| /* |
| * 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 |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| * not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <test/helpers.h> |
| |
| #if defined(MBEDTLS_PSA_CRYPTO_DRIVERS) && defined(PSA_CRYPTO_DRIVER_TEST) |
| #include "psa/crypto.h" |
| #include "psa_crypto_core.h" |
| #include "psa_crypto_ecp.h" |
| #include "psa_crypto_rsa.h" |
| #include "mbedtls/ecp.h" |
| #include "mbedtls/error.h" |
| |
| #include "test/drivers/key_management.h" |
| #include "test/drivers/test_driver.h" |
| |
| #include "test/random.h" |
| |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) |
| #include "libtestdriver1/library/psa_crypto_ecp.h" |
| #include "libtestdriver1/library/psa_crypto_rsa.h" |
| #endif |
| |
| #include <string.h> |
| |
| mbedtls_test_driver_key_management_hooks_t |
| mbedtls_test_driver_key_management_hooks = MBEDTLS_TEST_DRIVER_KEY_MANAGEMENT_INIT; |
| |
| const uint8_t mbedtls_test_driver_aes_key[16] = |
| { 0x36, 0x77, 0x39, 0x7A, 0x24, 0x43, 0x26, 0x46, |
| 0x29, 0x4A, 0x40, 0x4E, 0x63, 0x52, 0x66, 0x55 }; |
| const uint8_t mbedtls_test_driver_ecdsa_key[32] = |
| { 0xdc, 0x7d, 0x9d, 0x26, 0xd6, 0x7a, 0x4f, 0x63, |
| 0x2c, 0x34, 0xc2, 0xdc, 0x0b, 0x69, 0x86, 0x18, |
| 0x38, 0x82, 0xc2, 0x06, 0xdf, 0x04, 0xcd, 0xb7, |
| 0xd6, 0x9a, 0xab, 0xe2, 0x8b, 0xe4, 0xf8, 0x1a }; |
| const uint8_t mbedtls_test_driver_ecdsa_pubkey[65] = |
| { 0x04, |
| 0x85, 0xf6, 0x4d, 0x89, 0xf0, 0x0b, 0xe6, 0x6c, |
| 0x88, 0xdd, 0x93, 0x7e, 0xfd, 0x6d, 0x7c, 0x44, |
| 0x56, 0x48, 0xdc, 0xb7, 0x01, 0x15, 0x0b, 0x8a, |
| 0x95, 0x09, 0x29, 0x58, 0x50, 0xf4, 0x1c, 0x19, |
| 0x31, 0xe5, 0x71, 0xfb, 0x8f, 0x8c, 0x78, 0x31, |
| 0x7a, 0x20, 0xb3, 0x80, 0xe8, 0x66, 0x58, 0x4b, |
| 0xbc, 0x25, 0x16, 0xc3, 0xd2, 0x70, 0x2d, 0x79, |
| 0x2f, 0x13, 0x1a, 0x92, 0x20, 0x95, 0xfd, 0x6c }; |
| |
| psa_status_t mbedtls_test_transparent_init( void ) |
| { |
| psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; |
| |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) |
| status = libtestdriver1_psa_crypto_init( ); |
| if( status != PSA_SUCCESS ) |
| return( status ); |
| #endif |
| |
| (void)status; |
| return( PSA_SUCCESS ); |
| } |
| |
| void mbedtls_test_transparent_free( void ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) |
| libtestdriver1_mbedtls_psa_crypto_free( ); |
| #endif |
| |
| return; |
| } |
| |
| psa_status_t mbedtls_test_opaque_init( void ) |
| { |
| return( PSA_SUCCESS ); |
| } |
| |
| void mbedtls_test_opaque_free( void ) |
| { |
| return; |
| } |
| |
| /* |
| * This macro returns the base size for the key context when SE does not |
| * support storage. It is the size of the metadata that gets added to the |
| * wrapped key. In its test functionality the metadata is just some padded |
| * prefixing to the key. |
| */ |
| #define TEST_DRIVER_KEY_CONTEXT_BASE_SIZE \ |
| PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX_SIZE |
| |
| |
| size_t mbedtls_test_opaque_size_function( |
| const psa_key_type_t key_type, |
| const size_t key_bits ) |
| { |
| size_t key_buffer_size = 0; |
| |
| key_buffer_size = PSA_EXPORT_KEY_OUTPUT_SIZE( key_type, key_bits ); |
| if( key_buffer_size == 0 ) |
| return( 0 ); |
| /* Include spacing for base size overhead over the key size |
| * */ |
| key_buffer_size += TEST_DRIVER_KEY_CONTEXT_BASE_SIZE; |
| return( key_buffer_size ); |
| } |
| |
| static size_t mbedtls_test_opaque_get_base_size() |
| { |
