. NET Learning notes----2015-06-30 (MD5 encryption)

    classProgram {Static voidMain (string[] args) {            //MD5 encryption is irreversible            strings = GetMD5 ("123");            Console.WriteLine (s);        Console.readkey (); }         Public Static stringGetMD5 (stringstr) {            //Create a MD5 objectMD5 MD5 =MD5.            Create (); //Start Encryption//need to convert a string into a byte array            byte[] buffer =Encoding.Default.GetBytes (str); //returns a well-encrypted byte array            byte[] Md5buffer =md5.computehash (buffer); //converts a byte array into a string//byte array to string, theoretically there are 3 ways//parses each element in a byte array into a string Encoding.Default.GetString (Md5buffer) According to the specified encoding format; //directly set the array to ToString (); Pass//each element in the byte array is ToString (); //return Encoding.Default.GetString (md5buffer);            stringSTR1 =NULL;  for(inti =0; i < md5buffer.length; i++) {str1+ = Md5buffer[i]. ToString ("X2"); }            returnstr1; }    }

. NET Learning notes----2015-06-30 (MD5 encryption)