Merge pull request #6863 from valeriosetti/issue6830
Remove uses of mbedtls_ecp_curve_info in TLS (with USE_PSA)
diff --git a/include/mbedtls/psa_util.h b/include/mbedtls/psa_util.h
index f030bea..f2f5400 100644
--- a/include/mbedtls/psa_util.h
+++ b/include/mbedtls/psa_util.h
@@ -264,22 +264,6 @@
#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 92137ba..925d0c2 100644
--- a/library/ssl_client.c
+++ b/library/ssl_client.c
@@ -262,15 +262,17 @@
( 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 1012b3a..d558e38 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -787,7 +787,7 @@
#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 +1576,55 @@
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 );
+
+#if defined(MBEDTLS_DEBUG_C)
+/**
+ * \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 supported, a NULL pointer is returned instead.
+ */
+const char* mbedtls_ssl_get_curve_name_from_tls_id( uint16_t tls_id );
+#endif
+
#if defined(MBEDTLS_SSL_DTLS_SRTP)
static inline mbedtls_ssl_srtp_profile mbedtls_ssl_check_srtp_profile_value
( const uint16_t srtp_profile_value )
@@ -2179,9 +2228,8 @@
#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 d25a439..35565de 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -1076,14 +1076,14 @@
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;
@@ -4065,7 +4065,7 @@
#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)
@@ -5490,18 +5490,126 @@
*/
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 */
+#if defined( MBEDTLS_DEBUG_C )
+#define EC_NAME(_name_) _name_
+#else
+#define EC_NAME(_name_) NULL
+#endif
+
+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, EC_NAME( "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, EC_NAME( "brainpoolP512r1" ) },
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384)
+ { 24, MBEDTLS_ECP_DP_SECP384R1, PSA_ECC_FAMILY_SECP_R1, 384, EC_NAME( "secp384r1" ) },
+#endif
+#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
+ { 27, MBEDTLS_ECP_DP_BP384R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 384, EC_NAME( "brainpoolP384r1" ) },
+#endif
+#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256)
+ { 23, MBEDTLS_ECP_DP_SECP256R1, PSA_ECC_FAMILY_SECP_R1, 256, EC_NAME( "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, EC_NAME( "secp256k1" ) },
+#endif
+#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
+ { 26, MBEDTLS_ECP_DP_BP256R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 256, EC_NAME( "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, EC_NAME( "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, EC_NAME( "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, EC_NAME( "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, EC_NAME( "secp192k1" ) },
+#endif
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255)
+ { 29, MBEDTLS_ECP_DP_CURVE25519, PSA_ECC_FAMILY_MONTGOMERY, 255, EC_NAME( "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, EC_NAME( "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;
+}
+
+#if defined(MBEDTLS_DEBUG_C)
+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;
+}
+#endif
+
#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 76588d3..30b6481 100644
--- a/library/ssl_tls12_client.c
+++ b/library/ssl_tls12_client.c
@@ -1800,9 +1800,10 @@
unsigned char *end )
{
uint16_t tls_id;
- size_t ecdh_bits = 0;
uint8_t ecpoint_len;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
+ psa_ecc_family_t ec_psa_family = 0;
+ size_t ec_bits = 0;
/*
* struct {
@@ -1836,13 +1837,14 @@
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
- /* Convert EC group to PSA key type. */
- if( ( handshake->ecdh_psa_type =
- mbedtls_psa_parse_tls_ecc_group( tls_id, &ecdh_bits ) ) == 0 )
+ /* Convert EC's TLS ID to PSA key type. */
+ if( mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id, &ec_psa_family,
+ &ec_bits ) == PSA_ERROR_NOT_SUPPORTED )
{
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
- handshake->ecdh_bits = ecdh_bits;
+ handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ec_psa_family );
+ handshake->ecdh_bits = ec_bits;
/* Keep a copy of the peer's public key */