| return TEST_DRIVER_KEY_CONTEXT_BASE_SIZE; |
| } |
| |
| /* |
| * The wrap function mbedtls_test_opaque_wrap_key pads and wraps the |
| * clear key. It expects the clear and wrap buffers to be passed in. |
| * key_length is the size of the clear key to be wrapped. |
| * wrapped_key_buffer_size is the size of the output buffer wrap_key. |
| * The argument wrapped_key_buffer_length is filled with the wrapped |
| * key_size on success. |
| * */ |
| static psa_status_t mbedtls_test_opaque_wrap_key( |
| const uint8_t *key, |
| size_t key_length, |
| uint8_t *wrapped_key_buffer, |
| size_t wrapped_key_buffer_size, |
| size_t *wrapped_key_buffer_length ) |
| { |
| size_t opaque_key_base_size = mbedtls_test_opaque_get_base_size(); |
| uint64_t prefix = PSA_CRYPTO_TEST_DRIVER_OPAQUE_PAD_PREFIX; |
| |
| if( key_length + opaque_key_base_size > wrapped_key_buffer_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| /* Write in the opaque pad prefix */ |
| memcpy( wrapped_key_buffer, &prefix, opaque_key_base_size ); |
| wrapped_key_buffer += opaque_key_base_size; |
| *wrapped_key_buffer_length = key_length + opaque_key_base_size; |
| |
| while( key_length-- ) |
| wrapped_key_buffer[key_length] = key[key_length] ^ 0xFF; |
| return( PSA_SUCCESS ); |
| } |
| |
| /* |
| * The unwrap function mbedtls_test_opaque_unwrap_key removes a pad prefix |
| * and unwraps the wrapped key. It expects the clear and wrap buffers to be |
| * passed in. |
| * wrapped_key_length is the size of the wrapped key, |
| * key_buffer_size is the size of the output buffer clear_key. |
| * The argument key_buffer_length is filled with the unwrapped(clear) |
| * key_size on success. |
| * */ |
| static psa_status_t mbedtls_test_opaque_unwrap_key( |
| const uint8_t *wrapped_key, |
| size_t wrapped_key_length, |
| uint8_t *key_buffer, |
| size_t key_buffer_size, |
| size_t *key_buffer_length) |
| { |
| /* Remove the pad prefix from the wrapped key */ |
| size_t opaque_key_base_size = mbedtls_test_opaque_get_base_size(); |
| size_t clear_key_size; |
| |
| /* Check for underflow */ |
| if( wrapped_key_length < opaque_key_base_size ) |
| return( PSA_ERROR_DATA_CORRUPT ); |
| clear_key_size = wrapped_key_length - opaque_key_base_size; |
| |
| wrapped_key += opaque_key_base_size; |
| if( clear_key_size > key_buffer_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| *key_buffer_length = clear_key_size; |
| while( clear_key_size-- ) |
| key_buffer[clear_key_size] = wrapped_key[clear_key_size] ^ 0xFF; |
| return( PSA_SUCCESS ); |
| } |
| |
| psa_status_t mbedtls_test_transparent_generate_key( |
| const psa_key_attributes_t *attributes, |
| uint8_t *key, size_t key_size, size_t *key_length ) |
| { |
| ++mbedtls_test_driver_key_management_hooks.hits; |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_status != PSA_SUCCESS ) |
| return( mbedtls_test_driver_key_management_hooks.forced_status ); |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_output != NULL ) |
| { |
| if( mbedtls_test_driver_key_management_hooks.forced_output_length > |
| key_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| memcpy( key, mbedtls_test_driver_key_management_hooks.forced_output, |
| mbedtls_test_driver_key_management_hooks.forced_output_length ); |
| *key_length = mbedtls_test_driver_key_management_hooks.forced_output_length; |
| return( PSA_SUCCESS ); |
| } |
| |
| if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type( attributes ) ) |
