| /* BEGIN_HEADER */ |
| #include "mbedtls/ccm.h" |
| /* END_HEADER */ |
| |
| /* BEGIN_DEPENDENCIES |
| * depends_on:MBEDTLS_CCM_C |
| * END_DEPENDENCIES |
| */ |
| |
| /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST:MBEDTLS_AES_C */ |
| void mbedtls_ccm_self_test( ) |
| { |
| TEST_ASSERT( mbedtls_ccm_self_test( 1 ) == 0 ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void mbedtls_ccm_setkey( int cipher_id, int key_size, int result ) |
| { |
| mbedtls_ccm_context ctx; |
| unsigned char key[32]; |
| int ret; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( key, 0x2A, sizeof( key ) ); |
| TEST_ASSERT( (unsigned) key_size <= 8 * sizeof( key ) ); |
| |
| ret = mbedtls_ccm_setkey( &ctx, cipher_id, key, key_size ); |
| TEST_ASSERT( ret == result ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE depends_on:MBEDTLS_AES_C */ |
| void ccm_lengths( int msg_len, int iv_len, int add_len, int tag_len, int res ) |
| { |
| mbedtls_ccm_context ctx; |
| unsigned char key[16]; |
| unsigned char msg[10]; |
| unsigned char iv[14]; |
| unsigned char *add = NULL; |
| unsigned char out[10]; |
| unsigned char tag[18]; |
| int decrypt_ret; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| ASSERT_ALLOC_WEAK( add, add_len ); |
| memset( key, 0, sizeof( key ) ); |
| memset( msg, 0, sizeof( msg ) ); |
| memset( iv, 0, sizeof( iv ) ); |
| memset( out, 0, sizeof( out ) ); |
| memset( tag, 0, sizeof( tag ) ); |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, |
| key, 8 * sizeof( key ) ) == 0 ); |
| |
| TEST_ASSERT( mbedtls_ccm_encrypt_and_tag( &ctx, msg_len, iv, iv_len, add, add_len, |
| msg, out, tag, tag_len ) == res ); |
| |
| decrypt_ret = mbedtls_ccm_auth_decrypt( &ctx, msg_len, iv, iv_len, add, add_len, |
| msg, out, tag, tag_len ); |
| |
| if( res == 0 ) |
| TEST_ASSERT( decrypt_ret == MBEDTLS_ERR_CCM_AUTH_FAILED ); |
| else |
| TEST_ASSERT( decrypt_ret == res ); |
| |
| exit: |
| mbedtls_free( add ); |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE depends_on:MBEDTLS_AES_C */ |
| void ccm_star_lengths( int msg_len, int iv_len, int add_len, int tag_len, |
| int res ) |
| { |
| mbedtls_ccm_context ctx; |
| unsigned char key[16]; |
| unsigned char msg[10]; |
| unsigned char iv[14]; |
| unsigned char add[10]; |
| unsigned char out[10]; |
| unsigned char tag[18]; |
| int decrypt_ret; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( key, 0, sizeof( key ) ); |
| memset( msg, 0, sizeof( msg ) ); |
| memset( iv, 0, sizeof( iv ) ); |
| memset( add, 0, sizeof( add ) ); |
| memset( out, 0, sizeof( out ) ); |
| memset( tag, 0, sizeof( tag ) ); |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, |
| key, 8 * sizeof( key ) ) == 0 ); |
| |
| TEST_ASSERT( mbedtls_ccm_star_encrypt_and_tag( &ctx, msg_len, iv, iv_len, |
| add, add_len, msg, out, tag, tag_len ) == res ); |
| |
| decrypt_ret = mbedtls_ccm_star_auth_decrypt( &ctx, msg_len, iv, iv_len, add, |
| add_len, msg, out, tag, tag_len ); |
| |
| if( res == 0 && tag_len != 0 ) |
| TEST_ASSERT( decrypt_ret == MBEDTLS_ERR_CCM_AUTH_FAILED ); |
| else |
| TEST_ASSERT( decrypt_ret == res ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void mbedtls_ccm_encrypt_and_tag( int cipher_id, data_t * key, |
| data_t * msg, data_t * iv, |
| data_t * add, data_t * result ) |
| { |
| mbedtls_ccm_context ctx; |
| size_t tag_len; |
| uint8_t * msg_n_tag = (uint8_t *)malloc( result->len + 2 ); |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( msg_n_tag, 0, result->len + 2 ); |
