des Decode CBC - Android java.security

Android examples for java.security:DES

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Description

des Decode CBC

Demo Code


//package com.java2s;
import java.security.Key;

import javax.crypto.Cipher;

import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;

public class Main {

    public static byte[] desDecodeCBC(byte[] key, byte[] keyiv, byte[] data)
            throws Exception {
        Key deskey = null;//from  w w  w  . j av a 2s . c  om
        DESedeKeySpec spec = new DESedeKeySpec(key);
        SecretKeyFactory keyfactory = SecretKeyFactory
                .getInstance("desede");
        deskey = keyfactory.generateSecret(spec);
        Cipher cipher = Cipher.getInstance("desede" + "/CBC/NoPadding");
        IvParameterSpec ips = new IvParameterSpec(keyiv);
        cipher.init(Cipher.DECRYPT_MODE, deskey, ips);
        byte[] bOut = cipher.doFinal(data);
        return bOut;
    }
}

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