615 lines
18 KiB
C
615 lines
18 KiB
C
/* BEGIN_HEADER */
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#include "mbedtls/aes.h"
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/* Test AES with a copied context.
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*
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* master, enc and dec must be AES context objects. They don't need to
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* be initialized, and are left freed.
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*/
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static int test_copy(const data_t *key,
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mbedtls_aes_context *master,
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mbedtls_aes_context *enc,
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mbedtls_aes_context *dec)
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{
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unsigned char plaintext[16] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
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0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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};
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unsigned char ciphertext[16];
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unsigned char output[16];
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// Set key and encrypt with original context
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mbedtls_aes_init(master);
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TEST_ASSERT(mbedtls_aes_setkey_enc(master, key->x,
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key->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_ecb(master, MBEDTLS_AES_ENCRYPT,
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plaintext, ciphertext) == 0);
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*enc = *master;
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// Set key for decryption with original context
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mbedtls_aes_init(master);
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TEST_ASSERT(mbedtls_aes_setkey_dec(master, key->x,
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key->len * 8) == 0);
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*dec = *master;
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// Wipe the original context to make sure nothing from it is used
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memset(master, 0, sizeof(*master));
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// Encrypt with copied context
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TEST_ASSERT(mbedtls_aes_crypt_ecb(enc, MBEDTLS_AES_ENCRYPT,
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plaintext, output) == 0);
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ASSERT_COMPARE(ciphertext, 16, output, 16);
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mbedtls_aes_free(enc);
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// Decrypt with copied context
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TEST_ASSERT(mbedtls_aes_crypt_ecb(dec, MBEDTLS_AES_DECRYPT,
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ciphertext, output) == 0);
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ASSERT_COMPARE(plaintext, 16, output, 16);
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mbedtls_aes_free(dec);
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return 1;
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exit:
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/* Bug: we may be leaving something unfreed. This is harmless
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* in our built-in implementations, but might cause a memory leak
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* with alternative implementations. */
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return 0;
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}
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_AES_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE */
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void aes_encrypt_ecb(data_t *key_str, data_t *src_str,
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data_t *dst, int setkey_result)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == setkey_result);
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if (setkey_result == 0) {
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TEST_ASSERT(mbedtls_aes_crypt_ecb(&ctx, MBEDTLS_AES_ENCRYPT, src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x, 16, dst->len) == 0);
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}
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void aes_decrypt_ecb(data_t *key_str, data_t *src_str,
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data_t *dst, int setkey_result)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_dec(&ctx, key_str->x, key_str->len * 8) == setkey_result);
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if (setkey_result == 0) {
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TEST_ASSERT(mbedtls_aes_crypt_ecb(&ctx, MBEDTLS_AES_DECRYPT, src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x, 16, dst->len) == 0);
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}
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CBC */
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void aes_encrypt_cbc(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst,
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int cbc_result)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_ENCRYPT, src_str->len, iv_str->x,
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src_str->x, output) == cbc_result);
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if (cbc_result == 0) {
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x,
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src_str->len, dst->len) == 0);
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}
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CBC */
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void aes_decrypt_cbc(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst,
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int cbc_result)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_dec(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_DECRYPT, src_str->len, iv_str->x,
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src_str->x, output) == cbc_result);
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if (cbc_result == 0) {
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x,
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src_str->len, dst->len) == 0);
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}
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_XTS */
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void aes_encrypt_xts(char *hex_key_string, char *hex_data_unit_string,
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char *hex_src_string, char *hex_dst_string)
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{
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enum { AES_BLOCK_SIZE = 16 };
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unsigned char *data_unit = NULL;
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unsigned char *key = NULL;
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unsigned char *src = NULL;
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unsigned char *dst = NULL;
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unsigned char *output = NULL;
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mbedtls_aes_xts_context ctx;
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size_t key_len, src_len, dst_len, data_unit_len;
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mbedtls_aes_xts_init(&ctx);
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data_unit = mbedtls_test_unhexify_alloc(hex_data_unit_string,
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&data_unit_len);
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TEST_ASSERT(data_unit_len == AES_BLOCK_SIZE);
