C#des encryption

Record it

DES encryption

 Public Static stringDesencrypt (stringData,stringkey) {            returnDesencrypt (Data, Key,"Utf-8"); }/// <summary>        ///des encryption Algorithm/// </summary>        /// <param name= "Data" >Encrypt plaintext</param>        /// <param name= "key" >Key length is 8 characters</param>        /// <param name= "CharSet" >character encoding</param>        /// <returns>back to Redaction</returns>         Public Static stringDesencrypt (stringData,stringKeystringCharSet) {DESCryptoServiceProvider des=NewDESCryptoServiceProvider (); Des. Key=ASCIIEncoding.ASCII.GetBytes (key); Des.iv=ASCIIEncoding.ASCII.GetBytes (key); byte[] Inputbytearray =encoding.getencoding (CharSet).            GetBytes (Data); System.IO.MemoryStream Ms=NewSystem.IO.MemoryStream (); CryptoStream CS=NewCryptoStream (MS, Des.            CreateEncryptor (), cryptostreammode.write); Cs. Write (Inputbytearray,0, inputbytearray.length); Cs.            FlushFinalBlock (); byte[] ret =Ms.            ToArray (); Cs.            Close (); Ms.            Close (); returnbytestohexstring (ret); }  Public Static stringBytestohexstring (byte[] bytes) {System.Text.StringBuilder s=NewSystem.Text.StringBuilder (); foreach(byteBinchbytes) {S.append (b.tostring ("X2").            ToUpper ()); }            returns.tostring (); }

Decrypt:

  Public Static stringDesdecrypt (stringData,stringkey) {            returnDesdecrypt (Data, Key,"Utf-8"); }        /// <summary>        ///DES decryption Algorithm/// </summary>        /// <param name= "Data" >Ciphertext</param>        /// <param name= "key" >Key length is 8 characters</param>        /// <param name= "CharSet" >character encoding</param>        /// <returns>plaintext</returns>         Public Static stringDesdecrypt (stringData,stringKeystringCharSet) {DESCryptoServiceProvider des=NewDESCryptoServiceProvider (); Des. Key=ASCIIEncoding.ASCII.GetBytes (key); Des.iv=ASCIIEncoding.ASCII.GetBytes (key); byte[] Inputbytearray =hexstringtobytes (Data); System.IO.MemoryStream Ms=NewSystem.IO.MemoryStream (); CryptoStream CS=NewCryptoStream (MS, Des.            CreateDecryptor (), cryptostreammode.write); Cs. Write (Inputbytearray,0, inputbytearray.length); Cs.            FlushFinalBlock (); byte[] ret =Ms.            ToArray (); Cs.            Close (); Ms.            Close (); returnencoding.getencoding (CharSet).        GetString (ret); }  Public Static byte[] Hexstringtobytes (stringhexstring) {            if(HexString = =NULL)            {                Throw NewArgumentNullException ("hexstring"); }            if((Hexstring.length &1) !=0)            {                Throw NewArgumentOutOfRangeException ("hexstring", HexString,"hexstring must contain an even number of characters."); }            byte[] result =New byte[Hexstring.length/2];  for(inti =0; i < hexstring.length; i + =2) {Result[i/2] =byte. Parse (Hexstring.substring (i,2), Numberstyles.hexnumber); }            returnresult; }

C#des Encryption