| memcpy( msg_n_tag, msg->x, msg->len ); |
| |
| tag_len = result->len - msg->len; |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ) == 0 ); |
| |
| /* Test with input == output */ |
| TEST_ASSERT( mbedtls_ccm_encrypt_and_tag( &ctx, msg->len, iv->x, iv->len, add->x, add->len, |
| msg_n_tag, msg_n_tag, msg_n_tag + msg->len, tag_len ) == 0 ); |
| |
| TEST_ASSERT( memcmp( msg_n_tag, result->x, result->len ) == 0 ); |
| |
| /* Check we didn't write past the end */ |
| TEST_ASSERT( msg_n_tag[result->len] == 0 && msg_n_tag[result->len + 1] == 0 ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| free( msg_n_tag ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void mbedtls_ccm_auth_decrypt( int cipher_id, data_t * key, |
| data_t * msg, data_t * iv, |
| data_t * add, int tag_len, int result, |
| data_t * expected_msg ) |
| { |
| unsigned char tag[16]; |
| mbedtls_ccm_context ctx; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( tag, 0x00, sizeof( tag ) ); |
| |
| msg->len -= tag_len; |
| memcpy( tag, msg->x + msg->len, tag_len ); |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ) == 0 ); |
| |
| /* Test with input == output */ |
| TEST_ASSERT( mbedtls_ccm_auth_decrypt( &ctx, msg->len, iv->x, iv->len, add->x, add->len, |
| msg->x, msg->x, msg->x + msg->len, tag_len ) == result ); |
| |
| if( result == 0 ) |
| { |
| TEST_ASSERT( memcmp( msg->x, expected_msg->x, expected_msg->len ) == 0 ); |
| } |
| else |
| { |
| size_t i; |
| |
| for( i = 0; i < msg->len; i++ ) |
| TEST_ASSERT( msg->x[i] == 0 ); |
| } |
| |
| /* Check we didn't write past the end (where the original tag is) */ |
| TEST_ASSERT( memcmp( msg->x + msg->len, tag, tag_len ) == 0 ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void mbedtls_ccm_star_encrypt_and_tag( int cipher_id, |
| data_t *key, data_t *msg, |
| data_t *source_address, data_t *frame_counter, |
| int sec_level, data_t *add, |
| data_t *expected_result, int output_ret ) |
| { |
| unsigned char iv[13]; |
| unsigned char result[50]; |
| mbedtls_ccm_context ctx; |
| size_t iv_len, tag_len; |
| int ret; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( result, 0x00, sizeof( result ) ); |
| |
| if( sec_level % 4 == 0) |
| tag_len = 0; |
| else |
| tag_len = 1 << ( sec_level % 4 + 1); |
| |
| TEST_ASSERT( source_address->len == 8 ); |
| TEST_ASSERT( frame_counter->len == 4 ); |
| memcpy( iv, source_address->x, source_address->len ); |
| memcpy( iv + source_address->len, frame_counter->x, frame_counter->len ); |
| iv[source_address->len + frame_counter->len] = sec_level; |
| iv_len = sizeof( iv ); |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, |
| key->x, key->len * 8 ) == 0 ); |
| |
| ret = mbedtls_ccm_star_encrypt_and_tag( &ctx, msg->len, iv, iv_len, |
| add->x, add->len, msg->x, |
| result, result + msg->len, tag_len ); |
| |
| TEST_ASSERT( ret == output_ret ); |
| |
| TEST_ASSERT( memcmp( result, |
| expected_result->x, expected_result->len ) == 0 ); |
| |
| /* Check we didn't write past the end */ |
| TEST_ASSERT( result[expected_result->len] == 0 && |
| result[expected_result->len + 1] == 0 ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void mbedtls_ccm_star_auth_decrypt( int cipher_id, |
| data_t *key, data_t *msg, |
| data_t *source_address, data_t *frame_counter, |
| int sec_level, data_t *add, |
| data_t *expected_result, int output_ret ) |
| { |
| unsigned char iv[13]; |
| unsigned char result[50]; |
| mbedtls_ccm_context ctx; |
