package com.qxueyou.scc.base.util;
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import java.util.ArrayList;
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import java.util.List;
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public class DESUtils {
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public DESUtils() {
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}
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/**
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* DES¼ÓÃÜ/½âÃÜ
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*
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* @Copyright Copyright (c) 2006
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* @author Guapo
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* @see DESCore
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*/
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/*
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* encrypt the string to string made up of hex return the encrypted string
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*/
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@SuppressWarnings("rawtypes")
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public static String strEnc(String data, String firstKey, String secondKey,
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String thirdKey) {
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int leng = data.length();
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String encData = "";
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List firstKeyBt = null, secondKeyBt = null, thirdKeyBt = null;
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int firstLength = 0, secondLength = 0, thirdLength = 0;
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if (firstKey != null && firstKey != "") {
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.size();
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}
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if (secondKey != null && secondKey != "") {
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.size();
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}
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if (thirdKey != null && thirdKey != "") {
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.size();
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}
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if (leng > 0) {
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if (leng < 4) {
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int[] bt = strToBt(data);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "") {
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int[] tempBt;
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int x, y, z;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "") {
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int[] tempBt;
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int x, y;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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int[] tempBt;
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int x = 0;
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tempBt = bt;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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encByte = tempBt;
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}
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}
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}
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encData = bt64ToHex(encByte);
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} else {
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int iterator = (leng / 4);
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int remainder = leng % 4;
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int i = 0;
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for (i = 0; i < iterator; i++) {
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String tempData = data.substring(i * 4 + 0, i * 4 + 4);
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int[] tempByte = strToBt(tempData);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "") {
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int[] tempBt;
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int x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != ""
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&& secondKey != null && secondKey != "") {
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int[] tempBt;
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int x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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int[] tempBt;
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int x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt
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.get(x));
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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if (remainder > 0) {
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String remainderData = data.substring(iterator * 4 + 0,
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leng);
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int[] tempByte = strToBt(remainderData);
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int[] encByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null
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&& thirdKey != "") {
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int[] tempBt;
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int x, y, z;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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for (z = 0; z < thirdLength; z++) {
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tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != ""
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&& secondKey != null && secondKey != "") {
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int[] tempBt;
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int x, y;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
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}
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for (y = 0; y < secondLength; y++) {
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tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
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}
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encByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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int[] tempBt;
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int x;
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tempBt = tempByte;
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for (x = 0; x < firstLength; x++) {
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tempBt = enc(tempBt, (int[]) firstKeyBt
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.get(x));
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}
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encByte = tempBt;
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}
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}
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}
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encData += bt64ToHex(encByte);
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}
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}
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}
