +const char* mbedtls_ssl_get_curve_name_from_tls_id( uint16_t tls_id ) +{ + for( int i = 0; tls_id_match_table[i].tls_id != 0; i++ ) + { + if( tls_id_match_table[i].tls_id == tls_id ) + return tls_id_match_table[i].name; + } + + return NULL; +} + #if defined(MBEDTLS_X509_CRT_PARSE_C) int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert, const mbedtls_ssl_ciphersuite_t *ciphersuite, diff --git a/library/ssl_tls12_client.c b/library/ssl_tls12_client.c index 76588d30b4..7c54820f33 100644 --- a/library/ssl_tls12_client.c +++ b/library/ssl_tls12_client.c @@ -1870,7 +1870,7 @@ static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl, MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) { - const mbedtls_ecp_curve_info *curve_info; + uint16_t tls_id; mbedtls_ecp_group_id grp_id; #if defined(MBEDTLS_ECDH_LEGACY_CONTEXT) grp_id = ssl->handshake->ecdh_ctx.grp.id; @@ -1878,14 +1878,15 @@ static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl ) grp_id = ssl->handshake->ecdh_ctx.grp_id; #endif - curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id ); - if( curve_info == NULL ) + tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( grp_id ); + if( tls_id == 0 ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) ); return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", + mbedtls_ssl_get_curve_name_from_tls_id( tls_id ) ) ); if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 ) return( -1 ); @@ -2346,16 +2347,16 @@ start_processing: * that TLS ID here */ uint16_t read_tls_id = MBEDTLS_GET_UINT16_BE( p, 1 ); - const mbedtls_ecp_curve_info *curve_info; + uint16_t exp_tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( + MBEDTLS_ECP_DP_SECP256R1 ); - if( ( curve_info = mbedtls_ecp_curve_info_from_grp_id( - MBEDTLS_ECP_DP_SECP256R1 ) ) == NULL ) + if( exp_tls_id == 0 ) { return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); } if( ( *p != MBEDTLS_ECP_TLS_NAMED_CURVE ) || - ( read_tls_id != curve_info->tls_id ) ) + ( read_tls_id != exp_tls_id ) ) { return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER ); } diff --git a/library/ssl_tls12_server.c b/library/ssl_tls12_server.c index 5cdbcc0163..a90617f9a6 100644 --- a/library/ssl_tls12_server.c +++ b/library/ssl_tls12_server.c @@ -180,7 +180,7 @@ static int ssl_parse_supported_groups_ext( mbedtls_ssl_context *ssl, { size_t list_size, our_size; const unsigned char *p; - const mbedtls_ecp_curve_info *curve_info, **curves; + uint16_t *curves_tls_id; if ( len < 2 ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); @@ -199,7 +199,7 @@ static int ssl_parse_supported_groups_ext( mbedtls_ssl_context *ssl, } /* Should never happen unless client duplicates the extension */ - if( ssl->handshake->curves != NULL ) + if( ssl->handshake->curves_tls_id != NULL ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) ); mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, @@ -213,23 +213,25 @@ static int ssl_parse_supported_groups_ext( mbedtls_ssl_context *ssl, if( our_size > MBEDTLS_ECP_DP_MAX ) our_size = MBEDTLS_ECP_DP_MAX; - if( ( curves = mbedtls_calloc( our_size, sizeof( *curves ) ) ) == NULL ) + if( ( curves_tls_id = mbedtls_calloc( our_size, + sizeof( *curves_tls_id ) ) ) == NULL ) { mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR ); return( MBEDTLS_ERR_SSL_ALLOC_FAILED ); } - ssl->handshake->curves = curves; + ssl->handshake->curves_tls_id = curves_tls_id; p = buf + 2; while( list_size > 0 && our_size > 1 ) { - curve_info = mbedtls_ecp_curve_info_from_tls_id( ( p[0] << 8 ) | p[1] ); + uint16_t curr_tls_id = MBEDTLS_GET_UINT16_BE( p, 0 ); - if( curve_info != NULL ) + if( mbedtls_ssl_get_ecp_group_id_from_tls_id( curr_tls_id ) != + MBEDTLS_ECP_DP_NONE ) { - *curves++ = curve_info; + *curves_tls_id++ = curr_tls_id; our_size--; } @@ -685,16 +687,18 @@ static int ssl_parse_use_srtp_ext( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDSA_C) MBEDTLS_CHECK_RETURN_CRITICAL static int ssl_check_key_curve( mbedtls_pk_context *pk, - const mbedtls_ecp_curve_info **curves ) + uint16_t *curves_tls_id ) { - const mbedtls_ecp_curve_info **crv = curves; + uint16_t *curr_tls_id = curves_tls_id; mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id; + mbedtls_ecp_group_id curr_grp_id; - while( *crv != NULL ) + while( *curr_tls_id != 0 ) { - if( (*crv)->grp_id == grp_id ) + curr_grp_id = mbedtls_ssl_get_ecp_group_id_from_tls_id( *curr_tls_id ); + if( curr_grp_id == grp_id ) return( 0 ); - crv++; + curr_tls_id++; } return( -1 ); @@ -789,7 +793,8 @@ static int ssl_pick_cert( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDSA_C) if( pk_alg == MBEDTLS_PK_ECDSA && - ssl_check_key_curve( &cur->cert->pk, ssl->handshake->curves ) != 0 ) + ssl_check_key_curve( &cur->cert->pk, + ssl->handshake->curves_tls_id ) != 0 ) { MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) ); continue; @@ -857,8 +862,8 @@ static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id, #if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) && - ( ssl->handshake->curves == NULL || - ssl->handshake->curves[0] == NULL ) ) + ( ssl->handshake->curves_tls_id == NULL || + ssl->handshake->curves_tls_id[0] == 0 ) ) { MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: " "no common elliptic curve" ) ); @@ -2849,7 +2854,6 @@ static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl, ssl->out_msglen; size_t output_offset = 0; size_t output_len = 0; - const mbedtls_ecp_curve_info *curve_info; /* * The first 3 bytes are: @@ -2859,13 +2863,14 @@ static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl, * However since we only support secp256r1 for now, we hardcode its * TLS ID here */ - if( ( curve_info = mbedtls_ecp_curve_info_from_grp_id( - MBEDTLS_ECP_DP_SECP256R1 ) ) == NULL ) + uint16_t tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( + MBEDTLS_ECP_DP_SECP256R1 ); + if( tls_id ==0 ) { return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE ); } *out_p = MBEDTLS_ECP_TLS_NAMED_CURVE; - MBEDTLS_PUT_UINT16_BE( curve_info->tls_id, out_p, 1 ); + MBEDTLS_PUT_UINT16_BE( tls_id, out_p, 1 ); output_offset += 3; ret = mbedtls_psa_ecjpake_write_round( &ssl->handshake->psa_pake_ctx, @@ -2986,27 +2991,29 @@ static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl, * ECPoint public; * } ServerECDHParams; */ - const mbedtls_ecp_curve_info **curve = NULL; + uint16_t *curr_tls_id = ssl->handshake->curves_tls_id; const uint16_t *group_list = mbedtls_ssl_get_groups( ssl ); int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; size_t len = 0; /* Match our preference list against the offered curves */ - if( group_list == NULL ) + if( ( group_list == NULL ) || ( curr_tls_id == NULL ) ) return( MBEDTLS_ERR_SSL_BAD_CONFIG ); for( ; *group_list != 0; group_list++ ) - for( curve = ssl->handshake->curves; *curve != NULL; curve++ ) - if( (*curve)->tls_id == *group_list ) + for( curr_tls_id = ssl->handshake->curves_tls_id; + *curr_tls_id != 0; curr_tls_id++ ) + if( *curr_tls_id == *group_list ) goto curve_matching_done; curve_matching_done: - if( curve == NULL || *curve == NULL ) + if( *curr_tls_id == 0 ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) ); return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE ); } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", (*curve)->name ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", + mbedtls_ssl_get_curve_name_from_tls_id(*curr_tls_id) ) ); #if defined(MBEDTLS_USE_PSA_CRYPTO) psa_status_t status = PSA_ERROR_GENERIC_ERROR; @@ -3022,7 +3029,7 @@ curve_matching_done: /* Convert EC group to PSA key type. */ handshake->ecdh_psa_type = mbedtls_psa_parse_tls_ecc_group( - (*curve)->tls_id, &ecdh_bits ); + *curr_tls_id, &ecdh_bits ); if( handshake->ecdh_psa_type == 0 ) { @@ -3047,7 +3054,7 @@ curve_matching_done: /* * Next two bytes are the namedcurve value */ - MBEDTLS_PUT_UINT16_BE( (*curve)->tls_id, p, 0 ); + MBEDTLS_PUT_UINT16_BE( *curr_tls_id, p, 0 ); p += 2; /* Generate ECDH private key. */ @@ -3093,8 +3100,11 @@ curve_matching_done: /* Determine full message length. */ len += header_size; #else + mbedtls_ecp_group_id curr_grp_id = + mbedtls_ssl_get_ecp_group_id_from_tls_id( *curr_tls_id ); + if( ( ret = mbedtls_ecdh_setup( &ssl->handshake->ecdh_ctx, - (*curve)->grp_id ) ) != 0 ) + curr_grp_id ) ) != 0 ) { MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret ); return( ret ); diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c index 839b954452..b43bb5f71c 100644 --- a/library/ssl_tls13_client.c +++ b/library/ssl_tls13_client.c @@ -230,9 +230,8 @@ static int ssl_tls13_get_default_group_id( mbedtls_ssl_context *ssl, for ( ; *group_list != 0; group_list++ ) { - const mbedtls_ecp_curve_info *curve_info; - curve_info = mbedtls_ecp_curve_info_from_tls_id( *group_list ); - if( curve_info != NULL && + if( ( mbedtls_ssl_get_psa_curve_info_from_tls_id( *group_list, + NULL, NULL ) == PSA_SUCCESS ) && mbedtls_ssl_tls13_named_group_is_ecdhe( *group_list ) ) { *group_id = *group_list; @@ -385,7 +384,6 @@ static int ssl_tls13_parse_hrr_key_share_ext( mbedtls_ssl_context *ssl, const unsigned char *end ) { #if defined(MBEDTLS_ECDH_C) - const mbedtls_ecp_curve_info *curve_info = NULL; const unsigned char *p = buf; int selected_group; int found = 0; @@ -412,8 +410,9 @@ static int ssl_tls13_parse_hrr_key_share_ext( mbedtls_ssl_context *ssl, */ for( ; *group_list != 0; group_list++ ) { - curve_info = mbedtls_ecp_curve_info_from_tls_id( *group_list ); - if( curve_info == NULL || curve_info->tls_id != selected_group ) + if( ( mbedtls_ssl_get_psa_curve_info_from_tls_id( *group_list, + NULL, NULL ) == PSA_ERROR_NOT_SUPPORTED ) || + *group_list != selected_group ) continue; /* We found a match */ @@ -493,15 +492,15 @@ static int ssl_tls13_parse_key_share_ext( mbedtls_ssl_context *ssl, #if defined(MBEDTLS_ECDH_C) if( mbedtls_ssl_tls13_named_group_is_ecdhe( group ) ) { - const mbedtls_ecp_curve_info *curve_info = - mbedtls_ecp_curve_info_from_tls_id( group ); - if( curve_info == NULL ) + if( mbedtls_ssl_get_psa_curve_info_from_tls_id( group, NULL, NULL ) + == PSA_ERROR_NOT_SUPPORTED ) { MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid TLS curve group id" ) ); return( MBEDTLS_ERR_SSL_INTERNAL_ERROR ); } - MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) ); + MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", + mbedtls_ssl_get_curve_name_from_tls_id( group ) ) ); ret = mbedtls_ssl_tls13_read_public_ecdhe_share( ssl, p, end - p ); if( ret != 0 )