| && PSA_KEY_TYPE_IS_KEY_PAIR( psa_get_key_type( attributes ) ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) |
| return( libtestdriver1_mbedtls_psa_ecp_generate_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key, key_size, key_length ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) |
| return( mbedtls_psa_ecp_generate_key( |
| attributes, key, key_size, key_length ) ); |
| #endif |
| } |
| else if( psa_get_key_type( attributes ) == PSA_KEY_TYPE_RSA_KEY_PAIR ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) |
| return( libtestdriver1_mbedtls_psa_rsa_generate_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key, key_size, key_length ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) |
| return( mbedtls_psa_rsa_generate_key( |
| attributes, key, key_size, key_length ) ); |
| #endif |
| } |
| |
| (void)attributes; |
| return( PSA_ERROR_NOT_SUPPORTED ); |
| } |
| |
| psa_status_t mbedtls_test_opaque_generate_key( |
| const psa_key_attributes_t *attributes, |
| uint8_t *key, size_t key_size, size_t *key_length ) |
| { |
| (void) attributes; |
| (void) key; |
| (void) key_size; |
| (void) key_length; |
| return( PSA_ERROR_NOT_SUPPORTED ); |
| } |
| |
| psa_status_t mbedtls_test_transparent_import_key( |
| const psa_key_attributes_t *attributes, |
| const uint8_t *data, |
| size_t data_length, |
| uint8_t *key_buffer, |
| size_t key_buffer_size, |
| size_t *key_buffer_length, |
| size_t *bits) |
| { |
| psa_key_type_t type = psa_get_key_type( attributes ); |
| |
| ++mbedtls_test_driver_key_management_hooks.hits; |
| mbedtls_test_driver_key_management_hooks.location = PSA_KEY_LOCATION_LOCAL_STORAGE; |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_status != PSA_SUCCESS ) |
| return( mbedtls_test_driver_key_management_hooks.forced_status ); |
| |
| if( PSA_KEY_TYPE_IS_ECC( type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ) |
| return( libtestdriver1_mbedtls_psa_ecp_import_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| data, data_length, |
| key_buffer, key_buffer_size, |
| key_buffer_length, bits ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) |
| return( mbedtls_psa_ecp_import_key( |
| attributes, |
| data, data_length, |
| key_buffer, key_buffer_size, |
| key_buffer_length, bits ) ); |
| #endif |
| } |
| else if( PSA_KEY_TYPE_IS_RSA( type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) ) |
| return( libtestdriver1_mbedtls_psa_rsa_import_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| data, data_length, |
| key_buffer, key_buffer_size, |
| key_buffer_length, bits ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) |
| return( mbedtls_psa_rsa_import_key( |
| attributes, |
| data, data_length, |
| key_buffer, key_buffer_size, |
| key_buffer_length, bits ) ); |
| #endif |
| } |
| |
| (void)data; |
| (void)data_length; |
| (void)key_buffer; |
| (void)key_buffer_size; |
| (void)key_buffer_length; |
| (void)bits; |
| (void)type; |
| |
| return( PSA_ERROR_NOT_SUPPORTED ); |
| } |
| |
| |
| psa_status_t mbedtls_test_opaque_import_key( |
| const psa_key_attributes_t *attributes, |
| const uint8_t *data, |
| size_t data_length, |
| uint8_t *key_buffer, |
| size_t key_buffer_size, |
| size_t *key_buffer_length, |
| size_t *bits) |
| { |
| psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; |
| psa_key_type_t type = psa_get_key_type( attributes ); |
| /* This buffer will be used as an intermediate placeholder for |
| * the clear key till we wrap it */ |
| uint8_t *key_buffer_temp; |
| |