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return encData;
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}
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/*
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* decrypt the encrypted string to the original string
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*
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* return the original string
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*/
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@SuppressWarnings("rawtypes")
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public static String strDec(String data, String firstKey, String secondKey,
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String thirdKey) {
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int leng = data.length();
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String decStr = "";
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List firstKeyBt = null, secondKeyBt = null, thirdKeyBt = null;
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int firstLength = 0, secondLength = 0, thirdLength = 0;
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if (firstKey != null && firstKey != "") {
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firstKeyBt = getKeyBytes(firstKey);
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firstLength = firstKeyBt.size();
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}
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if (secondKey != null && secondKey != "") {
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secondKeyBt = getKeyBytes(secondKey);
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secondLength = secondKeyBt.size();
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}
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if (thirdKey != null && thirdKey != "") {
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thirdKeyBt = getKeyBytes(thirdKey);
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thirdLength = thirdKeyBt.size();
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}
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int iterator = leng / 16;
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int i = 0;
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for (i = 0; i < iterator; i++) {
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String tempData = data.substring(i * 16 + 0, i * 16 + 16);
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String strByte = hexToBt64(tempData);
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int[] intByte = new int[64];
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int j = 0;
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for (j = 0; j < 64; j++) {
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intByte[j] = Integer.parseInt(strByte.substring(j, j + 1));
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}
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int[] decByte = null;
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "" && thirdKey != null && thirdKey != "") {
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int[] tempBt;
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int x, y, z;
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tempBt = intByte;
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for (x = thirdLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, (int[]) thirdKeyBt.get(x));
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}
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for (y = secondLength - 1; y >= 0; y--) {
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tempBt = dec(tempBt, (int[]) secondKeyBt.get(y));
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}
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for (z = firstLength - 1; z >= 0; z--) {
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tempBt = dec(tempBt, (int[]) firstKeyBt.get(z));
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}
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decByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "" && secondKey != null
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&& secondKey != "") {
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int[] tempBt;
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int x, y;
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tempBt = intByte;
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for (x = secondLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, (int[]) secondKeyBt.get(x));
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}
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for (y = firstLength - 1; y >= 0; y--) {
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tempBt = dec(tempBt, (int[]) firstKeyBt.get(y));
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}
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decByte = tempBt;
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} else {
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if (firstKey != null && firstKey != "") {
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int[] tempBt;
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int x;
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tempBt = intByte;
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for (x = firstLength - 1; x >= 0; x--) {
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tempBt = dec(tempBt, (int[]) firstKeyBt.get(x));
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}
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decByte = tempBt;
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}
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}
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}
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decStr += byteToString(decByte);
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}
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return decStr;
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}
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/*
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* decrypt the encrypted string to the original string
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*
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* return the original string
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*/
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public static String strDec(String data, String key) {
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return strDec(data,key,null,null);
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}
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/*
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* chang the string into the bit array
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*
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* return bit array(it's length % 64 = 0)
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*/
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@SuppressWarnings({ "rawtypes", "unchecked" })
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private static List getKeyBytes(String key) {
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List keyBytes = new ArrayList();
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int leng = key.length();
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int iterator = (leng / 4);
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int remainder = leng % 4;
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int i = 0;
