using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Web.Security;

using System.Collections;

using System.Security.Cryptography;

using System.IO;



namespace Job.Core

{

    /// <summary>

    /// ???

    /// </summary>

    public class SecretHelper

    {

        public static string ToMd5(string strPwd)

        {

            return FormsAuthentication.HashPasswordForStoringInConfigFile(strPwd, "MD5");

        }



        /// <summary>

        /// ????

        /// </summary>

        /// <param name="pToEncrypt">???????</param>

        /// <param name="sKey">??</param>

        /// <returns>???????</returns>

        public static string Encrypt(string pToEncrypt, string sKey)

        {

            try

            {

                DESCryptoServiceProvider des = new DESCryptoServiceProvider();

                //??????byte???



                //?????UTF8??????Unicode??????

                byte[] inputByteArray = Encoding.Default.GetBytes(pToEncrypt);

                //?????????????



                //??????????????

                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();

            }

            catch

            {

                //JS.Alert("??????????????" + ex.Message.Replace("\r\n", "").Replace("'", ""));

            }

            return "";

        }



        /// <summary>

        /// ????

        /// </summary>

        /// <param name="pToDecrypt">????????</param>

        /// <param name="sKey">??</param>

        /// <returns>???????</returns>

        public static string Decrypt(string pToDecrypt, string sKey)

        {

            try

            {

                DESCryptoServiceProvider des = new DESCryptoServiceProvider();

                byte[] inputByteArray = new byte[pToDecrypt.Length / 2];

                for (int x = 0; x < pToDecrypt.Length / 2; x++)

                {

                    int i = (Convert.ToInt32(pToDecrypt.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();

                //??StringBuild???CreateDecrypt??????????????????????

                StringBuilder ret = new StringBuilder();

                return System.Text.Encoding.Default.GetString(ms.ToArray());

            }

            catch

            {

                //JS.Alert("??????????????" + ex.Message.Replace("\r\n", "").Replace("'", ""));

            }

            return "";

        }

    }

}