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key = mbedtls_test_unhexify_alloc(hex_key_string, &key_len);
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TEST_ASSERT(key_len % 2 == 0);
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src = mbedtls_test_unhexify_alloc(hex_src_string, &src_len);
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dst = mbedtls_test_unhexify_alloc(hex_dst_string, &dst_len);
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TEST_ASSERT(src_len == dst_len);
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output = mbedtls_test_zero_alloc(dst_len);
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TEST_ASSERT(mbedtls_aes_xts_setkey_enc(&ctx, key, key_len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_xts(&ctx, MBEDTLS_AES_ENCRYPT, src_len,
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data_unit, src, output) == 0);
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TEST_ASSERT(memcmp(output, dst, dst_len) == 0);
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exit:
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mbedtls_aes_xts_free(&ctx);
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mbedtls_free(data_unit);
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mbedtls_free(key);
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mbedtls_free(src);
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mbedtls_free(dst);
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mbedtls_free(output);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_XTS */
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void aes_decrypt_xts(char *hex_key_string, char *hex_data_unit_string,
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char *hex_dst_string, char *hex_src_string)
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{
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enum { AES_BLOCK_SIZE = 16 };
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unsigned char *data_unit = NULL;
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unsigned char *key = NULL;
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unsigned char *src = NULL;
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unsigned char *dst = NULL;
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unsigned char *output = NULL;
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mbedtls_aes_xts_context ctx;
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size_t key_len, src_len, dst_len, data_unit_len;
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mbedtls_aes_xts_init(&ctx);
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data_unit = mbedtls_test_unhexify_alloc(hex_data_unit_string,
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&data_unit_len);
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TEST_ASSERT(data_unit_len == AES_BLOCK_SIZE);
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key = mbedtls_test_unhexify_alloc(hex_key_string, &key_len);
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TEST_ASSERT(key_len % 2 == 0);
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src = mbedtls_test_unhexify_alloc(hex_src_string, &src_len);
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dst = mbedtls_test_unhexify_alloc(hex_dst_string, &dst_len);
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TEST_ASSERT(src_len == dst_len);
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output = mbedtls_test_zero_alloc(dst_len);
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TEST_ASSERT(mbedtls_aes_xts_setkey_dec(&ctx, key, key_len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_xts(&ctx, MBEDTLS_AES_DECRYPT, src_len,
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data_unit, src, output) == 0);
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TEST_ASSERT(memcmp(output, dst, dst_len) == 0);
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exit:
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mbedtls_aes_xts_free(&ctx);
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mbedtls_free(data_unit);
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mbedtls_free(key);
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mbedtls_free(src);
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mbedtls_free(dst);
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mbedtls_free(output);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_XTS */
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void aes_crypt_xts_size(int size, int retval)
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{
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mbedtls_aes_xts_context ctx;
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const unsigned char src[16] = { 0 };
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unsigned char output[16];
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unsigned char data_unit[16];
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size_t length = size;
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mbedtls_aes_xts_init(&ctx);
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memset(data_unit, 0x00, sizeof(data_unit));
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TEST_ASSERT(mbedtls_aes_crypt_xts(&ctx, MBEDTLS_AES_ENCRYPT, length, data_unit, src,
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output) == retval);
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exit:
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mbedtls_aes_xts_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_XTS */
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void aes_crypt_xts_keysize(int size, int retval)
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{
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mbedtls_aes_xts_context ctx;
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const unsigned char key[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
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size_t key_len = size;
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mbedtls_aes_xts_init(&ctx);
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TEST_ASSERT(mbedtls_aes_xts_setkey_enc(&ctx, key, key_len * 8) == retval);
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TEST_ASSERT(mbedtls_aes_xts_setkey_dec(&ctx, key, key_len * 8) == retval);
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exit:
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mbedtls_aes_xts_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CFB */
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void aes_encrypt_cfb128(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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size_t iv_offset = 0;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cfb128(&ctx, MBEDTLS_AES_ENCRYPT, 16, &iv_offset, iv_str->x,
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src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x, 16, dst->len) == 0);
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CFB */
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void aes_decrypt_cfb128(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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size_t iv_offset = 0;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cfb128(&ctx, MBEDTLS_AES_DECRYPT, 16, &iv_offset, iv_str->x,
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src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x, 16, dst->len) == 0);
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CFB */
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void aes_encrypt_cfb8(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cfb8(&ctx, MBEDTLS_AES_ENCRYPT, src_str->len, iv_str->x,
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src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x,
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src_str->len, dst->len) == 0);
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_CFB */
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void aes_decrypt_cfb8(data_t *key_str, data_t *iv_str,
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data_t *src_str, data_t *dst)
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{
