PHP与asp.net C#可共用的可逆加密算法
因为工作需我们需要在php中生成加密然后在asp.net中接受过来的密码再解密,下面我找到一个PHP与asp.net C#可共用的可逆加密算法,有需要了解的同学可参考.
php加密算法,代码如下:
<?php class DES { var $key ; var $iv ; //偏移量 function DES( $key = '11001100' , $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} ); //开源代码phpfensi测试数据 if ( $pad > strlen ( $text )) return false; if ( strspn ( $text , chr ( $pad ), strlen ( $text ) - $pad ) != $pad ) return false; return substr ( $text , 0, - 1 * $pad ); } } ?>asp.net程序代码,代码如下:
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Security.Cryptography; using System.Text; namespace WindowsFormsApplication1 { /// <summary> /// DES加密解密字符串 /// </summary> public class DesEncryption { /// <summary> /// DES加密字符串 /// </summary> /// <param name="encryptString">待加密的字符串</param> /// <param name="encryptKey">加密密钥,要求为8位</param> /// <returns>加密成功返回加密后的字符串，失败返回null</returns> public static string EncryptDES(string encryptString, string encryptKey = "11001100" ) { try { byte[] rgbKey = ASCIIEncoding.ASCII.GetBytes(encryptKey.Substring(0, 8)); byte[] rgbIV = rgbKey; byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString); DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); StringBuilder ret = new StringBuilder(); foreach (byte b in mStream.ToArray()) { ret.AppendFormat( "{0:X2}" , b); } ret.ToString(); return ret.ToString(); } catch { return null; } } /// <summary> /// DES解密字符串 /// </summary> /// <param name="decryptString">待解密的字符串</param> /// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param> /// <returns>解密成功返回解密后的字符串，失败返回null</returns> public static string DecryptDES(string decryptString, string decryptKey = "11001100" ) { try { byte[] rgbKey = ASCIIEncoding.ASCII.GetBytes(decryptKey); byte[] rgbIV = rgbKey; byte[] inputByteArray = new byte[decryptString.Length / 2]; for (int x = 0; x < decryptString.Length / 2; x++) { int i = (Convert.ToInt32(decryptString.Substring(x * 2, 2), 16)); inputByteArray[x] = (byte)i; } DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Encoding.UTF8.GetString(mStream.ToArray()); } catch { return null; } } } }查看更多关于PHP与asp.net C#可共用的可逆加密算法 - php高级应用的详细内容...
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