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for (i = 0; i < iterator; i++) {
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keyBytes.add(i, strToBt(key.substring(i * 4 + 0, i * 4 + 4)));
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}
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if (remainder > 0) {
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// keyBytes[i] = strToBt(key.substring(i*4+0,leng));
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keyBytes.add(i, strToBt(key.substring(i * 4 + 0, leng)));
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}
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return keyBytes;
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}
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/*
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* chang the string(it's length <= 4) into the bit array
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*
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* return bit array(it's length = 64)
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*/
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private static int[] strToBt(String str) {
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int leng = str.length();
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int[] bt = new int[64];
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if (leng < 4) {
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int i = 0, j = 0, p = 0, q = 0;
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for (i = 0; i < leng; i++) {
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int k = str.charAt(i);
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for (j = 0; j < 16; j++) {
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int pow = 1, m = 0;
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for (m = 15; m > j; m--) {
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pow *= 2;
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}
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// bt.set(16*i+j,""+(k/pow)%2));
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bt[16 * i + j] = (k / pow) % 2;
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}
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}
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for (p = leng; p < 4; p++) {
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int k = 0;
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for (q = 0; q < 16; q++) {
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int pow = 1, m = 0;
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for (m = 15; m > q; m--) {
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pow *= 2;
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}
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// bt[16*p+q]=parseInt(k/pow)%2;
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// bt.add(16*p+q,""+((k/pow)%2));
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bt[16 * p + q] = (k / pow) % 2;
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}
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}
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} else {
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for (int i = 0; i < 4; i++) {
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int k = str.charAt(i);
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for (int j = 0; j < 16; j++) {
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int pow = 1;
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for (int m = 15; m > j; m--) {
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pow *= 2;
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}
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// bt[16*i+j]=parseInt(k/pow)%2;
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// bt.add(16*i+j,""+((k/pow)%2));
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bt[16 * i + j] = (k / pow) % 2;
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}
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}
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}
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return bt;
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}
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/*
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* chang the bit(it's length = 4) into the hex
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*
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* return hex
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*/
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public static String bt4ToHex(String binary) {
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String hex = "";
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if (binary.equalsIgnoreCase("0000")) {
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hex = "0";
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} else if (binary.equalsIgnoreCase("0001")) {
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hex = "1";
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} else if (binary.equalsIgnoreCase("0010")) {
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hex = "2";
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} else if (binary.equalsIgnoreCase("0011")) {
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hex = "3";
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} else if (binary.equalsIgnoreCase("0100")) {
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hex = "4";
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} else if (binary.equalsIgnoreCase("0101")) {
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hex = "5";
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} else if (binary.equalsIgnoreCase("0110")) {
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hex = "6";
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} else if (binary.equalsIgnoreCase("0111")) {
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hex = "7";
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} else if (binary.equalsIgnoreCase("1000")) {
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hex = "8";
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} else if (binary.equalsIgnoreCase("1001")) {
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hex = "9";
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} else if (binary.equalsIgnoreCase("1010")) {
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hex = "A";
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} else if (binary.equalsIgnoreCase("1011")) {
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hex = "B";
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} else if (binary.equalsIgnoreCase("1100")) {
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hex = "C";
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} else if (binary.equalsIgnoreCase("1101")) {
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hex = "D";
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} else if (binary.equalsIgnoreCase("1110")) {
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hex = "E";
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} else if (binary.equalsIgnoreCase("1111")) {
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hex = "F";
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}
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return hex;
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}
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/*