| ++mbedtls_test_driver_key_management_hooks.hits; |
| mbedtls_test_driver_key_management_hooks.location = PSA_CRYPTO_TEST_DRIVER_LOCATION; |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_status != PSA_SUCCESS ) |
| return( mbedtls_test_driver_key_management_hooks.forced_status ); |
| |
| key_buffer_temp = mbedtls_calloc( 1, key_buffer_size ); |
| if( key_buffer_temp == NULL ) |
| return( PSA_ERROR_INSUFFICIENT_MEMORY ); |
| |
| if( PSA_KEY_TYPE_IS_UNSTRUCTURED( type ) ) |
| { |
| *bits = PSA_BYTES_TO_BITS( data_length ); |
| |
| status = psa_validate_unstructured_key_bit_size( type, |
| *bits ); |
| if( status != PSA_SUCCESS ) |
| goto exit; |
| |
| if( data_length > key_buffer_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| /* Copy the key material accounting for opaque key padding. */ |
| memcpy( key_buffer_temp, data, data_length ); |
| *key_buffer_length = data_length; |
| } |
| else if( PSA_KEY_TYPE_IS_ECC( type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) ) |
| status = libtestdriver1_mbedtls_psa_ecp_import_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| data, data_length, |
| key_buffer_temp, key_buffer_size, |
| key_buffer_length, bits ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) |
| status = mbedtls_psa_ecp_import_key( |
| attributes, |
| data, data_length, |
| key_buffer_temp, key_buffer_size, |
| key_buffer_length, bits ); |
| #else |
| status = PSA_ERROR_NOT_SUPPORTED; |
| #endif |
| if( status != PSA_SUCCESS ) |
| goto exit; |
| } |
| else if( PSA_KEY_TYPE_IS_RSA( type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) ) |
| status = libtestdriver1_mbedtls_psa_rsa_import_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| data, data_length, |
| key_buffer_temp, key_buffer_size, |
| key_buffer_length, bits ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) |
| status = mbedtls_psa_rsa_import_key( |
| attributes, |
| data, data_length, |
| key_buffer_temp, key_buffer_size, |
| key_buffer_length, bits ); |
| #else |
| status = PSA_ERROR_NOT_SUPPORTED; |
| #endif |
| if( status != PSA_SUCCESS ) |
| goto exit; |
| } |
| else |
| { |
| status = PSA_ERROR_INVALID_ARGUMENT; |
| goto exit; |
| } |
| |
| status = mbedtls_test_opaque_wrap_key( key_buffer_temp, *key_buffer_length, |
| key_buffer, key_buffer_size, key_buffer_length ); |
| exit: |
| mbedtls_free( key_buffer_temp ); |
| return( status ); |
| } |
| |
| psa_status_t mbedtls_test_opaque_export_key( |
| const psa_key_attributes_t *attributes, |
| const uint8_t *key, size_t key_length, |
| uint8_t *data, size_t data_size, size_t *data_length ) |
| { |
| if( key_length == sizeof( psa_drv_slot_number_t ) ) |
| { |
| /* Assume this is a builtin key based on the key material length. */ |
| psa_drv_slot_number_t slot_number = *( ( psa_drv_slot_number_t* ) key ); |
| |
| switch( slot_number ) |
| { |
| case PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT: |
| /* This is the ECDSA slot. Verify the key's attributes before |
| * returning the private key. */ |
| if( psa_get_key_type( attributes ) != |
| PSA_KEY_TYPE_ECC_KEY_PAIR( PSA_ECC_FAMILY_SECP_R1 ) ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_bits( attributes ) != 256 ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_algorithm( attributes ) != |
| PSA_ALG_ECDSA( PSA_ALG_ANY_HASH ) ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( ( psa_get_key_usage_flags( attributes ) & |
| PSA_KEY_USAGE_EXPORT ) == 0 ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| |