ecpoint_len = *(*p)++;
@@ -1870,7 +1872,7 @@
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 +1880,15 @@
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 );
@@ -2104,8 +2107,9 @@
peer_key = mbedtls_pk_ec( *peer_pk );
#if defined(MBEDTLS_USE_PSA_CRYPTO)
- size_t ecdh_bits = 0;
size_t olen = 0;
+ uint16_t tls_id = 0;
+ psa_ecc_family_t ecc_family;
if( mbedtls_ssl_check_curve( ssl, peer_key->grp.id ) != 0 )
{
@@ -2113,17 +2117,20 @@
return( MBEDTLS_ERR_SSL_BAD_CERTIFICATE );
}
- ssl->handshake->ecdh_psa_type =
- PSA_KEY_TYPE_ECC_KEY_PAIR( mbedtls_ecc_group_to_psa( peer_key->grp.id,
- &ecdh_bits ) );
-
- if( ssl->handshake->ecdh_psa_type == 0 || ecdh_bits > 0xffff )
+ tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( peer_key->grp.id );
+ if( tls_id == 0 )
{
- MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid ecc group conversion to psa." ) );
+ MBEDTLS_SSL_DEBUG_MSG( 1, ( "ECC group %u not suported",
+ peer_key->grp.id ) );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
- ssl->handshake->ecdh_bits = (uint16_t) ecdh_bits;
+ /* If the above conversion to TLS ID was fine, then also this one will be,
+ so there is no need to check the return value here */
+ mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id, &ecc_family,
+ &ssl->handshake->ecdh_bits );
+
+ ssl->handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ecc_family );
/* Store peer's public key in psa format. */
ret = mbedtls_ecp_point_write_binary( &peer_key->grp, &peer_key->Q,
@@ -2346,16 +2353,16 @@
* 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 5cdbcc0..a28cd67 100644
--- a/library/ssl_tls12_server.c
+++ b/library/ssl_tls12_server.c
@@ -180,7 +180,7 @@
{
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 @@
}
/* 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 @@
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 @@
#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 @@
#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 @@
#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" ) );
@@ -2654,7 +2659,8 @@
unsigned char buf[
PSA_KEY_EXPORT_ECC_KEY_PAIR_MAX_SIZE(PSA_VENDOR_ECC_MAX_CURVE_BITS)];
psa_key_attributes_t key_attributes = PSA_KEY_ATTRIBUTES_INIT;
- size_t ecdh_bits = 0;
+ uint16_t tls_id = 0;
+ psa_ecc_family_t ecc_family;
size_t key_len;
mbedtls_pk_context *pk;
mbedtls_ecp_keypair *key;
@@ -2698,15 +2704,19 @@
if( key == NULL )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
- /* Convert EC group to PSA key type. */
- if( ( ssl->handshake->ecdh_psa_type =
- mbedtls_ecc_group_to_psa( key->grp.id,
- &ecdh_bits ) ) == 0 )
+ tls_id = mbedtls_ssl_get_tls_id_from_ecp_group_id( key->grp.id );
+ if( tls_id == 0 )
{
+ /* This elliptic curve is not supported */
return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
}
- ssl->handshake->ecdh_bits = ecdh_bits;
+ /* If the above conversion to TLS ID was fine, then also this one will
+ be, so there is no need to check the return value here */
+ mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id, &ecc_family,
+ &ssl->handshake->ecdh_bits );
+
+ ssl->handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ecc_family );
key_attributes = psa_key_attributes_init();
psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
@@ -2849,7 +2859,6 @@
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 +2868,14 @@
* 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,
@@ -2986,50 +2996,52 @@
* 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;
psa_key_attributes_t key_attributes;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
- size_t ecdh_bits = 0;
uint8_t *p = ssl->out_msg + ssl->out_msglen;
const size_t header_size = 4; // curve_type(1), namedcurve(2),
// data length(1)
const size_t data_length_size = 1;
+ psa_ecc_family_t ec_psa_family = 0;
+ size_t ec_bits = 0;
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
- /* Convert EC group to PSA key type. */
- handshake->ecdh_psa_type = mbedtls_psa_parse_tls_ecc_group(
- (*curve)->tls_id, &ecdh_bits );
-
- if( handshake->ecdh_psa_type == 0 )
+ /* Convert EC's TLS ID to PSA key type. */
