php实现和c#一致的DES加密解密实例

PHP实现和c#一致的DES加密解密，可以从网上搜到一大堆，但是测试后发现都没法用。以下正

PHP实现和c#一致的DES加密解密，可以从网上搜到一大堆，但是测试后发现都没法用。以下正确代码是我经过苦苦才找到的。希望大家在系统整合时能用的上。

注意：key的长度为8位以内。

//C# 版DES 加解密算法 
using System; 
using System.Data; 
using System.Configuration; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 
using System.Data.SqlClient; 
using System.Security.Cryptography; 
using System.IO; 
using System.Text; 
public class Des{ 
 //加解密密钥 
 private static string skey = "12345678"; 
 //初始化向量 
 private static byte[] DESIV = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; 
 
 #region DESEnCode DES加密 
 public static string DESEnCode(string pToEncrypt, string sKey) 
 { 
 pToEncrypt = HttpContext.Current.Server.UrlEncode(pToEncrypt); 
 DESCryptoServiceProvider des = new DESCryptoServiceProvider(); 
 byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt); 
 
 //建立加密对象的密钥和偏移量 
 //原文使用ASCIIEncoding.ASCII方法的GetBytes方法 
 //使得输入密码必须输入英文文本 
 des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); 
 des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); 
 MemoryStream ms = new MemoryStream(); 
 CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); 
 
 cs.Write(inputByteArray, 0, inputByteArray.Length); 
 cs.FlushFinalBlock(); 
 
 StringBuilder ret = new StringBuilder(); 
 foreach (byte b in ms.ToArray()) 
 { 
 ret.AppendFormat("{0:X2}", b); 
 } 
 ret.ToString(); 
 return ret.ToString(); 
 } 
 #endregion 
 /// <summary> 
 /// 
 /// </summary> 
 /// <param name="pToDecrypt"> 待解密的字符串</param> 
 /// <param name="sKey"> 解密密钥,要求为8字节,和加密密钥相同</param> 
 /// <returns>解密成功返回解密后的字符串，失败返源串</returns> 
 #region DESDeCode DES解密 
 public static string DESDeCode(string pToDecrypt, string sKey) 
 { 
 // HttpContext.Current.Response.Write(pToDecrypt + "<br>" + sKey); 
 // HttpContext.Current.Response.End(); 
 DESCryptoServiceProvider des = new DESCryptoServiceProvider(); 
 
 byte[] inputByteArray = new byte[pToDecrypt.Length / 2]; 
 for (int x = 0; x < pToDecrypt.Length / 2; x++) 
 { 
 int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16)); 
 inputByteArray[x] = (byte)i; 
 } 
 
 des.Key = ASCIIEncoding.ASCII.GetBytes(sKey); 
 des.IV = ASCIIEncoding.ASCII.GetBytes(sKey); 
 MemoryStream ms = new MemoryStream(); 
 CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); 
 cs.Write(inputByteArray, 0, inputByteArray.Length); 
 cs.FlushFinalBlock(); 
 
 StringBuilder ret = new StringBuilder(); 
 
 return HttpContext.Current.Server.UrlDecode(System.Text.Encoding.Default.GetString(ms.ToArray())); 
 } 
 #endregion 
} 

<?php 
class DES 
{ 
 var $key; 
 var $iv; //偏移量 
 
 function DES( $key, $iv=0 ) { 
 //key长度8例如:1234abcd 
 $this->key = $key; 
 if( $iv == 0 ) { 
 $this->iv = $key; //默认以$key 作为 iv 
 } else { 
 $this->iv = $iv; //mcrypt_create_iv ( mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM ); 
 } 
 } 
 
 function encrypt($str) { 
 //加密，返回大写十六进制字符串 
 $size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC ); 
 $str = $this->pkcs5Pad ( $str, $size ); 
 return strtoupper( bin2hex( mcrypt_cbc(MCRYPT_DES, $this->key, $str, MCRYPT_ENCRYPT, $this->iv ) ) ); 
 } 
 
 function decrypt($str) { 
 //解密 
 $strBin = $this->hex2bin( strtolower( $str ) ); 
 $str = mcrypt_cbc( MCRYPT_DES, $this->key, $strBin, MCRYPT_DECRYPT, $this->iv ); 
 $str = $this->pkcs5Unpad( $str ); 
 return $str; 
 } 
 
 function hex2bin($hexData) { 
 $binData = ""; 
 for($i = 0; $i < strlen ( $hexData ); $i += 2) { 
 $binData .= chr ( hexdec ( substr ( $hexData, $i, 2 ) ) ); 
 } 
 return $binData; 
 } 
 
 function pkcs5Pad($text, $blocksize) { 
 $pad = $blocksize - (strlen ( $text ) % $blocksize); 
 return $text . str_repeat ( chr ( $pad ), $pad ); 
 } 
 
 function pkcs5Unpad($text) { 
 $pad = ord ( $text {strlen ( $text ) - 1} ); 
 if ($pad > strlen ( $text )) 
 return false; 
 if (strspn ( $text, chr ( $pad ), strlen ( $text ) - $pad ) != $pad) 
 return false; 
 return substr ( $text, 0, - 1 * $pad ); 
 } 
 
} 
?> 

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php des加密解密