asp.net TripleDES加密、解密算法

2019-05-12 07:56:45丽君


                return (new System.Text.UnicodeEncoding()).GetString(ms.ToArray());   

            }   

            catch (Exception ex)   

            {   

                throw ex;   

            }   

        }   

        //使用:   

        //string str = Encrypt("bbb");   

        //Console.WriteLine(Decrypt(str, "bbb"));   

  

        //加密,使用密码产生加密算法的公钥,并使用TripleDES对密码进行加密。   

        public static string EncryptWithKey(string pass, string p_key)   

        {   

            try  

            {   

                byte[] bt = (new System.Text.UnicodeEncoding()).GetBytes(pass);   

                PasswordDeriveBytes pdb = new PasswordDeriveBytes(p_key, null);   

                byte[] key = pdb.GetBytes(24);   

                byte[] iv = pdb.GetBytes(8);   

                MemoryStream ms = new MemoryStream();   

                TripleDESCryptoServiceProvider tdesc = new TripleDESCryptoServiceProvider();   

                CryptoStream cs = new CryptoStream(ms, tdesc.CreateEncryptor(key, iv), CryptoStreamMode.Write);