Reversible encryption algorithm that can be shared between PHP and asp.net C#_PHP tutorial

Because of the work requirements, we need to generate encryption in PHP and then decrypt the password received in asp.net. Below I found a reversible encryption algorithm that can be shared between PHP and asp.net C#. Students who need to know more can refer to it.

php encryption algorithm

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代码如下

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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 ( $text ) - 1} ); if ($pad > strlen ( $text ))             return false;         if (strspn ( $text, chr ( $pad ), strlen ( $text ) - $pad ) != $pad)             return false;         return substr ( $text, 0, - 1 * $pad );     }     } ?>

class DES
{
var $key;
var $iv; // partial Shift amount

function DES($key = '11001100', $iv=0) {
//key length 8, for example: 1234abcd
$this->key = $ key;
                                                                                                                                                                                                                                                                                                ->iv = $iv; //mcrypt_create_iv ( mcrypt_get_block_size (MCRYPT_DES, MCRYPT_MODE_CBC), MCRYPT_DEV_RANDOM );
                                                                                                                                                   . > //Encryption, returns uppercase hexadecimal string
         $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) ) ); str) {
                                                                                                                                                                                                             strBin, MCRYPT_DECRYPT, $this->iv );
            $str = $this->pkcs5Unpad($str); > function hex2bin($hexData) {
$binData = "";
for($i = 0; $i < strlen ( $hexData ); $i += 2) {
$binData .= chr ( hexdec ( substr ( $hexData, $i, 2 ) ) );
                                                              , $blocksize) {
$pad = $blocksize - (strlen ( $text ) % $blocksize);
return $text . str_repeat ( chr ( $pad ), $pad );
}
                                                                                                                                                                                                                                                                                                    . $ Text)
Return false;
If (STRSPN ($ Text, Chr ($ Pad), Strlen ($ Text) -$ Pad)! = $ Pad)
RETURN FALSE; < br />          return substr ($text, 0, - 1 * $pad);
                                                                                                                                                                                                                                                           

asp.net program code

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using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Security.Cryptography; using System.Text; namespace WindowsFormsApplication1 { /// /// DES encryption and decryption string /// public class DesEncryption { /// /// DES encrypted string /// /// Wait Encrypted string & lt;/Param & GT; /// & lt; Param name = "enCryptkey" & gt; encrypted key, requires 8 -bit & lt;/Param & gt; /// & lt; Returns the encrypted string, returns null on failure                        byte[] rgbKey = ASCIIEncoding.ASCII.GetBytes(encryptKey.Substring(0, 8));           byte[] rgbIV = rgbKey;                                                                            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())                                                                                                                                   .Appndformat ("{0: x2}", b); } Ret.tostring (); Return Ret.tostring (); 🎜>           return null;                                                                                                                                                                                          ; /// String                                                                                                                                                                                                                                                                                         . returns>Decryption returns the decrypted string if successful, returns null if failed public static string DecryptDES(string decryptString, string decryptKey = "11001100") { { byte[] rgbKey = ASCIIEncoding.ASCII.GetBytes(decryptKey); byte[] rgbIV = rgbKey; byte[] inputByteArray = new byte[decryptString.Length / 2]; for (int x = 0; x < decryptString.Length / 2;             inputByteArray[x | 🎜> 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());                                                                                                                                                          } } http://www.bkjia.com/PHPjc/444596.html www.bkjia.com true http: //www.bkjia.com/PHPjc/444596.html

Because of work requirements, we need to generate encryption in php and then decrypt the password received in asp.net, as follows I found a reversible encryption algorithm that can be used between PHP and asp.net C#. I need to know more about it...