PHP implementation and C # consistent DES encryption decryption

Original: PHP implementation and C # consistent DES encryption and decryption

PHP implementation and C # consistent DES encryption decryption, can be searched from the internet to a large heap, but the test found no use. The following are the correct codes that I found after a hard struggle. I hope you can use it when the system is integrated.

Note: The length of the key is within 8 bits.

C # version des plus decryption algorithm 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{//Add decryption key private static string skey = "12345678";                   Initialization vector private static byte[] Desiv = {0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF};                   #region Desencode des encryption 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); //Establish the key and offset of the encrypted object///The GetBytes method of using the Asciiencoding.ascii method//Make the input password must be entered in English text 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" > String to Decrypt </param>//<param Nam                E= "SKey" > Decryption key, required 8 bytes, same as encryption key </param>//<returns> decryption successfully returned decrypted string, failed back to source string </returns>                #region Desdecode des decryption 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; + +) {int i = (Convert.ToInt32 (pT                        Odecrypt.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}

<?phpclass Des{var $key; var $iv;//Offset function DES ($key, $iv =0) {//key length 8 for example: 1234abcd$this->key = $key; if ($iv = = 0 {$this->iv = $key;//default to $key as IV} else {$this->iv = $iv;//mcrypt_create_iv (Mcrypt_get_block_size (mcrypt_des , MCRYPT_MODE_CBC), mcrypt_dev_random);}} function Encrypt ($STR) {//encryption, return 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, $this-&G T;IV)));} function Decrypt ($STR) {//Decrypt $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);}? >

PHP implementation and C # consistent DES encryption decryption