Xor Encode a String - Android java.lang

Android examples for java.lang:String Unicode

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Description

Xor Encode a String

Demo Code

/*//from w  w  w .java 2 s .  c  om
 *   Copyright (C)  2016 android@19code.com
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
//package com.java2s;

public class Main {
    public static String XorEncode(String str, String privatekey) {
        int[] snNum = new int[str.length()];
        String result = "";
        String temp = "";
        for (int i = 0, j = 0; i < str.length(); i++, j++) {
            if (j == privatekey.length())
                j = 0;
            snNum[i] = str.charAt(i) ^ privatekey.charAt(j);
        }
        for (int k = 0; k < str.length(); k++) {
            if (snNum[k] < 10) {
                temp = "00" + snNum[k];
            } else {
                if (snNum[k] < 100) {
                    temp = "0" + snNum[k];
                }
            }
            result += temp;
        }
        return result;
    }
}

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