Implement, plug in and test validate_key driver entry point
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
diff --git a/tests/include/test/drivers/keygen.h b/tests/include/test/drivers/keygen.h
index b72c65c..e5a5e47 100644
--- a/tests/include/test/drivers/keygen.h
+++ b/tests/include/test/drivers/keygen.h
@@ -1,5 +1,5 @@
/*
- * Test driver for generating keys.
+ * Test driver for generating and verifying keys.
*/
/* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
@@ -57,5 +57,10 @@
const psa_key_attributes_t *attributes,
uint8_t *key, size_t key_size, size_t *key_length );
+psa_status_t test_transparent_validate_key(const psa_key_attributes_t *attributes,
+ const uint8_t *data,
+ size_t data_length,
+ size_t *bits);
+
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_TEST_DRIVERS_KEYGEN_H */
diff --git a/tests/src/drivers/keygen.c b/tests/src/drivers/keygen.c
index f15a4bc..84fc98a 100644
--- a/tests/src/drivers/keygen.c
+++ b/tests/src/drivers/keygen.c
@@ -1,6 +1,6 @@
/*
- * Test driver for generating keys.
- * Currently only supports generating ECC keys.
+ * Test driver for generating and verifying keys.
+ * Currently only supports generating and verifying ECC keys.
*/
/* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
@@ -122,4 +122,112 @@
return( PSA_ERROR_NOT_SUPPORTED );
}
+psa_status_t test_transparent_validate_key(const psa_key_attributes_t *attributes,
+ const uint8_t *data,
+ size_t data_length,
+ size_t *bits)
+{
+ ++test_driver_keygen_hooks.hits;
+
+ if( test_driver_keygen_hooks.forced_status != PSA_SUCCESS )
+ return( test_driver_keygen_hooks.forced_status );
+
+#if defined(MBEDTLS_ECP_C)
+ psa_key_type_t type = psa_get_key_type( attributes );
+ if ( PSA_KEY_TYPE_IS_ECC( type ) )
+ {
+ // Code mostly copied from psa_load_ecp_representation
+ psa_ecc_family_t curve = PSA_KEY_TYPE_ECC_GET_FAMILY( type );
+ mbedtls_ecp_group_id grp_id;
+ mbedtls_ecp_keypair ecp;
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+ if( *bits == 0 )
+ {
+ // Attempt auto-detect of curve bit size
+ size_t curve_size = data_length;
+
+ if( PSA_KEY_TYPE_IS_PUBLIC_KEY( type ) &&
+ PSA_KEY_TYPE_ECC_GET_FAMILY( type ) != PSA_ECC_FAMILY_MONTGOMERY )
+ {
+ /* A Weierstrass public key is represented as:
+ * - The byte 0x04;
+ * - `x_P` as a `ceiling(m/8)`-byte string, big-endian;
+ * - `y_P` as a `ceiling(m/8)`-byte string, big-endian.
+ * So its data length is 2m+1 where n is the key size in bits.
+ */
+ if( ( data_length & 1 ) == 0 )
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ curve_size = data_length / 2;
+
+ /* Montgomery public keys are represented in compressed format, meaning
+ * their curve_size is equal to the amount of input. */
+
+ /* Private keys are represented in uncompressed private random integer
+ * format, meaning their curve_size is equal to the amount of input. */
+ }
+
+ grp_id = mbedtls_ecc_group_of_psa( curve, curve_size );
+ }
+ else
+ {
+ grp_id = mbedtls_ecc_group_of_psa( curve,
+ PSA_BITS_TO_BYTES( psa_get_key_bits( attributes ) ) );
+ }
+
+ const mbedtls_ecp_curve_info *curve_info =
+ mbedtls_ecp_curve_info_from_grp_id( grp_id );
+
+ if( attributes->domain_parameters_size != 0 )
+ return( PSA_ERROR_NOT_SUPPORTED );
+ if( grp_id == MBEDTLS_ECP_DP_NONE || curve_info == NULL )
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ *bits = curve_info->bit_size;
+
+ mbedtls_ecp_keypair_init( &ecp );
+
+ status = mbedtls_to_psa_error(
+ mbedtls_ecp_group_load( &ecp.grp, grp_id ) );
+ if( status != PSA_SUCCESS )
+ goto ecp_exit;
+
+ /* Load the key material. */
+ if( PSA_KEY_TYPE_IS_PUBLIC_KEY( type ) )
+ {
+ /* Load the public value. */
+ status = mbedtls_to_psa_error(
+ mbedtls_ecp_point_read_binary( &ecp.grp, &ecp.Q,
+ data,
+ data_length ) );
+ if( status != PSA_SUCCESS )
+ goto ecp_exit;
+
+ /* Check that the point is on the curve. */
+ status = mbedtls_to_psa_error(
+ mbedtls_ecp_check_pubkey( &ecp.grp, &ecp.Q ) );
+ }
+ else
+ {
+ /* Load and validate the secret value. */
+ status = mbedtls_to_psa_error(
+ mbedtls_ecp_read_key( ecp.grp.id,
+ &ecp,
+ data,
+ data_length ) );
+ }
+
+ecp_exit:
+ mbedtls_ecp_keypair_free( &ecp );
+ return( status );
+ }
+ return( PSA_ERROR_NOT_SUPPORTED );
+#else
+ (void) data;
