protected Cipher getInitializedCipher(EncryptionMethod encryptionMethod, String password, byte[] salt, boolean encryptMode) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException { if (encryptionMethod == null) { throw new IllegalArgumentException("The encryption method must be specified"); } if (StringUtils.isEmpty(password)) { throw new IllegalArgumentException("Encryption with an empty password is not supported"); } validateSalt(encryptionMethod, salt); String algorithm = encryptionMethod.getAlgorithm(); String provider = encryptionMethod.getProvider(); // Initialize secret key from password final PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray()); final SecretKeyFactory factory = SecretKeyFactory.getInstance(algorithm, provider); SecretKey tempKey = factory.generateSecret(pbeKeySpec); final PBEParameterSpec parameterSpec = new PBEParameterSpec(salt, getIterationCount()); Cipher cipher = Cipher.getInstance(algorithm, provider); cipher.init(encryptMode ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, tempKey, parameterSpec); return cipher; }
protected Cipher getInitializedCipher(EncryptionMethod encryptionMethod, String password, byte[] salt, boolean encryptMode) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException { if (encryptionMethod == null) { throw new IllegalArgumentException("The encryption method must be specified"); } if (StringUtils.isEmpty(password)) { throw new IllegalArgumentException("Encryption with an empty password is not supported"); } validateSalt(encryptionMethod, salt); String algorithm = encryptionMethod.getAlgorithm(); String provider = encryptionMethod.getProvider(); // Initialize secret key from password final PBEKeySpec pbeKeySpec = new PBEKeySpec(password.toCharArray()); final SecretKeyFactory factory = SecretKeyFactory.getInstance(algorithm, provider); SecretKey tempKey = factory.generateSecret(pbeKeySpec); final PBEParameterSpec parameterSpec = new PBEParameterSpec(salt, getIterationCount()); Cipher cipher = Cipher.getInstance(algorithm, provider); cipher.init(encryptMode ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, tempKey, parameterSpec); return cipher; }