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* chang the hex into the bit(it's length = 4)
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*
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* return the bit(it's length = 4)
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*/
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private static String hexToBt4(String hex) {
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String binary = "";
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if (hex.equalsIgnoreCase("0")) {
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binary = "0000";
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} else if (hex.equalsIgnoreCase("1")) {
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binary = "0001";
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}
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if (hex.equalsIgnoreCase("2")) {
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binary = "0010";
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}
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if (hex.equalsIgnoreCase("3")) {
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binary = "0011";
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}
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if (hex.equalsIgnoreCase("4")) {
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binary = "0100";
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}
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if (hex.equalsIgnoreCase("5")) {
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binary = "0101";
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}
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if (hex.equalsIgnoreCase("6")) {
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binary = "0110";
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}
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if (hex.equalsIgnoreCase("7")) {
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binary = "0111";
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}
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if (hex.equalsIgnoreCase("8")) {
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binary = "1000";
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}
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if (hex.equalsIgnoreCase("9")) {
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binary = "1001";
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}
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if (hex.equalsIgnoreCase("A")) {
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binary = "1010";
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}
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if (hex.equalsIgnoreCase("B")) {
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binary = "1011";
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}
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if (hex.equalsIgnoreCase("C")) {
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binary = "1100";
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}
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if (hex.equalsIgnoreCase("D")) {
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binary = "1101";
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}
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if (hex.equalsIgnoreCase("E")) {
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binary = "1110";
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}
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if (hex.equalsIgnoreCase("F")) {
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binary = "1111";
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}
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return binary;
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}
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/*
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* chang the bit(it's length = 64) into the string
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*
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* return string
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*/
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private static String byteToString(int[] byteData) {
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String str = "";
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for (int i = 0; i < 4; i++) {
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int count = 0;
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for (int j = 0; j < 16; j++) {
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int pow = 1;
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for (int m = 15; m > j; m--) {
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pow *= 2;
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}
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count += byteData[16 * i + j] * pow;
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}
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if (count != 0) {
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str += "" + (char) (count);
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}
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}
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return str;
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}
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public static String bt64ToHex(int[] byteData) {
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String hex = "";
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for (int i = 0; i < 16; i++) {
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String bt = "";
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for (int j = 0; j < 4; j++) {
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bt += byteData[i * 4 + j];
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}
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hex += bt4ToHex(bt);
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}
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return hex;
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}
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private static String hexToBt64(String hex) {
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String binary = "";
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for (int i = 0; i < 16; i++) {
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binary += hexToBt4(hex.substring(i, i + 1));
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}
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return binary;
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}
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/*
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* the 64 bit des core arithmetic
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*/
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public static int[] enc(int[] dataByte, int[] keyByte) {
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int[][] keys = generateKeys(keyByte);
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int[] ipByte = initPermute(dataByte);
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int[] ipLeft = new int[32];
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int[] ipRight = new int[32];
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int[] tempLeft = new int[32];
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int i = 0, j = 0, k = 0, m = 0, n = 0;
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for (k = 0; k < 32; k++) {
