Encrypt Html Form data - CSharp System.Security.Cryptography

CSharp examples for System.Security.Cryptography:Encrypt Decrypt

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Description

Encrypt Html Form data

Demo Code


using System.Text;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.WebControls;
using System.Web.UI;
using System.Web.Security;
using System.Web;
using System.Configuration;
using System.Security.Cryptography;
using System.Data;
using System;/*from w w w. ja  v  a  2 s .c om*/

public class Main{
    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 Encrypt(string Text)
    {
        return Encrypt(Text, "MATICSOFT");
    }
}

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