int main(int argc, char** argv) {
    symmetric_key key;
    int rc;
    

    unsigned char plaintext[sizeof(ciphertext)];
    memset(plaintext, 0, sizeof(plaintext));


    rc = rijndael_setup(userKey, sizeof(userKey), 0, &key);
    if (rc != CRYPT_OK) {
        fprintf(stderr, "ERROR: rijndael_setup returned %d.\n", rc);
        exit(1);
    }

    rc = rijndael_ecb_decrypt(ciphertext, plaintext, &key);
    if (rc != CRYPT_OK) {
        fprintf(stderr, "ERROR: rijndael_ecb_decrypt returned %d.\n", rc);
        exit(1);
    }

    rijndael_done(&key);

    for(int i = 0; i < sizeof(plaintext); i++) {
        putchar(plaintext[i]);
    }

    return 0;
}
Exemple #2
0
/* Initialization entry point.
*/
static void
rijndael_init(RIJNDAEL_context *ctx, const char *key,
    const int key_len, const unsigned char *data,
    int encryption_mode)
{

    /* The default is Rijndael in CBC mode
    */
    if(encryption_mode == FKO_ENC_MODE_CBC
            || encryption_mode == FKO_ENC_MODE_CBC_LEGACY_IV)
        ctx->mode = MODE_CBC;
    else if(encryption_mode == FKO_ENC_MODE_CTR)
        ctx->mode = MODE_CTR;
    else if(encryption_mode == FKO_ENC_MODE_PCBC)
        ctx->mode = MODE_PCBC;
    else if(encryption_mode == FKO_ENC_MODE_OFB)
        ctx->mode = MODE_OFB;
    else if(encryption_mode == FKO_ENC_MODE_CFB)
        ctx->mode = MODE_CFB;
    else if(encryption_mode == FKO_ENC_MODE_ECB)
        ctx->mode = MODE_ECB;
    else  /* shouldn't get this far */
        ctx->mode = encryption_mode;

    /* Generate the salt and initialization vector.
    */
    rij_salt_and_iv(ctx, key, key_len, data, encryption_mode);

    /* Intialize our Rijndael context.
    */
    rijndael_setup(ctx, RIJNDAEL_MAX_KEYSIZE, ctx->key);
}
Exemple #3
0
/**
  Performs a self-test of the AES block cipher
  @return CRYPT_OK if functional, CRYPT_NOP if self-test has been disabled
*/
int ECB_TEST(void)
{
 #ifndef LTC_TEST
    return CRYPT_NOP;
 #else    
 int err;
 static const struct {
     int keylen;
     unsigned char key[32], pt[16], ct[16];
 } tests[] = {
    { 16,
      { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
        0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, 
      { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
        0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff },
      { 0x69, 0xc4, 0xe0, 0xd8, 0x6a, 0x7b, 0x04, 0x30, 
        0xd8, 0xcd, 0xb7, 0x80, 0x70, 0xb4, 0xc5, 0x5a }
    }, { 
      24,
      { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
        0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17 },
      { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
        0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff },
      { 0xdd, 0xa9, 0x7c, 0xa4, 0x86, 0x4c, 0xdf, 0xe0, 
        0x6e, 0xaf, 0x70, 0xa0, 0xec, 0x0d, 0x71, 0x91 }
    }, {
      32,
      { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
        0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 
        0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
      { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
        0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff },
      { 0x8e, 0xa2, 0xb7, 0xca, 0x51, 0x67, 0x45, 0xbf, 
        0xea, 0xfc, 0x49, 0x90, 0x4b, 0x49, 0x60, 0x89 }
    }
 };
 
 symmetric_key key;
 unsigned char tmp[2][16];
 int i, y;
 
 for (i = 0; i < (int)(sizeof(tests)/sizeof(tests[0])); i++) {
    zeromem(&key, sizeof(key));
    if ((err = rijndael_setup(tests[i].key, tests[i].keylen, 0, &key)) != CRYPT_OK) { 
       return err;
    }
  
    rijndael_ecb_encrypt(tests[i].pt, tmp[0], &key);
    rijndael_ecb_decrypt(tmp[0], tmp[1], &key);
    if (XMEMCMP(tmp[0], tests[i].ct, 16) || XMEMCMP(tmp[1], tests[i].pt, 16)) { 
#if 0
       printf("\n\nTest %d failed\n", i);
       if (XMEMCMP(tmp[0], tests[i].ct, 16)) {
          printf("CT: ");
          for (i = 0; i < 16; i++) {
             printf("%02x ", tmp[0][i]);
          }
          printf("\n");
       } else {
          printf("PT: ");
          for (i = 0; i < 16; i++) {
             printf("%02x ", tmp[1][i]);
          }
          printf("\n");
       }
#endif       
        return CRYPT_FAIL_TESTVECTOR;
    }

      /* now see if we can encrypt all zero bytes 1000 times, decrypt and come back where we started */
      for (y = 0; y < 16; y++) tmp[0][y] = 0;
      for (y = 0; y < 1000; y++) rijndael_ecb_encrypt(tmp[0], tmp[0], &key);
      for (y = 0; y < 1000; y++) rijndael_ecb_decrypt(tmp[0], tmp[0], &key);
      for (y = 0; y < 16; y++) if (tmp[0][y] != 0) return CRYPT_FAIL_TESTVECTOR;
 }       
 return CRYPT_OK;
 #endif
}