Java String XOR Decode XORdecode(String res, String key)

Description

XO Rdecode

License

Open Source License

Declaration

public static String XORdecode(String res, String key) 

Method Source Code

//package com.java2s;

public class Main {
    public static String XORdecode(String res, String key) {
        byte[] bs = parseHexStr2Byte(res);
        for (int i = 0; i < bs.length; i++) {
            bs[i] = (byte) ((bs[i]) ^ key.hashCode());
        }//from   w  w  w . j a va2 s  .  c o  m
        return new String(bs);
    }

    public static byte[] parseHexStr2Byte(String hexStr) {
        if (hexStr.length() < 1)
            return null;
        byte[] result = new byte[hexStr.length() / 2];
        for (int i = 0; i < hexStr.length() / 2; i++) {
            int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
            int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
            result[i] = (byte) (high * 16 + low);
        }
        return result;
    }
}

Related

1. xorDecode(String data, String key)