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ipLeft[k] = ipByte[k];
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ipRight[k] = ipByte[32 + k];
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}
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for (i = 0; i < 16; i++) {
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for (j = 0; j < 32; j++) {
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tempLeft[j] = ipLeft[j];
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ipLeft[j] = ipRight[j];
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}
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int[] key = new int[48];
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for (m = 0; m < 48; m++) {
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key[m] = keys[i][m];
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}
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int[] tempRight = xor(pPermute(sBoxPermute(xor(
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expandPermute(ipRight), key))), tempLeft);
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for (n = 0; n < 32; n++) {
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ipRight[n] = tempRight[n];
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}
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}
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int[] finalData = new int[64];
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for (i = 0; i < 32; i++) {
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finalData[i] = ipRight[i];
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finalData[32 + i] = ipLeft[i];
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}
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return finallyPermute(finalData);
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}
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private static int[] dec(int[] dataByte, int[] keyByte) {
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int[][] keys = generateKeys(keyByte);
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int[] ipByte = initPermute(dataByte);
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int[] ipLeft = new int[32];
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int[] ipRight = new int[32];
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int[] tempLeft = new int[32];
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int i = 0, j = 0, k = 0, m = 0, n = 0;
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for (k = 0; k < 32; k++) {
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ipLeft[k] = ipByte[k];
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ipRight[k] = ipByte[32 + k];
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}
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for (i = 15; i >= 0; i--) {
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for (j = 0; j < 32; j++) {
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tempLeft[j] = ipLeft[j];
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ipLeft[j] = ipRight[j];
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}
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int[] key = new int[48];
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for (m = 0; m < 48; m++) {
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key[m] = keys[i][m];
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}
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int[] tempRight = xor(pPermute(sBoxPermute(xor(
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expandPermute(ipRight), key))), tempLeft);
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for (n = 0; n < 32; n++) {
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ipRight[n] = tempRight[n];
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}
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}
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int[] finalData = new int[64];
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for (i = 0; i < 32; i++) {
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finalData[i] = ipRight[i];
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finalData[32 + i] = ipLeft[i];
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}
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return finallyPermute(finalData);
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}
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private static int[] initPermute(int[] originalData) {
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int[] ipByte = new int[64];
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int i = 0, m = 1, n = 0, j, k;
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for (i = 0, m = 1, n = 0; i < 4; i++, m += 2, n += 2) {
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for (j = 7, k = 0; j >= 0; j--, k++) {
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ipByte[i * 8 + k] = originalData[j * 8 + m];
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ipByte[i * 8 + k + 32] = originalData[j * 8 + n];
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}
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}
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return ipByte;
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}
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private static int[] expandPermute(int[] rightData) {
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int[] epByte = new int[48];
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int i;
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for (i = 0; i < 8; i++) {
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if (i == 0) {
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epByte[i * 6 + 0] = rightData[31];
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} else {
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epByte[i * 6 + 0] = rightData[i * 4 - 1];
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}
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epByte[i * 6 + 1] = rightData[i * 4 + 0];
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epByte[i * 6 + 2] = rightData[i * 4 + 1];
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epByte[i * 6 + 3] = rightData[i * 4 + 2];
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epByte[i * 6 + 4] = rightData[i * 4 + 3];
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if (i == 7) {
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epByte[i * 6 + 5] = rightData[0];
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} else {
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epByte[i * 6 + 5] = rightData[i * 4 + 4];
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}
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}
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return epByte;
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}
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private static int[] xor(int[] byteOne, int[] byteTwo) {
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// var xorByte = new Array(byteOne.length);
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// for(int i = 0;i < byteOne.length; i ++){
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// xorByte[i] = byteOne[i] ^ byteTwo[i];
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// }
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// return xorByte;
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int[] xorByte = new int[byteOne.length];