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unsigned char output[100];
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mbedtls_aes_context ctx;
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memset(output, 0x00, 100);
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mbedtls_aes_init(&ctx);
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x, key_str->len * 8) == 0);
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TEST_ASSERT(mbedtls_aes_crypt_cfb8(&ctx, MBEDTLS_AES_DECRYPT, src_str->len, iv_str->x,
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src_str->x, output) == 0);
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TEST_ASSERT(mbedtls_test_hexcmp(output, dst->x,
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src_str->len, dst->len) == 0);
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CIPHER_MODE_OFB */
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void aes_encrypt_ofb(int fragment_size, data_t *key_str,
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data_t *iv_str, data_t *src_str,
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data_t *expected_output)
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{
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unsigned char output[32];
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mbedtls_aes_context ctx;
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size_t iv_offset = 0;
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int in_buffer_len;
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unsigned char *src_str_next;
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memset(output, 0x00, sizeof(output));
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mbedtls_aes_init(&ctx);
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TEST_ASSERT((size_t) fragment_size < sizeof(output));
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TEST_ASSERT(mbedtls_aes_setkey_enc(&ctx, key_str->x,
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key_str->len * 8) == 0);
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in_buffer_len = src_str->len;
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src_str_next = src_str->x;
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while (in_buffer_len > 0) {
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TEST_ASSERT(mbedtls_aes_crypt_ofb(&ctx, fragment_size, &iv_offset,
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iv_str->x, src_str_next, output) == 0);
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TEST_ASSERT(memcmp(output, expected_output->x, fragment_size) == 0);
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in_buffer_len -= fragment_size;
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expected_output->x += fragment_size;
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src_str_next += fragment_size;
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if (in_buffer_len < fragment_size) {
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fragment_size = in_buffer_len;
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}
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}
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exit:
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mbedtls_aes_free(&ctx);
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void aes_invalid_mode()
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{
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mbedtls_aes_context aes_ctx;
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const unsigned char in[16] = { 0 };
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unsigned char out[16];
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const int invalid_mode = 42;
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TEST_EQUAL(MBEDTLS_ERR_AES_BAD_INPUT_DATA,
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mbedtls_aes_crypt_ecb(&aes_ctx, invalid_mode, in, out));
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#if defined(MBEDTLS_CIPHER_MODE_CBC)
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TEST_EQUAL(MBEDTLS_ERR_AES_BAD_INPUT_DATA,
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mbedtls_aes_crypt_cbc(&aes_ctx, invalid_mode, 16,
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out, in, out));
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#endif /* MBEDTLS_CIPHER_MODE_CBC */
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#if defined(MBEDTLS_CIPHER_MODE_XTS)
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mbedtls_aes_xts_context xts_ctx;
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TEST_EQUAL(MBEDTLS_ERR_AES_BAD_INPUT_DATA,
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mbedtls_aes_crypt_xts(&xts_ctx, invalid_mode, 16,
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in, in, out));
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#endif /* MBEDTLS_CIPHER_MODE_XTS */
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#if defined(MBEDTLS_CIPHER_MODE_CFB)
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size_t size;
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TEST_EQUAL(MBEDTLS_ERR_AES_BAD_INPUT_DATA,
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mbedtls_aes_crypt_cfb128(&aes_ctx, invalid_mode, 16,
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&size, out, in, out));
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TEST_EQUAL(MBEDTLS_ERR_AES_BAD_INPUT_DATA,
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mbedtls_aes_crypt_cfb8(&aes_ctx, invalid_mode, 16,
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out, in, out));
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#endif /* MBEDTLS_CIPHER_MODE_CFB */
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void aes_misc_params()
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{
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#if defined(MBEDTLS_CIPHER_MODE_CBC) || \
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defined(MBEDTLS_CIPHER_MODE_XTS) || \
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defined(MBEDTLS_CIPHER_MODE_CFB) || \
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defined(MBEDTLS_CIPHER_MODE_OFB)
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const unsigned char in[16] = { 0 };
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unsigned char out[16];
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#endif
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#if defined(MBEDTLS_CIPHER_MODE_CBC) || \
|
|
defined(MBEDTLS_CIPHER_MODE_CFB) || \
|
|
defined(MBEDTLS_CIPHER_MODE_OFB)
|
|
mbedtls_aes_context aes_ctx;
|
|
#endif
|
|
#if defined(MBEDTLS_CIPHER_MODE_XTS)
|
|
mbedtls_aes_xts_context xts_ctx;
|
|
#endif
|
|
#if defined(MBEDTLS_CIPHER_MODE_CFB) || \
|
|
defined(MBEDTLS_CIPHER_MODE_OFB)
|
|
size_t size;
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_CIPHER_MODE_CBC)
|
|
TEST_ASSERT(mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_ENCRYPT,
|
|
15,
|
|
out, in, out)
|
|
== MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH);
|
|
TEST_ASSERT(mbedtls_aes_crypt_cbc(&aes_ctx, MBEDTLS_AES_ENCRYPT,
|
|
17,
|
|
out, in, out)
|
|
== MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH);
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_CIPHER_MODE_XTS)
|
|
TEST_ASSERT(mbedtls_aes_crypt_xts(&xts_ctx, MBEDTLS_AES_ENCRYPT,
|
|
15,
|
|
in, in, out)
|
|
== MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH);
|
|
TEST_ASSERT(mbedtls_aes_crypt_xts(&xts_ctx, MBEDTLS_AES_ENCRYPT,
|
|
(1 << 24) + 1,
|
|
in, in, out)
|
|
== MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH);
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_CIPHER_MODE_CFB)
|
|
size = 16;
|
|
TEST_ASSERT(mbedtls_aes_crypt_cfb128(&aes_ctx, MBEDTLS_AES_ENCRYPT, 16,
|
|
&size, out, in, out)
|
|
== MBEDTLS_ERR_AES_BAD_INPUT_DATA);
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_CIPHER_MODE_OFB)
|
|
size = 16;
|
|
TEST_ASSERT(mbedtls_aes_crypt_ofb(&aes_ctx, 16, &size, out, in, out)
|
|
== MBEDTLS_ERR_AES_BAD_INPUT_DATA);
|
|
#endif
|
|
|
|
/*
|
|
* The following line needs to be added to make the code compilable
|
|
* when all the conditions above will be not define in a specific
|
|
* choice of features.
