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php实现和c#一致的DES加密解密的方法

php 搞代码 3年前 (2022-01-22) 32次浏览 已收录 0个评论

本篇文章主要介绍php实现和c#一致的DES加密解密的方法,感兴趣的朋友参考下,希望对大家有所帮助。

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 S<a>2本文来源gao*daima.com搞@代#码&网6</a><pre>搞gaodaima代码

ystem.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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