| size_t iv_len, tag_len; |
| int ret; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| memset( iv, 0x00, sizeof( iv ) ); |
| memset( result, '+', sizeof( result ) ); |
| |
| if( sec_level % 4 == 0) |
| tag_len = 0; |
| else |
| tag_len = 1 << ( sec_level % 4 + 1); |
| |
| TEST_ASSERT( source_address->len == 8 ); |
| TEST_ASSERT( frame_counter->len == 4 ); |
| memcpy( iv, source_address->x, source_address->len ); |
| memcpy( iv + source_address->len, frame_counter->x, frame_counter->len ); |
| iv[source_address->len + frame_counter->len] = sec_level; |
| iv_len = sizeof( iv ); |
| |
| TEST_ASSERT( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ) == 0 ); |
| |
| ret = mbedtls_ccm_star_auth_decrypt( &ctx, msg->len - tag_len, iv, iv_len, |
| add->x, add->len, msg->x, result, |
| msg->x + msg->len - tag_len, tag_len ); |
| |
| TEST_ASSERT( ret == output_ret ); |
| |
| TEST_ASSERT( memcmp( result, expected_result->x, |
| expected_result->len ) == 0 ); |
| |
| /* Check we didn't write past the end (where the original tag is) */ |
| TEST_ASSERT( ( msg->len + 2 ) <= sizeof( result ) ); |
| TEST_EQUAL( result[msg->len], '+' ); |
| TEST_EQUAL( result[msg->len + 1], '+' ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */ |
| void ccm_invalid_param( ) |
| { |
| struct mbedtls_ccm_context ctx; |
| unsigned char valid_buffer[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 }; |
| mbedtls_cipher_id_t valid_cipher = MBEDTLS_CIPHER_ID_AES; |
| int valid_len = sizeof(valid_buffer); |
| int valid_bitlen = valid_len * 8; |
| |
| mbedtls_ccm_init( &ctx ); |
| |
| /* mbedtls_ccm_init() */ |
| TEST_INVALID_PARAM( mbedtls_ccm_init( NULL ) ); |
| |
| /* mbedtls_ccm_setkey() */ |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_setkey( NULL, valid_cipher, valid_buffer, valid_bitlen ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_setkey( &ctx, valid_cipher, NULL, valid_bitlen ) ); |
| |
| /* mbedtls_ccm_encrypt_and_tag() */ |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( &ctx, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, NULL, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| NULL, valid_len ) ); |
| |
| /* mbedtls_ccm_star_encrypt_and_tag() */ |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, NULL, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_encrypt_and_tag( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| NULL, valid_len ) ); |
| |
| /* mbedtls_ccm_auth_decrypt() */ |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( &ctx, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, NULL, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| NULL, valid_len ) ); |
| |
| /* mbedtls_ccm_star_auth_decrypt() */ |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( &ctx, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_len, |
| valid_buffer, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| NULL, valid_buffer, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, NULL, |
| valid_buffer, valid_len ) ); |
| TEST_INVALID_PARAM_RET( |
| MBEDTLS_ERR_CCM_BAD_INPUT, |
| mbedtls_ccm_star_auth_decrypt( &ctx, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_len, |
| valid_buffer, valid_buffer, |
| NULL, valid_len ) ); |
| |
| exit: |
| mbedtls_ccm_free( &ctx ); |
| return; |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void ccm_valid_param( ) |
| { |
| TEST_VALID_PARAM( mbedtls_ccm_free( NULL ) ); |
| exit: |
| return; |
| } |
| /* END_CASE */ |
