mbedtls/tests/suites/test_suite_block_cipher.function

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/* BEGIN_HEADER */
#include "block_cipher_internal.h"
#define BLOCK_SIZE 16
#if defined(MBEDTLS_AES_C)
#define VALID_CIPHER_ID MBEDTLS_CIPHER_ID_AES
#define BADKEY_ERROR MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
#elif defined(MBEDTLS_ARIA_C)
#define VALID_CIPHER_ID MBEDTLS_CIPHER_ID_ARIA
#define BADKEY_ERROR MBEDTLS_ERR_ARIA_BAD_INPUT_DATA
#elif defined(MBEDTLS_CAMELLIA_C)
#define VALID_CIPHER_ID MBEDTLS_CIPHER_ID_CAMELLIA
#define BADKEY_ERROR MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA
#else
#undef VALID_CIPHER_ID
#endif
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_BLOCK_CIPHER_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE depends_on:VALID_CIPHER_ID */
void invalid()
{
/* That size is valid for a key or an input/output block. */
unsigned char buf[16] = { 0 };
mbedtls_block_cipher_context_t ctx;
mbedtls_block_cipher_init(&ctx);
/* Bad parameters to setup */
TEST_EQUAL(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_block_cipher_setup(&ctx, MBEDTLS_CIPHER_ID_NONE));
TEST_EQUAL(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA,
mbedtls_block_cipher_setup(&ctx, MBEDTLS_CIPHER_ID_DES));
/* setkey() before successful setup() */
TEST_EQUAL(MBEDTLS_ERR_CIPHER_INVALID_CONTEXT,
mbedtls_block_cipher_setkey(&ctx, buf, 128));
/* encrypt() before successful setup() */
TEST_EQUAL(MBEDTLS_ERR_CIPHER_INVALID_CONTEXT,
mbedtls_block_cipher_encrypt(&ctx, buf, buf));
/* free() before successful setup()
* No return value to check, but shouldn't cause memory errors. */
mbedtls_block_cipher_free(&ctx);
/* Now properly setup the context */
mbedtls_block_cipher_init(&ctx);
TEST_EQUAL(0, mbedtls_block_cipher_setup(&ctx, VALID_CIPHER_ID));
/* Bad parameters to setkey() */
TEST_EQUAL(BADKEY_ERROR,
mbedtls_block_cipher_setkey(&ctx, buf, 42));
exit:
mbedtls_block_cipher_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void test_vec(int cipher_id_arg, data_t *key, data_t *input, data_t *outref)
{
mbedtls_block_cipher_context_t ctx;
mbedtls_cipher_id_t cipher_id = cipher_id_arg;
unsigned char output[BLOCK_SIZE];
mbedtls_block_cipher_init(&ctx);
memset(output, 0x00, sizeof(output));
TEST_EQUAL(0, mbedtls_block_cipher_setup(&ctx, cipher_id));
TEST_EQUAL(0, mbedtls_block_cipher_setkey(&ctx, key->x, 8 * key->len));
/* Encrypt with input != output */
TEST_EQUAL(0, mbedtls_block_cipher_encrypt(&ctx, input->x, output));
ASSERT_COMPARE(output, BLOCK_SIZE, outref->x, outref->len);
/* Encrypt with input == output.
* (Also, encrypting again ensures the previous call to encrypt()
* did not change the state of the context.) */
memcpy(output, input->x, BLOCK_SIZE);
TEST_EQUAL(0, mbedtls_block_cipher_encrypt(&ctx, output, output));
ASSERT_COMPARE(output, BLOCK_SIZE, outref->x, outref->len);
exit:
mbedtls_block_cipher_free(&ctx);
}
/* END_CASE */
/* BEGIN_CASE */
void block_cipher_psa_dynamic_dispatch(int cipher_type, int pre_psa_ret, int post_psa_engine)
{
mbedtls_block_cipher_context_t ctx;
(void) post_psa_engine;
/* Intentionally no PSA init here! (Will be done later.) */
mbedtls_block_cipher_init(&ctx);
/* Before PSA crypto init */
TEST_EQUAL(pre_psa_ret, mbedtls_block_cipher_setup(&ctx, cipher_type));
#if defined(MBEDTLS_BLOCK_CIPHER_SOME_PSA)
TEST_EQUAL(ctx.engine, MBEDTLS_BLOCK_CIPHER_ENGINE_LEGACY);
#endif
mbedtls_block_cipher_free(&ctx);
/* Now initilize PSA Crypto */
BLOCK_CIPHER_PSA_INIT();
mbedtls_block_cipher_init(&ctx);
/* After PSA Crypto init */
TEST_EQUAL(0, mbedtls_block_cipher_setup(&ctx, cipher_type));
#if defined(MBEDTLS_BLOCK_CIPHER_SOME_PSA)
TEST_EQUAL(ctx.engine, post_psa_engine);
#endif
exit:
mbedtls_block_cipher_free(&ctx);
BLOCK_CIPHER_PSA_DONE();
}
/* END_CASE */