Package javax.crypto.spec

Examples of javax.crypto.spec.PBEKeySpec

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

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

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

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

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

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

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

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

            keySpec = new PBEKeySpec(password);

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

            checkParameters(c, salt, iCount);

            dec = c.doFinal(enc);

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

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

            keySpec = new PBEKeySpec(password);

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

            checkParameters(c, salt, iCount);
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            KeySpec keySpec)
            throws InvalidKeySpecException
        {
            if (keySpec instanceof PBEKeySpec)
            {
                PBEKeySpec          pbeSpec = (PBEKeySpec)keySpec;
                CipherParameters    param;
               
                if (pbeSpec.getSalt() == null)
                {
                    return new JCEPBEKey(this.algName, this.algOid, scheme, digest, keySize, ivSize, pbeSpec, null);
                }
               
                if (forCipher)
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            KeySpec keySpec)
        throws InvalidKeySpecException
        {
            if (keySpec instanceof PBEKeySpec)
            {
                PBEKeySpec pbeSpec = (PBEKeySpec)keySpec;
                CipherParameters    param;
               
                if (pbeSpec.getSalt() == null)
                {
                    return new JCEPBEKey(this.algName, this.algOid, scheme, digest, keySize, ivSize, pbeSpec, null);
                }
               
                if (forCipher)
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        int     iterationCount)
        throws IOException
    {
        try
        {
            PBEKeySpec          pbeSpec = new PBEKeySpec(password);
            SecretKeyFactory    keyFact = SecretKeyFactory.getInstance(algorithm, "BC");
            PBEParameterSpec    defParams = new PBEParameterSpec(salt, iterationCount);

            Cipher cipher = Cipher.getInstance(algorithm, "BC");
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        // Create the PBE secret key
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBEwithMD5andDES");

        char[] password = "somearbitrarycrazystringthatdoesnotmatter".toCharArray();
        PBEParameterSpec cipherSpec = new PBEParameterSpec(salt.getBytes(), iterationCount);
        PBEKeySpec keySpec = new PBEKeySpec(password);
        SecretKey cipherKey = factory.generateSecret(keySpec);

        String maskedPass = PBEUtils.encode64(passwd.getBytes(), algo, cipherKey, cipherSpec);

        return new String(PicketBoxSecurityVault.PASS_MASK_PREFIX) + maskedPass;
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   *             invalid encryption key
   */
  private SecretKey generateSecretKey() throws NoSuchAlgorithmException,
    InvalidKeySpecException
  {
    final PBEKeySpec spec = new PBEKeySpec(getKey().toCharArray());
    return SecretKeyFactory.getInstance(CRYPT_METHOD).generateSecret(spec);
  }
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    public AesBytesEncryptor(String password, CharSequence salt) {
        this(password, salt, null);
    }

    public AesBytesEncryptor(String password, CharSequence salt, BytesKeyGenerator ivGenerator) {
        PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray(), Hex.decode(salt), 1024, 256);
        SecretKey secretKey = newSecretKey("PBKDF2WithHmacSHA1", keySpec);
        this.secretKey = new SecretKeySpec(secretKey.getEncoded(), "AES");
        encryptor = newCipher(AES_ALGORITHM);
        decryptor = newCipher(AES_ALGORITHM);
        this.ivGenerator = ivGenerator != null ? ivGenerator : NULL_IV_GENERATOR;
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    /**
     * Generates a SecretKey.
     */
    public static SecretKey newSecretKey(String algorithm, String password) {
        return newSecretKey(algorithm, new PBEKeySpec(password.toCharArray()));
    }
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  /* =============================================================== */
  private void Initialise(String passPhrase) {
    try {
      // Create the key
      KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), this.salt, this.iterationCount);
      SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
      this.ecipher = Cipher.getInstance(key.getAlgorithm());
      this.dcipher = Cipher.getInstance(key.getAlgorithm());
      // Prepare the parameter to the ciphers
      AlgorithmParameterSpec paramSpec = new PBEParameterSpec(this.salt, this.iterationCount);
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        random.nextBytes(salt);
        final PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 5);
       
        final SecretKey pbeKey = SecretKeyFactory.getInstance(
                "PBEWithMD5AndDES").generateSecret(
                new PBEKeySpec(password.toCharArray()));
        final Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
        cipher.init(mode, pbeKey, pbeParamSpec);
        return cipher;
    }
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