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RIOT/tests/unittests/tests-crypto/tests-crypto-cipher.c 1.77 KB
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  /*
   * Copyright (C) 2015 Nico von Geyso
   *
   * This file is subject to the terms and conditions of the GNU Lesser
   * General Public License v2.1. See the file LICENSE in the top level
   * directory for more details.
   */
  
  #include <limits.h>
  
  #include "embUnit.h"
  #include "crypto/ciphers.h"
  #include "tests-crypto.h"
  
  static uint8_t TEST_KEY[] = {
      0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
      0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF
  };
  
  static uint8_t TEST_INP[] = {
      0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF,
      0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
  };
  
  static uint8_t TEST_ENC_AES[] = {
      0x37, 0x29, 0xa3, 0x6c, 0xaf, 0xe9, 0x84, 0xff,
      0x46, 0x22, 0x70, 0x42, 0xee, 0x24, 0x83, 0xf6
  };
  
  static void test_crypto_cipher_aes_encrypt(void)
  {
      cipher_t cipher;
      int err, cmp;
      uint8_t data[16] = {0};
  
      err = cipher_init(&cipher, CIPHER_AES_128, TEST_KEY, 16);
      TEST_ASSERT_EQUAL_INT(1, err);
  
      err = cipher_encrypt(&cipher, TEST_INP, data);
      TEST_ASSERT_EQUAL_INT(1, err);
  
      cmp = compare(TEST_ENC_AES, data, 16);
      TEST_ASSERT_MESSAGE(1 == cmp , "wrong ciphertext");
  }
  
  static void test_crypto_cipher_aes_decrypt(void)
  {
      cipher_t cipher;
      int err, cmp;
      uint8_t data[16];
  
      err = cipher_init(&cipher, CIPHER_AES_128, TEST_KEY, 16);
      TEST_ASSERT_EQUAL_INT(1, err);
  
      err = cipher_decrypt(&cipher, TEST_ENC_AES, data);
      TEST_ASSERT_EQUAL_INT(1, err);
  
      cmp = compare(TEST_INP, data, 16);
      TEST_ASSERT_MESSAGE(1 == cmp , "wrong plaintext");
  }
  
  Test* tests_crypto_cipher_tests(void)
  {
      EMB_UNIT_TESTFIXTURES(fixtures) {
          new_TestFixture(test_crypto_cipher_aes_encrypt),
          new_TestFixture(test_crypto_cipher_aes_decrypt)
      };
  
      EMB_UNIT_TESTCALLER(crypto_cipher_tests, NULL, NULL, fixtures);
  
      return (Test*)&crypto_cipher_tests;
  }