package com.gt.utils;
import java.util.ArrayList;
import java.util.List;
public class Des {
public Des() {
}
public static void main(String[] args) {
Des desObj = new Des();
String key1 = "1";
String key2 = "2";
String key3 = "3";
String data = "admin";
String str = desObj.strEnc(data, key1, key2, key3);
System.out.println(str);
String dec = desObj.strDec(str, key1, key2, key3);
System.out.println(dec);
}
/**
* DES加密/解密
*
* @Copyright Copyright (c) 2006
* @author Guapo
* @see DESCore
*/
/*
* encrypt the string to string made up of hex return the encrypted string
*/
public String strEnc(String data, String firstKey, String secondKey,
String thirdKey) {
int leng = data.length();
String encData = "";
List firstKeyBt = null, secondKeyBt = null, thirdKeyBt = null;
int firstLength = 0, secondLength = 0, thirdLength = 0;
if (firstKey != null && firstKey != "") {
firstKeyBt = getKeyBytes(firstKey);
firstLength = firstKeyBt.size();
}
if (secondKey != null && secondKey != "") {
secondKeyBt = getKeyBytes(secondKey);
secondLength = secondKeyBt.size();
}
if (thirdKey != null && thirdKey != "") {
thirdKeyBt = getKeyBytes(thirdKey);
thirdLength = thirdKeyBt.size();
}
if (leng > 0) {
if (leng < 4) {
int[] bt = strToBt(data);
int[] encByte = null;
if (firstKey != null && firstKey != "" && secondKey != null
&& secondKey != "" && thirdKey != null
&& thirdKey != "") {
int[] tempBt;
int x, y, z;
tempBt = bt;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
for (z = 0; z < thirdLength; z++) {
tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
}
encByte = tempBt;
} else {
if (firstKey != null && firstKey != "" && secondKey != null
&& secondKey != "") {
int[] tempBt;
int x, y;
tempBt = bt;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
encByte = tempBt;
} else {
if (firstKey != null && firstKey != "") {
int[] tempBt;
int x = 0;
tempBt = bt;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
encByte = tempBt;
}
}
}
encData = bt64ToHex(encByte);
} else {
int iterator = (leng / 4);
int remainder = leng % 4;
int i = 0;
for (i = 0; i < iterator; i++) {
String tempData = data.substring(i * 4 + 0, i * 4 + 4);
int[] tempByte = strToBt(tempData);
int[] encByte = null;
if (firstKey != null && firstKey != "" && secondKey != null
&& secondKey != "" && thirdKey != null
&& thirdKey != "") {
int[] tempBt;
int x, y, z;
tempBt = tempByte;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
for (z = 0; z < thirdLength; z++) {
tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
}
encByte = tempBt;
} else {
if (firstKey != null && firstKey != ""
&& secondKey != null && secondKey != "") {
int[] tempBt;
int x, y;
tempBt = tempByte;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
encByte = tempBt;
} else {
if (firstKey != null && firstKey != "") {
int[] tempBt;
int x;
tempBt = tempByte;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt
.get(x));
}
encByte = tempBt;
}
}
}
encData += bt64ToHex(encByte);
}
if (remainder > 0) {
String remainderData = data.substring(iterator * 4 + 0,
leng);
int[] tempByte = strToBt(remainderData);
int[] encByte = null;
if (firstKey != null && firstKey != "" && secondKey != null
&& secondKey != "" && thirdKey != null
&& thirdKey != "") {
int[] tempBt;
int x, y, z;
tempBt = tempByte;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
for (z = 0; z < thirdLength; z++) {
tempBt = enc(tempBt, (int[]) thirdKeyBt.get(z));
}
encByte = tempBt;
} else {
if (firstKey != null && firstKey != ""
&& secondKey != null && secondKey != "") {
int[] tempBt;
int x, y;
tempBt = tempByte;
for (x = 0; x < firstLength; x++) {
tempBt = enc(tempBt, (int[]) firstKeyBt.get(x));
}
for (y = 0; y < secondLength; y++) {
tempBt = enc(tempBt, (int[]) secondKeyBt.get(y));
}
encByte = tempBt;
} else {
if (
layui+java ssh快速开发框架系统源码.zip （589个子文件） 
MenuInfServiceImpl.class 22KB CodeGeneratorByMysqlByLayUIServiceImpl.class 20KB Des.class 20KB ByteHandleImpl.class 19KB InsInfServiceImpl.class 15KB RoleInfServiceImpl.class 14KB OperInfServiceImpl.class 14KB PbUtils.class 11KB OperInfController.class 11KB BaseDaoThreadImpl.class 11KB BaseDaoImpl.class 10KB SysFunctionInfServiceImpl.class 10KB DictCdServiceImpl.class 10KB FileHandle.class 9KB BaseController.class 9KB ExportExcelController.class 9KB MD5.class 8KB MenuInfController.class 8KB QuarzServiceImpl.class 7KB BaseServiceImpl.class 7KB SysLogServiceImpl.class 6KB NoInterceptorServiceImpl.class 6KB RoleInfController.class 6KB TSysInsInf.class 6KB DictTpServiceImpl.class 6KB AuthInterceptor.class 6KB StudentServiceImpl.class 6KB TSysOperInf.class 5KB InsInfController.class 5KB GetFileName.class 5KB MapToBeanUtils.class 5KB DictCdController.class 5KB RoleFunctionServiceImpl.class 4KB MapToBeanUtils2.class 4KB QuarzController.class 4KB SysFunctionInfController.class 4KB OperInf.class 4KB TSysRoleInf.class 4KB StudentController.class 4KB TSysMenuInf.class 4KB SessionInterceptor.class 4KB RandomValidateCode.class 4KB MyBeanUtils.class 4KB DictTpController.class 4KB FileUploadController.class 4KB QuarzUtils.class 4KB NoInterceptorController.class 4KB InsInf.class 4KB Timer.class 4KB UserInfo.class 4KB FileMD5.class 4KB TemplateParams.class 3KB Student.class 3KB ReadFile.class 3KB TSysLog.class 3KB TSysFunctionInf.class 3KB MenuInf.class 3KB CodeGeneratorController.class 3KB TemplateHelp.class 3KB QuartzInItServlet.class 3KB ButtonCreateController.class 3KB Quarz.class 3KB PropertiesUtils.class 3KB SysCacheProcessImpl.class 3KB RoleFunctionController.class 3KB SysLog.class 3KB IBaseService.class 2KB IBaseDao.class 2KB DictCacheProcessImpl.class 2KB DataConverter.class 2KB TSysDictTp.class 2KB BaseQuartz.class 2KB RoleOperServiceImpl.class 2KB TSysDictCd.class 2KB MenutCacheProcessImpl.class 2KB MenuForLayUI.class 2KB TreeForLayUI.class 2KB TSysRoleOper.class 2KB TSysRoleFunction.class 2KB RoleInf.class 2KB ParseProperties.class 2KB TSysNointerceptor.class 2KB CacheInterceptor.class 2KB DictCd.class 2KB ImageServlet.class 2KB IMenuInfService.class 2KB EncodingInterceptor.class 2KB CharUtils.class 1KB Contans.class 1KB TableFields.class 1KB DatagridForLayUI.class 1KB SysFunctionInf.class 1KB GetIpUtil.class 1KB SysLogController.class 1KB ZTree.class 1KB BasePageForLayUI.class 1KB Json.class 1KB Function.class 1KB IRoleInfService.class 1KB ISysFunctionInfService.class 1KB共 589 条
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