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for (int i = 0; i < byteOne.length; i++) {
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xorByte[i] = byteOne[i] ^ byteTwo[i];
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}
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return xorByte;
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}
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private static int[] sBoxPermute(int[] expandByte) {
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|
// var sBoxByte = new Array(32);
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int[] sBoxByte = new int[32];
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String binary = "";
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int[][] s1 = {
|
{ 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 },
|
{ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8 },
|
{ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0 },
|
{ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13 } };
|
|
/* Table - s2 */
|
int[][] s2 = {
|
{ 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10 },
|
{ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5 },
|
{ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15 },
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{ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9 } };
|
|
/* Table - s3 */
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int[][] s3 = {
|
{ 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8 },
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{ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1 },
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{ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7 },
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{ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12 } };
|
/* Table - s4 */
|
int[][] s4 = {
|
{ 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15 },
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{ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9 },
|
{ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4 },
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{ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14 } };
|
|
/* Table - s5 */
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int[][] s5 = {
|
{ 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9 },
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{ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6 },
|
{ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14 },
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{ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3 } };
|
|
/* Table - s6 */
|
int[][] s6 = {
|
{ 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11 },
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{ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8 },
|
{ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6 },
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{ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13 } };
|
|
/* Table - s7 */
|
int[][] s7 = {
|
{ 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1 },
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{ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6 },
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{ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2 },
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{ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12 } };
|
|
/* Table - s8 */
|
int[][] s8 = {
|
{ 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7 },
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{ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2 },
|
{ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8 },
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{ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11 } };
|
|
for (int m = 0; m < 8; m++) {
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int i = 0, j = 0;
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i = expandByte[m * 6 + 0] * 2 + expandByte[m * 6 + 5];
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j = expandByte[m * 6 + 1] * 2 * 2 * 2 + expandByte[m * 6 + 2] * 2
|
* 2 + expandByte[m * 6 + 3] * 2 + expandByte[m * 6 + 4];
|
switch (m) {
|
case 0:
|
binary = getBoxBinary(s1[i][j]);
|
break;
|
case 1:
|
binary = getBoxBinary(s2[i][j]);
|
break;
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case 2:
|
binary = getBoxBinary(s3[i][j]);
|
break;
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case 3:
|
binary = getBoxBinary(s4[i][j]);
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break;
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case 4:
|
binary = getBoxBinary(s5[i][j]);
|
break;
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case 5:
|
binary = getBoxBinary(s6[i][j]);
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break;
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case 6:
|
binary = getBoxBinary(s7[i][j]);
|
break;
|
case 7:
|
binary = getBoxBinary(s8[i][j]);
|
break;
|
}
|
sBoxByte[m * 4 + 0] = Integer.parseInt(binary.substring(0, 1));
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sBoxByte[m * 4 + 1] = Integer.parseInt(binary.substring(1, 2));
|
sBoxByte[m * 4 + 2] = Integer.parseInt(binary.substring(2, 3));
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sBoxByte[m * 4 + 3] = Integer.parseInt(binary.substring(3, 4));
|
}
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return sBoxByte;
|
}
|
|
private static int[] pPermute(int[] sBoxByte) {
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int[] pBoxPermute = new int[32];
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pBoxPermute[0] = sBoxByte[15];
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pBoxPermute[1] = sBoxByte[6];
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pBoxPermute[2] = sBoxByte[19];
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pBoxPermute[3] = sBoxByte[20];
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pBoxPermute[4] = sBoxByte[28];
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pBoxPermute[5] = sBoxByte[11];
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pBoxPermute[6] = sBoxByte[27];
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pBoxPermute[7] = sBoxByte[16];
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pBoxPermute[8] = sBoxByte[0];
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pBoxPermute[9] = sBoxByte[14];
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pBoxPermute[10] = sBoxByte[22];
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pBoxPermute[11] = sBoxByte[25];
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pBoxPermute[12] = sBoxByte[4];
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pBoxPermute[13] = sBoxByte[17];
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pBoxPermute[14] = sBoxByte[30];
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pBoxPermute[15] = sBoxByte[9];
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pBoxPermute[16] = sBoxByte[1];
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pBoxPermute[17] = sBoxByte[7];
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pBoxPermute[18] = sBoxByte[23];
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pBoxPermute[19] = sBoxByte[13];
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pBoxPermute[20] = sBoxByte[31];
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pBoxPermute[21] = sBoxByte[26];
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pBoxPermute[22] = sBoxByte[2];
