php實現和c#一致的DES加密解密

php實現和c#一致的DES加密解密，可以從網上搜到一大堆，但是測試後發現都沒法用。以下正確代碼是我經過苦苦才找到的。希望大家在系統整合時能用的上。
注意：key的長度為8位以內。

//C# 版DES 加解密演算法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{       //加解密密鑰    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);                                      //建立加密對象的密鑰和位移量                        //原文使用ASCIIEncoding.ASCII方法的GetBytes方法                        //使得輸入密碼必須輸入英文文本                        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                  ///                 ///                 ///                 ///  待解密的字串                ///  解密密鑰,要求為8位元組,和加密金鑰相同                /// 解密成功返回解密後的字串，失敗返源串                #region DESDeCode DES解密                public static string DESDeCode(string pToDecrypt, string sKey)                {                    //    HttpContext.Current.Response.Write(pToDecrypt + "
" + 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 }     

key = $key;if( $iv == 0 ) {$this->iv = $key; //預設以$key 作為 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，返回大寫十六進位字串$size = mcrypt_get_block_size ( MCRYPT_DES, MCRYPT_MODE_CBC );$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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