PHP and C # consistent DES encryption and decryption algorithm classes

Des plus decryption algorithms, common classes in C # and PHP.

Attention:

1. The key in the class is the same value as the Vector IV.

2, the code is used Utf-8

The following is the specific code, can be copied directly to carry out the actual test

C # version Code:

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; C # des plus decryption algorithm class public class des{//Add decryption key private static string skey = "12345678"; #region desencode Des Encryption Publ IC static string Desencode (String ptoencrypt, String sKey) {Ptoencrypt = HttpContext.Current.Server.UrlEncode (ptoencr   YPT);   DESCryptoServiceProvider des = new DESCryptoServiceProvider (); byte[] Inputbytearray = encoding.getencoding ("UTF-8").       GetBytes (Ptoencrypt); 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 #region Desdecode des decrypt public static string Desdecode (String ptodecrypt, String sKey) {Descryptoserviceprovi Der des = new DESCryptoServiceProvider (); byte[] Inputbytearray = new Byte[ptodecrypt.length/2];for (int x = 0; x < PT ODECRYPT.LENGTH/2; X + +) {int i = (Convert.ToInt32 (ptodecrypt.substring (x * 2, 2)); Inputbytearray[x] = (byte) i;} des. Key = ASCIIEncoding.ASCII.GetBytes (sKey);d Es.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 Version Code:

 key = $key; $this->iv = $key; The default is $key as iv}//cryptographic function encrypt ($STR) {$size = Mcrypt_get_block_size (Mcrypt_des, MCRYPT_MODE_CBC); $str = $this-&gt ;p Kcs5pad ($str, $size); return Strtoupper (Bin2Hex (MCRYPT_CBC (mcrypt_des, $this->key, $str, Mcrypt_encrypt, $this-& GT;IV)));} Decryption function Decrypt ($str) {$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 ($text)) return False;if (St RSPN ($text, Chr ($pad), strlen ($text)-$pad)! = $pad) return False;return substr ($text, 0, 1 * $pad);}} Header ("content-type:text/html; Charset=utf-8 "); $key = ' 12345678 '; $str = ' abc.123 '; $des = new des ($key); $str _en_des = $des->encrypt ($STR); Encrypted string $str_de_des = $des->decrypt ($str _en_des); Decrypt string echo ' encrypted string: ', $str, '
'; Echo ' encryption key: ', $key, '

'; Echo ' encrypted after string: ', $str _en_des, '
'; Echo ' decrypted string: ', $str _de_des, '
';? >

The code is searched online for sorting, especially thanks to blog: http://blog.csdn.net/e421083458/article/details/39373815

The above describes the PHP and C # consistent DES encryption and decryption algorithm classes, including the aspects of the content, I hope that the PHP tutorial interested in a friend to help.

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