| if( data_size < sizeof( mbedtls_test_driver_ecdsa_key ) ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| memcpy( data, mbedtls_test_driver_ecdsa_key, |
| sizeof( mbedtls_test_driver_ecdsa_key ) ); |
| *data_length = sizeof( mbedtls_test_driver_ecdsa_key ); |
| return( PSA_SUCCESS ); |
| |
| case PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT: |
| /* This is the AES slot. Verify the key's attributes before |
| * returning the key. */ |
| if( psa_get_key_type( attributes ) != PSA_KEY_TYPE_AES ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_bits( attributes ) != 128 ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_algorithm( attributes ) != PSA_ALG_CTR ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( ( psa_get_key_usage_flags( attributes ) & |
| PSA_KEY_USAGE_EXPORT ) == 0 ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| |
| if( data_size < sizeof( mbedtls_test_driver_aes_key ) ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| memcpy( data, mbedtls_test_driver_aes_key, |
| sizeof( mbedtls_test_driver_aes_key ) ); |
| *data_length = sizeof( mbedtls_test_driver_aes_key ); |
| return( PSA_SUCCESS ); |
| |
| default: |
| return( PSA_ERROR_DOES_NOT_EXIST ); |
| } |
| } |
| else |
| { |
| /* This buffer will be used as an intermediate placeholder for |
| * the opaque key till we unwrap the key into key_buffer */ |
| psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; |
| psa_key_type_t type = psa_get_key_type( attributes ); |
| |
| if( PSA_KEY_TYPE_IS_UNSTRUCTURED( type ) || |
| PSA_KEY_TYPE_IS_RSA( type ) || |
| PSA_KEY_TYPE_IS_ECC( type ) ) |
| { |
| status = mbedtls_test_opaque_unwrap_key( key, key_length, |
| data, data_size, data_length ); |
| return( status ); |
| } |
| } |
| return( PSA_ERROR_NOT_SUPPORTED ); |
| } |
| |
| psa_status_t mbedtls_test_transparent_export_public_key( |
| const psa_key_attributes_t *attributes, |
| const uint8_t *key_buffer, size_t key_buffer_size, |
| uint8_t *data, size_t data_size, size_t *data_length ) |
| { |
| ++mbedtls_test_driver_key_management_hooks.hits; |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_status != PSA_SUCCESS ) |
| return( mbedtls_test_driver_key_management_hooks.forced_status ); |
| |
| if( mbedtls_test_driver_key_management_hooks.forced_output != NULL ) |
| { |
| if( mbedtls_test_driver_key_management_hooks.forced_output_length > |
| data_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| memcpy( data, mbedtls_test_driver_key_management_hooks.forced_output, |
| mbedtls_test_driver_key_management_hooks.forced_output_length ); |
| *data_length = mbedtls_test_driver_key_management_hooks.forced_output_length; |
| return( PSA_SUCCESS ); |
| } |
| |
| psa_key_type_t key_type = psa_get_key_type( attributes ); |
| |
| if( PSA_KEY_TYPE_IS_ECC( key_type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ) |
| return( libtestdriver1_mbedtls_psa_ecp_export_public_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key_buffer, key_buffer_size, |
| data, data_size, data_length ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) |
| return( mbedtls_psa_ecp_export_public_key( |
| attributes, |
| key_buffer, key_buffer_size, |
| data, data_size, data_length ) ); |
| #endif |
| } |
| else if( PSA_KEY_TYPE_IS_RSA( key_type ) ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) ) |
| return( libtestdriver1_mbedtls_psa_rsa_export_public_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key_buffer, key_buffer_size, |
