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90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/*
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* Copyright (C) 2015 Nico von Geyso
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#include <limits.h>
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#include <string.h>
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#include "embUnit.h"
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#include "crypto/ciphers.h"
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#include "tests-crypto.h"
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static uint8_t TEST_KEY[] = {
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0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
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0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF
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};
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static uint8_t TEST_INP[] = {
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0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF,
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0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
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};
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static uint8_t TEST_ENC_AES[] = {
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0x37, 0x29, 0xa3, 0x6c, 0xaf, 0xe9, 0x84, 0xff,
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0x46, 0x22, 0x70, 0x42, 0xee, 0x24, 0x83, 0xf6
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};
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static void test_crypto_cipher_aes_encrypt(void)
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{
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cipher_t cipher;
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int err, cmp;
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uint8_t data[16] = { 0 };
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err = cipher_init(&cipher, CIPHER_AES, TEST_KEY, 16);
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TEST_ASSERT_EQUAL_INT(1, err);
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err = cipher_encrypt(&cipher, TEST_INP, data);
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TEST_ASSERT_EQUAL_INT(1, err);
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cmp = compare(TEST_ENC_AES, data, 16);
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TEST_ASSERT_MESSAGE(1 == cmp, "wrong ciphertext");
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}
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static void test_crypto_cipher_aes_decrypt(void)
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{
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cipher_t cipher;
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int err, cmp;
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uint8_t data[16];
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err = cipher_init(&cipher, CIPHER_AES, TEST_KEY, 16);
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TEST_ASSERT_EQUAL_INT(1, err);
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err = cipher_decrypt(&cipher, TEST_ENC_AES, data);
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TEST_ASSERT_EQUAL_INT(1, err);
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cmp = compare(TEST_INP, data, 16);
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TEST_ASSERT_MESSAGE(1 == cmp, "wrong plaintext");
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}
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static void test_crypto_cipher_init_aes_key_length(void)
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{
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cipher_t cipher;
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int err;
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/* A keylength of 64 bit is not supported by AES */
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uint8_t unsupported_key_1[8];
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memset(unsupported_key_1, 0, sizeof(unsupported_key_1));
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err =
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cipher_init(&cipher, CIPHER_AES, unsupported_key_1,
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sizeof(unsupported_key_1));
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TEST_ASSERT_EQUAL_INT(CIPHER_ERR_INVALID_KEY_SIZE, err);
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}
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Test *tests_crypto_cipher_tests(void)
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{
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EMB_UNIT_TESTFIXTURES(fixtures) {
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new_TestFixture(test_crypto_cipher_aes_encrypt),
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new_TestFixture(test_crypto_cipher_aes_decrypt),
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new_TestFixture(test_crypto_cipher_init_aes_key_length),
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};
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EMB_UNIT_TESTCALLER(crypto_cipher_tests, NULL, NULL, fixtures);
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return (Test *)&crypto_cipher_tests;
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}
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