DESEncrypt.java

package org.beanfuse.security.codec;

import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;

public class DESEncrypt {

	public DESEncrypt(byte desKey[]) {
		this.desKey = desKey;
	}

	public byte[] doEncrypt(byte plainText[]) throws Exception {
		SecureRandom sr = new SecureRandom();
		byte rawKeyData[] = desKey;
		DESKeySpec dks = new DESKeySpec(rawKeyData);
		SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
		javax.crypto.SecretKey key = keyFactory.generateSecret(dks);
		Cipher cipher = Cipher.getInstance("DES");
		cipher.init(1, key, sr);
		byte data[] = plainText;
		byte encryptedData[] = cipher.doFinal(data);
		return encryptedData;
	}

	private byte desKey[];
}