+ if( mbedtls_ssl_get_psa_curve_info_from_tls_id( *curr_tls_id,
+ &ec_psa_family, &ec_bits ) == PSA_ERROR_NOT_SUPPORTED )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Invalid ecc group parse." ) );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
- handshake->ecdh_bits = ecdh_bits;
+ handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ec_psa_family );
+ handshake->ecdh_bits = ec_bits;
key_attributes = psa_key_attributes_init();
psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
@@ -3047,7 +3059,7 @@
/*
* 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 +3105,11 @@
/* 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 08d4924..f07c8b6 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -230,9 +230,8 @@
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 @@
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 @@
*/
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 @@
#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 )
diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index 0aecb35..121ff43 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -1516,16 +1516,19 @@
psa_key_attributes_t key_attributes;
size_t own_pubkey_len;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
- size_t ecdh_bits = 0;
+ psa_ecc_family_t ec_psa_family = 0;
+ size_t ec_bits = 0;
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Perform PSA-based ECDH computation." ) );
- /* Convert EC group to PSA key type. */
- if( ( handshake->ecdh_psa_type =
- mbedtls_psa_parse_tls_ecc_group( named_group, &ecdh_bits ) ) == 0 )
- return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
-
- ssl->handshake->ecdh_bits = ecdh_bits;
+ /* Convert EC's TLS ID to PSA key type. */
+ if( mbedtls_ssl_get_psa_curve_info_from_tls_id( named_group,
+ &ec_psa_family, &ec_bits ) == PSA_ERROR_NOT_SUPPORTED )
+ {
+ return( MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE );
+ }
+ handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR( ec_psa_family );
+ ssl->handshake->ecdh_bits = ec_bits;
key_attributes = psa_key_attributes_init();
psa_set_key_usage_flags( &key_attributes, PSA_KEY_USAGE_DERIVE );
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index b538191..ddbfdc3 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -939,6 +939,19 @@
msg "test: context-info.sh (full config, ASan build)" # ~ 15 sec
tests/context-info.sh
+
+ msg "test: check direct ECP dependencies in TLS and X.509"
+ docs/architecture/psa-migration/syms.sh full
+
+ # TODO: replace "mbedtls_ecp_curve" with "mbedtls_ecp" also for
+ # "full-tls-external" once Issue6839 is completed
+ not grep mbedtls_ecp_curve full-tls-external
+ not grep mbedtls_ecp full-x509-external
+
+ rm full-tls-external \
+ full-tls-modules \
+ full-x509-external \
+ full-x509-modules
}
component_test_psa_crypto_key_id_encodes_owner () {
diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index 1b5e44b..3059e7f 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -3547,3 +3547,6 @@
EC-JPAKE set opaque password
depends_on:MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED:MBEDTLS_USE_PSA_CRYPTO
ssl_ecjpake_set_password:1
+
+Test Elliptic curves' info parsing
+elliptic_curve_get_properties
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 274a894..b0b9136 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -2597,6 +2597,25 @@
pwd_string, pwd_len ); \
TEST_EQUAL( ret, exp_ret_val )
#endif
+
+#define TEST_AVAILABLE_ECC( tls_id_, group_id_, psa_family_, psa_bits_ ) \
+ TEST_EQUAL( mbedtls_ssl_get_ecp_group_id_from_tls_id( tls_id_ ), \
+ group_id_ ); \
+ TEST_EQUAL( mbedtls_ssl_get_tls_id_from_ecp_group_id( group_id_ ), \
+ tls_id_ ); \
+ TEST_EQUAL( mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id_, \
+ &psa_family, &psa_bits), PSA_SUCCESS ); \
+ TEST_EQUAL( psa_family_, psa_family ); \
+ TEST_EQUAL( psa_bits_, psa_bits );
+
+#define TEST_UNAVAILABLE_ECC( tls_id_, group_id_, psa_family_, psa_bits_ ) \
+ TEST_EQUAL( mbedtls_ssl_get_ecp_group_id_from_tls_id( tls_id_ ), \
+ MBEDTLS_ECP_DP_NONE ); \
+ TEST_EQUAL( mbedtls_ssl_get_tls_id_from_ecp_group_id( group_id_ ), \
+ 0 ); \