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pBoxPermute[23] = sBoxByte[8];
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pBoxPermute[24] = sBoxByte[18];
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pBoxPermute[25] = sBoxByte[12];
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pBoxPermute[26] = sBoxByte[29];
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pBoxPermute[27] = sBoxByte[5];
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pBoxPermute[28] = sBoxByte[21];
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pBoxPermute[29] = sBoxByte[10];
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pBoxPermute[30] = sBoxByte[3];
|
pBoxPermute[31] = sBoxByte[24];
|
return pBoxPermute;
|
}
|
|
private static int[] finallyPermute(int[] endByte) {
|
int[] fpByte = new int[64];
|
fpByte[0] = endByte[39];
|
fpByte[1] = endByte[7];
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fpByte[2] = endByte[47];
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fpByte[3] = endByte[15];
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fpByte[4] = endByte[55];
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fpByte[5] = endByte[23];
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fpByte[6] = endByte[63];
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fpByte[7] = endByte[31];
|
fpByte[8] = endByte[38];
|
fpByte[9] = endByte[6];
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fpByte[10] = endByte[46];
|
fpByte[11] = endByte[14];
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fpByte[12] = endByte[54];
|
fpByte[13] = endByte[22];
|
fpByte[14] = endByte[62];
|
fpByte[15] = endByte[30];
|
fpByte[16] = endByte[37];
|
fpByte[17] = endByte[5];
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fpByte[18] = endByte[45];
|
fpByte[19] = endByte[13];
|
fpByte[20] = endByte[53];
|
fpByte[21] = endByte[21];
|
fpByte[22] = endByte[61];
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fpByte[23] = endByte[29];
|
fpByte[24] = endByte[36];
|
fpByte[25] = endByte[4];
|
fpByte[26] = endByte[44];
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fpByte[27] = endByte[12];
|
fpByte[28] = endByte[52];
|
fpByte[29] = endByte[20];
|
fpByte[30] = endByte[60];
|
fpByte[31] = endByte[28];
|
fpByte[32] = endByte[35];
|
fpByte[33] = endByte[3];
|
fpByte[34] = endByte[43];
|
fpByte[35] = endByte[11];
|
fpByte[36] = endByte[51];
|
fpByte[37] = endByte[19];
|
fpByte[38] = endByte[59];
|
fpByte[39] = endByte[27];
|
fpByte[40] = endByte[34];
|
fpByte[41] = endByte[2];
|
fpByte[42] = endByte[42];
|
fpByte[43] = endByte[10];
|
fpByte[44] = endByte[50];
|
fpByte[45] = endByte[18];
|
fpByte[46] = endByte[58];
|
fpByte[47] = endByte[26];
|
fpByte[48] = endByte[33];
|
fpByte[49] = endByte[1];
|
fpByte[50] = endByte[41];
|
fpByte[51] = endByte[9];
|
fpByte[52] = endByte[49];
|
fpByte[53] = endByte[17];
|
fpByte[54] = endByte[57];
|
fpByte[55] = endByte[25];
|
fpByte[56] = endByte[32];
|
fpByte[57] = endByte[0];
|
fpByte[58] = endByte[40];
|
fpByte[59] = endByte[8];
|
fpByte[60] = endByte[48];
|
fpByte[61] = endByte[16];
|
fpByte[62] = endByte[56];
|
fpByte[63] = endByte[24];
|
return fpByte;
|
}
|
|
private static String getBoxBinary(int i) {
|
String binary = "";
|
switch (i) {
|
case 0:
|
binary = "0000";
|
break;
|
case 1:
|
binary = "0001";
|
break;
|
case 2:
|
binary = "0010";
|
break;
|
case 3:
|
binary = "0011";
|
break;
|
case 4:
|
binary = "0100";
|
break;
|
case 5:
|
binary = "0101";
|
break;
|
case 6:
|
binary = "0110";
|
break;
|
case 7:
|
binary = "0111";
|
break;
|
case 8:
|
binary = "1000";
|
break;
|
case 9:
|
binary = "1001";
|
break;
|
case 10:
|
binary = "1010";
|
break;
|
case 11:
|
binary = "1011";
|
break;
|
case 12:
|
binary = "1100";
|
break;
|
case 13:
|
binary = "1101";
|
break;
|
case 14:
|
binary = "1110";
|
break;
|
case 15:
|
binary = "1111";
|
break;
|
}
|
return binary;
|
}
|
|
/*
|
* generate 16 keys for xor
|
*
|
*/
|
private static int[][] generateKeys(int[] keyByte) {
|
int[] key = new int[56];
|
int[][] keys = new int[16][48];
|
|
// keys[ 0] = new Array();
|
// keys[ 1] = new Array();
|
// keys[ 2] = new Array();
|
// keys[ 3] = new Array();
|
// keys[ 4] = new Array();
|
// keys[ 5] = new Array();
|
// keys[ 6] = new Array();
|
// keys[ 7] = new Array();
|
// keys[ 8] = new Array();
|
// keys[ 9] = new Array();
|
// keys[10] = new Array();
|
// keys[11] = new Array();
|
// keys[12] = new Array();
|
// keys[13] = new Array();
|
// keys[14] = new Array();
|
// keys[15] = new Array();
|
int[] loop = new int[] { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 };
|
|
for (int i = 0; i < 7; i++) {
|
for (int j = 0, k = 7; j < 8; j++, k--) {
|
key[i * 8 + j] = keyByte[8 * k + i];
|
}
|
}
|
|
int i = 0;
|
for (i = 0; i < 16; i++) {
|
int tempLeft = 0;
|
int tempRight = 0;
|
for (int j = 0; j < loop[i]; j++) {
|
tempLeft = key[0];
|
tempRight = key[28];
|
for (int k = 0; k < 27; k++) {
|
key[k] = key[k + 1];
|
key[28 + k] = key[29 + k];
|
}
|
key[27] = tempLeft;
|
key[55] = tempRight;
|
}
|
// var tempKey = new Array(48);
|
int[] tempKey = new int[48];
|
tempKey[0] = key[13];
|
tempKey[1] = key[16];
|
tempKey[2] = key[10];
|
tempKey[3] = key[23];
|
tempKey[4] = key[0];
|
tempKey[5] = key[4];
|
tempKey[6] = key[2];
|
tempKey[7] = key[27];
|
tempKey[8] = key[14];
|
tempKey[9] = key[5];
|
tempKey[10] = key[20];
|
tempKey[11] = key[9];
|
tempKey[12] = key[22];
|
tempKey[13] = key[18];
|
tempKey[14] = key[11];
|
tempKey[15] = key[3];
|
tempKey[16] = key[25];
|
tempKey[17] = key[7];
|
tempKey[18] = key[15];
|
tempKey[19] = key[6];
|
tempKey[20] = key[26];
|
tempKey[21] = key[19];
|
tempKey[22] = key[12];
|
tempKey[23] = key[1];
|
tempKey[24] = key[40];
|
tempKey[25] = key[51];
|
tempKey[26] = key[30];
|
tempKey[27] = key[36];
|
tempKey[28] = key[46];
|
tempKey[29] = key[54];
|
tempKey[30] = key[29];
|
tempKey[31] = key[39];
|
tempKey[32] = key[50];
|
tempKey[33] = key[44];
|
tempKey[34] = key[32];
|
tempKey[35] = key[47];
|
tempKey[36] = key[43];
|
tempKey[37] = key[48];
|
tempKey[38] = key[38];
|
tempKey[39] = key[55];
|
tempKey[40] = key[33];
|
tempKey[41] = key[52];
|
tempKey[42] = key[45];
|
tempKey[43] = key[41];
|
tempKey[44] = key[49];
|
tempKey[45] = key[35];
|
tempKey[46] = key[28];
|
tempKey[47] = key[31];
|
int m;
|
switch (i) {
|
case 0:
|
for (m = 0; m < 48; m++) {
|
keys[0][m] = tempKey[m];
|
}
|
break;
|
case 1:
|
for (m = 0; m < 48; m++) {
|
keys[1][m] = tempKey[m];
|
}
|
break;
|
case 2:
|
for (m = 0; m < 48; m++) {
|
keys[2][m] = tempKey[m];
|
}
|
break;
|
case 3:
|
for (m = 0; m < 48; m++) {
|
keys[3][m] = tempKey[m];
|
}
|
break;
|
case 4:
|
for (m = 0; m < 48; m++) {
|
keys[4][m] = tempKey[m];
|
}
|
break;
|
case 5:
|
for (m = 0; m < 48; m++) {
|
keys[5][m] = tempKey[m];
|
}
|
break;
|
case 6:
|
for (m = 0; m < 48; m++) {
|
keys[6][m] = tempKey[m];
|
}
|
break;
|
case 7:
|
for (m = 0; m < 48; m++) {
|
keys[7][m] = tempKey[m];
|
}
|
break;
|
case 8:
|
for (m = 0; m < 48; m++) {
|
keys[8][m] = tempKey[m];
|
}
|
break;
|
case 9:
|
for (m = 0; m < 48; m++) {
|
keys[9][m] = tempKey[m];
|
}
|
break;
|
case 10:
|
for (m = 0; m < 48; m++) {
|
keys[10][m] = tempKey[m];
|
}
|
break;
|
case 11:
|
for (m = 0; m < 48; m++) {
|
keys[11][m] = tempKey[m];
|
}
|
break;
|
case 12:
|
for (m = 0; m < 48; m++) {
|
keys[12][m] = tempKey[m];
|
}
|
break;
|
case 13:
|
for (m = 0; m < 48; m++) {
|
keys[13][m] = tempKey[m];
|
}
|
break;
|
case 14:
|
for (m = 0; m < 48; m++) {
|
keys[14][m] = tempKey[m];
|
}
|
break;
|
case 15:
|
for (m = 0; m < 48; m++) {
|
keys[15][m] = tempKey[m];
|
}
|
break;
|
}
|
}
|
return keys;
|
}
|
}
|