| data, data_size, data_length ) ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) |
| return( mbedtls_psa_rsa_export_public_key( |
| attributes, |
| key_buffer, key_buffer_size, |
| data, data_size, data_length ) ); |
| #endif |
| } |
| |
| (void)key_buffer; |
| (void)key_buffer_size; |
| (void)key_type; |
| |
| return( PSA_ERROR_NOT_SUPPORTED ); |
| } |
| |
| psa_status_t mbedtls_test_opaque_export_public_key( |
| const psa_key_attributes_t *attributes, |
| const uint8_t *key, size_t key_length, |
| uint8_t *data, size_t data_size, size_t *data_length ) |
| { |
| if( key_length != sizeof( psa_drv_slot_number_t ) ) |
| { |
| psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED; |
| psa_key_type_t key_type = psa_get_key_type( attributes ); |
| uint8_t *key_buffer_temp; |
| |
| key_buffer_temp = mbedtls_calloc( 1, key_length ); |
| if( key_buffer_temp == NULL ) |
| return( PSA_ERROR_INSUFFICIENT_MEMORY ); |
| |
| if( PSA_KEY_TYPE_IS_ECC( key_type ) ) |
| { |
| status = mbedtls_test_opaque_unwrap_key( key, key_length, |
| key_buffer_temp, key_length, data_length ); |
| if( status == PSA_SUCCESS ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_ECC_PUBLIC_KEY) ) |
| status = libtestdriver1_mbedtls_psa_ecp_export_public_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key_buffer_temp, *data_length, |
| data, data_size, data_length ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) |
| status = mbedtls_psa_ecp_export_public_key( |
| attributes, |
| key_buffer_temp, *data_length, |
| data, data_size, data_length ); |
| #else |
| status = PSA_ERROR_NOT_SUPPORTED; |
| #endif |
| } |
| } |
| else if( PSA_KEY_TYPE_IS_RSA( key_type ) ) |
| { |
| status = mbedtls_test_opaque_unwrap_key( key, key_length, |
| key_buffer_temp, key_length, data_length ); |
| if( status == PSA_SUCCESS ) |
| { |
| #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \ |
| ( defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_PUBLIC_KEY) ) |
| status = libtestdriver1_mbedtls_psa_rsa_export_public_key( |
| (const libtestdriver1_psa_key_attributes_t *)attributes, |
| key_buffer_temp, *data_length, |
| data, data_size, data_length ); |
| #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR) || \ |
| defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) |
| status = mbedtls_psa_rsa_export_public_key( |
| attributes, |
| key_buffer_temp, *data_length, |
| data, data_size, data_length ); |
| #else |
| status = PSA_ERROR_NOT_SUPPORTED; |
| #endif |
| } |
| } |
| else |
| { |
| status = PSA_ERROR_NOT_SUPPORTED; |
| (void)key; |
| (void)key_type; |
| } |
| mbedtls_free( key_buffer_temp ); |
| return( status ); |
| } |
| |
| /* Assume this is a builtin key based on the key material length. */ |
| psa_drv_slot_number_t slot_number = *( ( psa_drv_slot_number_t* ) key ); |
| switch( slot_number ) |
| { |
| case PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT: |
| /* This is the ECDSA slot. Verify the key's attributes before |
| * returning the public key. */ |
| if( psa_get_key_type( attributes ) != |
| PSA_KEY_TYPE_ECC_KEY_PAIR( PSA_ECC_FAMILY_SECP_R1 ) ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_bits( attributes ) != 256 ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| if( psa_get_key_algorithm( attributes ) != |
| PSA_ALG_ECDSA( PSA_ALG_ANY_HASH ) ) |
| return( PSA_ERROR_CORRUPTION_DETECTED ); |
| |
