C#实现3DES加密

 

 //密钥

        private const string sKey = "abcdefghij!@#$%^&*()1234";

        //矢量，矢量可以为空

        private const string sIV = "qcDY6X+aPLw= ";

///   加密字符串

        ///   输入的字符串

        ///   加密后的字符串

        public static string Encrypt3DES(string a_strString, string a_strKey)

        {

            TripleDESCryptoServiceProvider DES = new TripleDESCryptoServiceProvider();

            DES.Key = ASCIIEncoding.UTF8.GetBytes(a_strKey);

            DES.Mode = CipherMode.ECB;

            ICryptoTransform DESEncrypt = DES.CreateEncryptor();

            byte[] Buffer = ASCIIEncoding.UTF8.GetBytes(a_strString);

            return byteToHexStr(DESEncrypt.TransformFinalBlock(Buffer, 0, Buffer.Length));

        }

 /// <summary>

        /// 字节数组转16进制字符串

        /// </summary>

        /// <param name="bytes"></param>

        /// <returns></returns>

        public static string byteToHexStr(byte[] bytes)

        {

            string returnStr = "";

            if (bytes != null)

            {

                for (int i = 0; i < bytes.Length; i++)

                {

                    returnStr += bytes[i].ToString("X2");

                }

            }

            return returnStr;

        }

 private void button1_Click(object sender, EventArgs e)

        {

            string ss = Encrypt3DES(textBox1.Text,sKey);

            MessageBox.Show(ss);

                 }