Пример #1
0
    public void performTest() throws Exception {
      byte[] salt = new byte[16];
      int iCount = 100;

      for (int i = 0; i != salt.length; i++) {
        salt[i] = (byte) i;
      }

      OpenSSLPBEParametersGenerator pGen = new OpenSSLPBEParametersGenerator();

      pGen.init(PBEParametersGenerator.PKCS5PasswordToBytes(password), salt, iCount);

      ParametersWithIV params = (ParametersWithIV) pGen.generateDerivedParameters(keySize, ivSize);

      SecretKeySpec encKey =
          new SecretKeySpec(((KeyParameter) params.getParameters()).getKey(), baseAlgorithm);

      Cipher c;

      if (baseAlgorithm.equals("RC4")) {
        c = Cipher.getInstance(baseAlgorithm, "SC");

        c.init(Cipher.ENCRYPT_MODE, encKey);
      } else {
        c = Cipher.getInstance(baseAlgorithm + "/CBC/PKCS7Padding", "SC");

        c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));
      }

      byte[] enc = c.doFinal(salt);

      c = Cipher.getInstance(algorithm, "SC");

      PBEKeySpec keySpec = new PBEKeySpec(password, salt, iCount);
      SecretKeyFactory fact = SecretKeyFactory.getInstance(algorithm, "SC");

      c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec));

      byte[] dec = c.doFinal(enc);

      if (!Arrays.areEqual(salt, dec)) {
        fail("" + algorithm + "failed encryption/decryption test");
      }
    }
Пример #2
0
 protected byte[] engineGetIV() {
   return (ivParam != null) ? ivParam.getIV() : null;
 }
Пример #3
0
    public void performTest() throws Exception {
      byte[] salt = new byte[digest.getDigestSize()];
      int iCount = 100;

      digest.doFinal(salt, 0);

      PKCS12ParametersGenerator pGen = new PKCS12ParametersGenerator(digest);

      pGen.init(PBEParametersGenerator.PKCS12PasswordToBytes(password), salt, iCount);

      ParametersWithIV params = (ParametersWithIV) pGen.generateDerivedParameters(keySize, ivSize);

      SecretKeySpec encKey =
          new SecretKeySpec(((KeyParameter) params.getParameters()).getKey(), baseAlgorithm);

      Cipher c;

      if (baseAlgorithm.equals("RC4")) {
        c = Cipher.getInstance(baseAlgorithm, "SC");

        c.init(Cipher.ENCRYPT_MODE, encKey);
      } else {
        c = Cipher.getInstance(baseAlgorithm + "/CBC/PKCS7Padding", "SC");

        c.init(Cipher.ENCRYPT_MODE, encKey, new IvParameterSpec(params.getIV()));
      }

      byte[] enc = c.doFinal(salt);

      c = Cipher.getInstance(algorithm, "SC");

      PBEKeySpec keySpec = new PBEKeySpec(password, salt, iCount);
      SecretKeyFactory fact = SecretKeyFactory.getInstance(algorithm, "SC");

      c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec));

      byte[] dec = c.doFinal(enc);

      if (!Arrays.areEqual(salt, dec)) {
        fail("" + algorithm + "failed encryption/decryption test");
      }

      //
      // get the parameters
      //
      AlgorithmParameters param = checkParameters(c, salt, iCount);

      //
      // try using parameters
      //
      c = Cipher.getInstance(algorithm, "SC");

      keySpec = new PBEKeySpec(password);

      c.init(Cipher.DECRYPT_MODE, fact.generateSecret(keySpec), param);

      checkParameters(c, salt, iCount);

      dec = c.doFinal(enc);

      if (!Arrays.areEqual(salt, dec)) {
        fail("" + algorithm + "failed encryption/decryption test");
      }

      //
      // try using PBESpec
      //
      c = Cipher.getInstance(algorithm, "SC");

      keySpec = new PBEKeySpec(password);

      c.init(
          Cipher.DECRYPT_MODE,
          fact.generateSecret(keySpec),
          param.getParameterSpec(PBEParameterSpec.class));

      checkParameters(c, salt, iCount);

      dec = c.doFinal(enc);

      if (!Arrays.areEqual(salt, dec)) {
        fail("" + algorithm + "failed encryption/decryption test");
      }
    }