|
|
*/
|
|
TEST_ASSERT(1);
|
|
/* TODO: It will be removed when the whole test will be reworked */
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE */
|
|
void aes_ecb_copy_context(data_t *key)
|
|
{
|
|
/* We test context copying multiple times, with different alignments
|
|
* of the original and of the copies. */
|
|
|
|
void *src = NULL; // Memory block containing the original context
|
|
void *enc = NULL; // Memory block containing the copy doing encryption
|
|
void *dec = NULL; // Memory block containing the copy doing decryption
|
|
|
|
struct align1 {
|
|
char bump;
|
|
mbedtls_aes_context ctx;
|
|
};
|
|
|
|
/* All peak alignment */
|
|
ASSERT_ALLOC(src, sizeof(mbedtls_aes_context));
|
|
ASSERT_ALLOC(enc, sizeof(mbedtls_aes_context));
|
|
ASSERT_ALLOC(dec, sizeof(mbedtls_aes_context));
|
|
if (!test_copy(key, src, enc, dec)) {
|
|
goto exit;
|
|
}
|
|
mbedtls_free(src);
|
|
src = NULL;
|
|
mbedtls_free(enc);
|
|
enc = NULL;
|
|
mbedtls_free(dec);
|
|
dec = NULL;
|
|
|
|
/* Original shifted */
|
|
ASSERT_ALLOC(src, sizeof(struct align1));
|
|
ASSERT_ALLOC(enc, sizeof(mbedtls_aes_context));
|
|
ASSERT_ALLOC(dec, sizeof(mbedtls_aes_context));
|
|
if (!test_copy(key, &((struct align1 *) src)->ctx, enc, dec)) {
|
|
goto exit;
|
|
}
|
|
mbedtls_free(src);
|
|
src = NULL;
|
|
mbedtls_free(enc);
|
|
enc = NULL;
|
|
mbedtls_free(dec);
|
|
dec = NULL;
|
|
|
|
/* Copies shifted */
|
|
ASSERT_ALLOC(src, sizeof(mbedtls_aes_context));
|
|
ASSERT_ALLOC(enc, sizeof(struct align1));
|
|
ASSERT_ALLOC(dec, sizeof(struct align1));
|
|
if (!test_copy(key,
|
|
src,
|
|
&((struct align1 *) enc)->ctx,
|
|
&((struct align1 *) dec)->ctx)) {
|
|
goto exit;
|
|
}
|
|
mbedtls_free(src);
|
|
src = NULL;
|
|
mbedtls_free(enc);
|
|
enc = NULL;
|
|
mbedtls_free(dec);
|
|
dec = NULL;
|
|
|
|
/* Source and copies shifted */
|
|
ASSERT_ALLOC(src, sizeof(struct align1));
|
|
ASSERT_ALLOC(enc, sizeof(struct align1));
|
|
ASSERT_ALLOC(dec, sizeof(struct align1));
|
|
if (!test_copy(key,
|
|
&((struct align1 *) src)->ctx,
|
|
&((struct align1 *) enc)->ctx,
|
|
&((struct align1 *) dec)->ctx)) {
|
|
goto exit;
|
|
}
|
|
mbedtls_free(src);
|
|
src = NULL;
|
|
mbedtls_free(enc);
|
|
enc = NULL;
|
|
mbedtls_free(dec);
|
|
dec = NULL;
|
|
|
|
exit:
|
|
mbedtls_free(src);
|
|
mbedtls_free(enc);
|
|
mbedtls_free(dec);
|
|
}
|
|
/* END_CASE */
|
|
|
|
/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
|
|
void aes_selftest()
|
|
{
|
|
TEST_ASSERT(mbedtls_aes_self_test(1) == 0);
|
|
}
|
|
/* END_CASE */
|