cz.d1x.dxcrypto.encryption.crypto

Class SymmetricCryptoEngine

java.lang.Object

cz.d1x.dxcrypto.encryption.crypto.SymmetricCryptoEngine

All Implemented Interfaces:

EncryptionEngine

public class SymmetricCryptoEngine
extends Object
implements EncryptionEngine

Implementation of encryption engine that uses javax.crypto implementations for symmetric encryption.

Author:

Zdenek Obst, zdenek.obst-at-gmail.com

Constructor Summary

Constructors

Constructor and Description
SymmetricCryptoEngine(String cipherName, Key key)

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] input, byte[] initVector) Decrypts given input using given initialization vector (if needed)
byte[]	encrypt(byte[] input, byte[] initVector) Encrypts given input and using given initialization vector (if needed).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SymmetricCryptoEngine

public SymmetricCryptoEngine(String cipherName,
                             Key key)
                      throws EncryptionException

Throws:

EncryptionException

Method Detail

encrypt

public byte[] encrypt(byte[] input,
                      byte[] initVector)
               throws EncryptionException

Description copied from interface: EncryptionEngine

Encrypts given input and using given initialization vector (if needed).

Specified by:

encrypt in interface EncryptionEngine

Parameters:

input - input to be encrypted

initVector - initialization vector for encryption if needed (can be null)

Returns:

encrypted input

Throws:

EncryptionException - exception if encryption fails

decrypt

public byte[] decrypt(byte[] input,
                      byte[] initVector)

Description copied from interface: EncryptionEngine

Decrypts given input using given initialization vector (if needed)

Specified by:

decrypt in interface EncryptionEngine

Parameters:

input - input to be decrypted

initVector - initialization vector for decryption if needed (can be null)

Returns:

decrypted input