LoginPasswordHelp

加密解密

public static string Encrypt(string Text, string sKey)
        {
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            byte[] inputByteArray;
            inputByteArray = Encoding.Default.GetBytes(Text);
            des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            System.IO.MemoryStream ms = new System.IO.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);
            }
            return ret.ToString();
        }

        public static string Decrypt(string Text, string sKey)
        {
            System.Security.Cryptography.DESCryptoServiceProvider des = new System.Security.Cryptography.DESCryptoServiceProvider();
            int len;
            len = Text.Length / 2;
            byte[] inputByteArray = new byte[len];
            int x, i;
            for (x = 0; x < len; x++)
            {
                i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
                inputByteArray[x] = (byte)i;
            }
            des.Key = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            des.IV = ASCIIEncoding.ASCII.GetBytes(System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(sKey, "md5").Substring(0, 8));
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            System.Security.Cryptography.CryptoStream cs = new System.Security.Cryptography.CryptoStream(ms, des.CreateDecryptor(), System.Security.Cryptography.CryptoStreamMode.Write);
            cs.Write(inputByteArray, 0, inputByteArray.Length);
            cs.FlushFinalBlock();
            return Encoding.Default.GetString(ms.ToArray());
        }

        public static string BytesToHexString(byte[] input)
        {
            StringBuilder hexString = new StringBuilder(64);

            for (int i = 0; i < input.Length; i++)
            {
                hexString.Append(String.Format("{0:X2}", input[i]));
            }
            return hexString.ToString();
        }

        public static byte[] HexStringToBytes(string hex)
        {
            if (hex.Length == 0)
            {
                return new byte[] { 0 };
            }

            if (hex.Length % 2 == 1)
            {
                hex = "0" + hex;
            }

            byte[] result = new byte[hex.Length / 2];

            for (int i = 0; i < hex.Length / 2; i++)
            {
                result[i] = byte.Parse(hex.Substring(2 * i, 2), System.Globalization.NumberStyles.AllowHexSpecifier);
            }

            return result;
        }

 调用

SYSUser sysUser = Session["XXXX"] as SYSUser;
            string username = sysUser.LoginName;
            string linkInfo = string.Format("user={0};date={1}", username, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            string encryPassword = Encrypt(linkInfo, DateTime.Now.ToString("yyyy-MM-dd"));
            string url = string.Format(this.divPilotHomeUrl.Value.Trim()+"/handler/SSOValidate.aspx?userKey={0}", encryPassword);
            HttpBrowserCapabilities hbc = HttpContext.Current.Request.Browser;
            string browserType = hbc.Browser.ToString();     //获取浏览器类型
            string browserVersion = hbc.Version.ToString();    //获取版本号
            if (browserType.IndexOf("Internet") > -1)
            {
                //string script = string.Format("<script>gotoUrl('{0}');</script>",url);
                //this.Page.ClientScript.RegisterStartupScript(this.Page.GetType(), "", script, true);
                string script = string.Format("gotoUrl('{0}')", url);
                ClientScript.RegisterClientScriptBlock(this.GetType(), "gotoUrl", script, true); 
            }
            else
            {
                this.Response.Redirect(url, false);
            }