+ TEST_EQUAL( mbedtls_ssl_get_psa_curve_info_from_tls_id( tls_id_, \
+ &psa_family, &psa_bits), PSA_ERROR_NOT_SUPPORTED );
+
/* END_HEADER */
/* BEGIN_DEPENDENCIES
@@ -6094,3 +6113,81 @@
USE_PSA_DONE( );
}
/* END_CASE */
+
+/* BEGIN_CASE */
+void elliptic_curve_get_properties( )
+{
+ psa_ecc_family_t psa_family;
+ size_t psa_bits;
+
+ USE_PSA_INIT( );
+
+#if defined( MBEDTLS_ECP_DP_SECP521R1_ENABLED ) || defined(PSA_WANT_ECC_SECP_R1_521)
+ TEST_AVAILABLE_ECC( 25, MBEDTLS_ECP_DP_SECP521R1, PSA_ECC_FAMILY_SECP_R1, 521 );
+#else
+ TEST_UNAVAILABLE_ECC( 25, MBEDTLS_ECP_DP_SECP521R1, PSA_ECC_FAMILY_SECP_R1, 521 );
+#endif
+#if defined( MBEDTLS_ECP_DP_BP512R1_ENABLED ) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
+ TEST_AVAILABLE_ECC( 28, MBEDTLS_ECP_DP_BP512R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 512 );
+#else
+ TEST_UNAVAILABLE_ECC( 28, MBEDTLS_ECP_DP_BP512R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 512 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP384R1_ENABLED ) || defined(PSA_WANT_ECC_SECP_R1_384)
+ TEST_AVAILABLE_ECC( 24, MBEDTLS_ECP_DP_SECP384R1, PSA_ECC_FAMILY_SECP_R1, 384 );
+#else
+ TEST_UNAVAILABLE_ECC( 24, MBEDTLS_ECP_DP_SECP384R1, PSA_ECC_FAMILY_SECP_R1, 384 );
+#endif
+#if defined( MBEDTLS_ECP_DP_BP384R1_ENABLED ) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
+ TEST_AVAILABLE_ECC( 27, MBEDTLS_ECP_DP_BP384R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 384 );
+#else
+ TEST_UNAVAILABLE_ECC( 27, MBEDTLS_ECP_DP_BP384R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 384 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP256R1_ENABLED ) || defined(PSA_WANT_ECC_SECP_R1_256)
+ TEST_AVAILABLE_ECC( 23, MBEDTLS_ECP_DP_SECP256R1, PSA_ECC_FAMILY_SECP_R1, 256 );
+#else
+ TEST_UNAVAILABLE_ECC( 23, MBEDTLS_ECP_DP_SECP256R1, PSA_ECC_FAMILY_SECP_R1, 256 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP256K1_ENABLED ) || defined(PSA_WANT_ECC_SECP_K1_256)
+ TEST_AVAILABLE_ECC( 22, MBEDTLS_ECP_DP_SECP256K1, PSA_ECC_FAMILY_SECP_K1, 256 );
+#else
+ TEST_UNAVAILABLE_ECC( 22, MBEDTLS_ECP_DP_SECP256K1, PSA_ECC_FAMILY_SECP_K1, 256 );
+#endif
+#if defined( MBEDTLS_ECP_DP_BP256R1_ENABLED ) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
+ TEST_AVAILABLE_ECC( 26, MBEDTLS_ECP_DP_BP256R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 256 );
+#else
+ TEST_UNAVAILABLE_ECC( 26, MBEDTLS_ECP_DP_BP256R1, PSA_ECC_FAMILY_BRAINPOOL_P_R1, 256 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP224R1_ENABLED ) || defined(PSA_WANT_ECC_SECP_R1_224)
+ TEST_AVAILABLE_ECC( 21, MBEDTLS_ECP_DP_SECP224R1, PSA_ECC_FAMILY_SECP_R1, 224 );
+#else
+ TEST_UNAVAILABLE_ECC( 21, MBEDTLS_ECP_DP_SECP224R1, PSA_ECC_FAMILY_SECP_R1, 224 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP224K1_ENABLED ) || defined(PSA_WANT_ECC_SECP_K1_224)
+ TEST_AVAILABLE_ECC( 20, MBEDTLS_ECP_DP_SECP224K1, PSA_ECC_FAMILY_SECP_K1, 224 );
+#else
+ TEST_UNAVAILABLE_ECC( 20, MBEDTLS_ECP_DP_SECP224K1, PSA_ECC_FAMILY_SECP_K1, 224 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP192R1_ENABLED ) || defined(PSA_WANT_ECC_SECP_R1_192)
+ TEST_AVAILABLE_ECC( 19, MBEDTLS_ECP_DP_SECP192R1, PSA_ECC_FAMILY_SECP_R1, 192 );
+#else
+ TEST_UNAVAILABLE_ECC( 19, MBEDTLS_ECP_DP_SECP192R1, PSA_ECC_FAMILY_SECP_R1, 192 );
+#endif
+#if defined( MBEDTLS_ECP_DP_SECP192K1_ENABLED ) || defined(PSA_WANT_ECC_SECP_K1_192)
+ TEST_AVAILABLE_ECC( 18, MBEDTLS_ECP_DP_SECP192K1, PSA_ECC_FAMILY_SECP_K1, 192 );
+#else
+ TEST_UNAVAILABLE_ECC( 18, MBEDTLS_ECP_DP_SECP192K1, PSA_ECC_FAMILY_SECP_K1, 192 );
+#endif
+#if defined( MBEDTLS_ECP_DP_CURVE25519_ENABLED ) || defined(PSA_WANT_ECC_MONTGOMERY_255)
+ TEST_AVAILABLE_ECC( 29, MBEDTLS_ECP_DP_CURVE25519, PSA_ECC_FAMILY_MONTGOMERY, 255 );
+#else
+ TEST_UNAVAILABLE_ECC( 29, MBEDTLS_ECP_DP_CURVE25519, PSA_ECC_FAMILY_MONTGOMERY, 255 );
+#endif
+#if defined( MBEDTLS_ECP_DP_CURVE448_ENABLED ) || defined(PSA_WANT_ECC_MONTGOMERY_448)
+ TEST_AVAILABLE_ECC( 30, MBEDTLS_ECP_DP_CURVE448, PSA_ECC_FAMILY_MONTGOMERY, 448 );
+#else
+ TEST_UNAVAILABLE_ECC( 30, MBEDTLS_ECP_DP_CURVE448, PSA_ECC_FAMILY_MONTGOMERY, 448 );
+#endif
+
+ USE_PSA_DONE( );
+}
+/* END_CASE */