/* BEGIN_HEADER */ #include "mbedtls/gcm.h" /* END_HEADER */ /* BEGIN_DEPENDENCIES * depends_on:MBEDTLS_GCM_C * END_DEPENDENCIES */ /* BEGIN_CASE */ void gcm_bad_parameters(int cipher_id, int direction, data_t *key_str, data_t *src_str, data_t *iv_str, data_t *add_str, int tag_len_bits, int gcm_result) { unsigned char output[128]; unsigned char tag_output[16]; mbedtls_gcm_context ctx; size_t tag_len = tag_len_bits / 8; mbedtls_gcm_init(&ctx); memset(output, 0x00, sizeof(output)); memset(tag_output, 0x00, sizeof(tag_output)); TEST_ASSERT(mbedtls_gcm_setkey(&ctx, cipher_id, key_str->x, key_str->len * 8) == 0); TEST_ASSERT(mbedtls_gcm_crypt_and_tag(&ctx, direction, src_str->len, iv_str->x, iv_str->len, add_str->x, add_str->len, src_str->x, output, tag_len, tag_output) == gcm_result); exit: mbedtls_gcm_free(&ctx); } /* END_CASE */ /* BEGIN_CASE */ void gcm_encrypt_and_tag(int cipher_id, data_t *key_str, data_t *src_str, data_t *iv_str, data_t *add_str, data_t *dst, int tag_len_bits, data_t *tag, int init_result) { unsigned char output[128]; unsigned char tag_output[16]; mbedtls_gcm_context ctx; size_t tag_len = tag_len_bits / 8; mbedtls_gcm_init(&ctx); memset(output, 0x00, 128); memset(tag_output, 0x00, 16); TEST_ASSERT(mbedtls_gcm_setkey(&ctx, cipher_id, key_str->x, key_str->len * 8) == init_result); if (init_result == 0) { TEST_ASSERT(mbedtls_gcm_crypt_and_tag(&ctx, MBEDTLS_GCM_ENCRYPT, src_str->len, iv_str->x, iv_str->len, add_str->x, add_str->len, src_str->x, output, tag_len, tag_output) == 0); TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x, src_str->len, dst->len) == 0); TEST_ASSERT(mbedtls_test_hexcmp(tag_output, tag->x, tag_len, tag->len) == 0); } exit: mbedtls_gcm_free(&ctx); } /* END_CASE */ /* BEGIN_CASE */ void gcm_decrypt_and_verify(int cipher_id, data_t *key_str, data_t *src_str, data_t *iv_str, data_t *add_str, int tag_len_bits, data_t *tag_str, char *result, data_t *pt_result, int init_result) { unsigned char output[128]; mbedtls_gcm_context ctx; int ret; size_t tag_len = tag_len_bits / 8; mbedtls_gcm_init(&ctx); memset(output, 0x00, 128); TEST_ASSERT(mbedtls_gcm_setkey(&ctx, cipher_id, key_str->x, key_str->len * 8) == init_result); if (init_result == 0) { ret = mbedtls_gcm_auth_decrypt(&ctx, src_str->len, iv_str->x, iv_str->len, add_str->x, add_str->len, tag_str->x, tag_len, src_str->x, output); if (strcmp("FAIL", result) == 0) { TEST_ASSERT(ret == MBEDTLS_ERR_GCM_AUTH_FAILED); } else { TEST_ASSERT(ret == 0); TEST_ASSERT(mbedtls_test_hexcmp(output, pt_result->x, src_str->len, pt_result->len) == 0); } } exit: mbedtls_gcm_free(&ctx); } /* END_CASE */ /* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */ void gcm_invalid_param() { mbedtls_gcm_context ctx; unsigned char valid_buffer[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 }; mbedtls_cipher_id_t valid_cipher = MBEDTLS_CIPHER_ID_AES; int valid_mode = MBEDTLS_GCM_ENCRYPT; int valid_len = sizeof(valid_buffer); int valid_bitlen = 128, invalid_bitlen = 1; mbedtls_gcm_init(&ctx); /* mbedtls_gcm_init() */ TEST_INVALID_PARAM(mbedtls_gcm_init(NULL)); /* mbedtls_gcm_setkey */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_setkey(NULL, valid_cipher, valid_buffer, valid_bitlen)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_setkey(&ctx, valid_cipher, NULL, valid_bitlen)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_setkey(&ctx, valid_cipher, valid_buffer, invalid_bitlen)); /* mbedtls_gcm_crypt_and_tag() */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(NULL, valid_mode, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer, valid_len, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(&ctx, valid_mode, valid_len, NULL, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer, valid_len, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(&ctx, valid_mode, valid_len, valid_buffer, valid_len, NULL, valid_len, valid_buffer, valid_buffer, valid_len, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(&ctx, valid_mode, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, NULL, valid_buffer, valid_len, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(&ctx, valid_mode, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, NULL, valid_len, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_crypt_and_tag(&ctx, valid_mode, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer, valid_len, NULL)); /* mbedtls_gcm_auth_decrypt() */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(NULL, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(&ctx, valid_len, NULL, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(&ctx, valid_len, valid_buffer, valid_len, NULL, valid_len, valid_buffer, valid_len, valid_buffer, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(&ctx, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, NULL, valid_len, valid_buffer, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(&ctx, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, NULL, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_auth_decrypt(&ctx, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, valid_len, valid_buffer, NULL)); /* mbedtls_gcm_starts() */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_starts(NULL, valid_mode, valid_buffer, valid_len, valid_buffer, valid_len)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_starts(&ctx, valid_mode, NULL, valid_len, valid_buffer, valid_len)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_starts(&ctx, valid_mode, valid_buffer, valid_len, NULL, valid_len)); /* mbedtls_gcm_update() */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_update(NULL, valid_len, valid_buffer, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_update(&ctx, valid_len, NULL, valid_buffer)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_update(&ctx, valid_len, valid_buffer, NULL)); /* mbedtls_gcm_finish() */ TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_finish(NULL, valid_buffer, valid_len)); TEST_INVALID_PARAM_RET( MBEDTLS_ERR_GCM_BAD_INPUT, mbedtls_gcm_finish(&ctx, NULL, valid_len)); exit: mbedtls_gcm_free(&ctx); } /* END_CASE */ /* BEGIN_CASE */ void gcm_valid_param() { TEST_VALID_PARAM(mbedtls_gcm_free(NULL)); exit: return; } /* END_CASE */ /* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST:MBEDTLS_AES_C */ void gcm_selftest() { TEST_ASSERT(mbedtls_gcm_self_test(1) == 0); } /* END_CASE */