+ (void) data_length;
+ (void) bits;
+ return( PSA_ERROR_NOT_SUPPORTED );
+#endif /* MBEDTLS_ECP_C */
+}
+
#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS && PSA_CRYPTO_DRIVER_TEST */
diff --git a/tests/suites/test_suite_psa_crypto_driver_wrappers.data b/tests/suites/test_suite_psa_crypto_driver_wrappers.data
index 7abc256..1f1ee39 100644
--- a/tests/suites/test_suite_psa_crypto_driver_wrappers.data
+++ b/tests/suites/test_suite_psa_crypto_driver_wrappers.data
@@ -40,6 +40,25 @@
generate_key through transparent driver: error
generate_key:PSA_ERROR_GENERIC_ERROR:"":PSA_ERROR_GENERIC_ERROR
+validate key through transparent driver: good private key
+depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_PK_WRITE_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+validate_key:PSA_SUCCESS:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"49c9a8c18c4b885638c431cf1df1c994131609b580d4fd43a0cab17db2f13eee":PSA_SUCCESS
+
+validate key through transparent driver: good public key
+depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_PK_WRITE_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+validate_key:PSA_SUCCESS:PSA_KEY_TYPE_ECC_PUBLIC_KEY(PSA_ECC_FAMILY_SECP_R1):"04dea5e45d0ea37fc566232a508f4ad20ea13d47e4bf5fa4d54a57a0ba012042087097496efc583fed8b24a5b9be9a51de063f5a00a8b698a16fd7f29b5485f320":PSA_SUCCESS
+
+validate key through transparent driver: fallback private key
+depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_PK_WRITE_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+validate_key:PSA_ERROR_NOT_SUPPORTED:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"49c9a8c18c4b885638c431cf1df1c994131609b580d4fd43a0cab17db2f13eee":PSA_SUCCESS
+
+validate key through transparent driver: fallback public key
+depends_on:MBEDTLS_PK_PARSE_C:MBEDTLS_PK_WRITE_C:MBEDTLS_ECP_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+validate_key:PSA_ERROR_NOT_SUPPORTED:PSA_KEY_TYPE_ECC_PUBLIC_KEY(PSA_ECC_FAMILY_SECP_R1):"04dea5e45d0ea37fc566232a508f4ad20ea13d47e4bf5fa4d54a57a0ba012042087097496efc583fed8b24a5b9be9a51de063f5a00a8b698a16fd7f29b5485f320":PSA_SUCCESS
+
+validate key through transparent driver: error
+validate_key:PSA_ERROR_GENERIC_ERROR:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):"49c9a8c18c4b885638c431cf1df1c994131609b580d4fd43a0cab17db2f13eee":PSA_ERROR_GENERIC_ERROR
+
PSA symmetric encrypt: AES-CTR, 16 bytes, good
depends_on:MBEDTLS_AES_C:MBEDTLS_CIPHER_MODE_CTR
cipher_encrypt:PSA_ALG_CTR:PSA_KEY_TYPE_AES:"2b7e151628aed2a6abf7158809cf4f3c":"2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a":"6bc1bee22e409f96e93d7e117393172a":"8f9408fe80a81d3e813da3c7b0b2bd32":0:PSA_SUCCESS:PSA_SUCCESS
diff --git a/tests/suites/test_suite_psa_crypto_driver_wrappers.function b/tests/suites/test_suite_psa_crypto_driver_wrappers.function
index 951670d..3cecbfc 100644
--- a/tests/suites/test_suite_psa_crypto_driver_wrappers.function
+++ b/tests/suites/test_suite_psa_crypto_driver_wrappers.function
@@ -184,6 +184,40 @@
}
/* END_CASE */
+/* BEGIN_CASE depends_on:MBEDTLS_ECDSA_C:MBEDTLS_ECP_DP_SECP256R1_ENABLED */
+void validate_key( int force_status_arg,
+ int key_type_arg,
+ data_t *key_input,
+ int expected_status_arg )
+{
+ psa_status_t force_status = force_status_arg;
+ psa_status_t expected_status = expected_status_arg;
+ psa_key_type_t key_type = key_type_arg;
+ psa_key_handle_t handle = 0;
+ psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+ psa_status_t actual_status;
+ test_driver_keygen_hooks = test_driver_keygen_hooks_init();
+
+ psa_set_key_type( &attributes,
+ key_type );
+ psa_set_key_bits( &attributes, 0 );
+ psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
+
+ test_driver_keygen_hooks.forced_status = force_status;
+
+ PSA_ASSERT( psa_crypto_init( ) );
+
+ actual_status = psa_import_key( &attributes, key_input->x, key_input->len, &handle );
+ TEST_EQUAL( test_driver_keygen_hooks.hits, 1 );
+ TEST_EQUAL( actual_status, expected_status );
+exit:
+ psa_reset_key_attributes( &attributes );
+ psa_destroy_key( handle );
+ PSA_DONE( );
+ test_driver_keygen_hooks = test_driver_keygen_hooks_init();
+}
+/* END_CASE */
+
/* BEGIN_CASE */
void cipher_encrypt( int alg_arg, int key_type_arg,
data_t *key, data_t *iv,