| if( data_size < sizeof( mbedtls_test_driver_ecdsa_pubkey ) ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| memcpy( data, mbedtls_test_driver_ecdsa_pubkey, |
| sizeof( mbedtls_test_driver_ecdsa_pubkey ) ); |
| *data_length = sizeof( mbedtls_test_driver_ecdsa_pubkey ); |
| return( PSA_SUCCESS ); |
| |
| default: |
| return( PSA_ERROR_DOES_NOT_EXIST ); |
| } |
| } |
| |
| /* The opaque test driver exposes two built-in keys when builtin key support is |
| * compiled in. |
| * The key in slot #PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT is an AES-128 |
| * key which allows CTR mode. |
| * The key in slot #PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT is a secp256r1 |
| * private key which allows ECDSA sign & verify. |
| * The key buffer format for these is the raw format of psa_drv_slot_number_t |
| * (i.e. for an actual driver this would mean 'builtin_key_size' = |
| * sizeof(psa_drv_slot_number_t)). |
| */ |
| psa_status_t mbedtls_test_opaque_get_builtin_key( |
| psa_drv_slot_number_t slot_number, |
| psa_key_attributes_t *attributes, |
| uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length ) |
| { |
| switch( slot_number ) |
| { |
| case PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT: |
| psa_set_key_type( attributes, PSA_KEY_TYPE_AES ); |
| psa_set_key_bits( attributes, 128 ); |
| psa_set_key_usage_flags( |
| attributes, |
| PSA_KEY_USAGE_ENCRYPT | |
| PSA_KEY_USAGE_DECRYPT | |
| PSA_KEY_USAGE_EXPORT ); |
| psa_set_key_algorithm( attributes, PSA_ALG_CTR ); |
| |
| if( key_buffer_size < sizeof( psa_drv_slot_number_t ) ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| *( (psa_drv_slot_number_t*) key_buffer ) = |
| PSA_CRYPTO_TEST_DRIVER_BUILTIN_AES_KEY_SLOT; |
| *key_buffer_length = sizeof( psa_drv_slot_number_t ); |
| return( PSA_SUCCESS ); |
| case PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT: |
| psa_set_key_type( |
| attributes, |
| PSA_KEY_TYPE_ECC_KEY_PAIR( PSA_ECC_FAMILY_SECP_R1 ) ); |
| psa_set_key_bits( attributes, 256 ); |
| psa_set_key_usage_flags( |
| attributes, |
| PSA_KEY_USAGE_SIGN_HASH | |
| PSA_KEY_USAGE_VERIFY_HASH | |
| PSA_KEY_USAGE_EXPORT ); |
| psa_set_key_algorithm( |
| attributes, PSA_ALG_ECDSA( PSA_ALG_ANY_HASH ) ); |
| |
| if( key_buffer_size < sizeof( psa_drv_slot_number_t ) ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| *( (psa_drv_slot_number_t*) key_buffer ) = |
| PSA_CRYPTO_TEST_DRIVER_BUILTIN_ECDSA_KEY_SLOT; |
| *key_buffer_length = sizeof( psa_drv_slot_number_t ); |
| return( PSA_SUCCESS ); |
| default: |
| return( PSA_ERROR_DOES_NOT_EXIST ); |
| } |
| } |
| |
| psa_status_t mbedtls_test_opaque_copy_key( |
| psa_key_attributes_t *attributes, |
| const uint8_t *source_key, size_t source_key_length, |
| uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length) |
| { |
| /* This is a case where the opaque test driver emulates an SE without storage. |
| * With that all key context is stored in the wrapped buffer. |
| * So no additional house keeping is necessary to reference count the |
| * copied keys. This could change when the opaque test driver is extended |
| * to support SE with storage, or to emulate an SE without storage but |
| * still holding some slot references */ |
| if( source_key_length > key_buffer_size ) |
| return( PSA_ERROR_BUFFER_TOO_SMALL ); |
| |
| memcpy( key_buffer, source_key, source_key_length ); |
| *key_buffer_length = source_key_length; |
| (void)attributes; |
| return( PSA_SUCCESS ); |
| } |
| |
| #endif /* MBEDTLS_PSA_CRYPTO_DRIVERS && PSA_CRYPTO_DRIVER_TEST */ |
