This example demonstrates how to use MD5 add secret using Asp.Net2.0 and C#.Net
This example demonstrates how to use MD5 add secret.
First, you will need to import the System.Collections.Cryptography and System.Collections.Text namespace.
using System.Security.Cryptography;
using System.Text; |
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The System.Security.Cryptography namespace provides cryptographic services, including secure encoding and decoding of data, as well as many other operations, such as hashing, random number generation, and message authentication.
The System.Text namespace contains classes representing ASCII, Unicode, UTF-7, and UTF-8 character encodings; abstract base classes for converting blocks of characters to and from blocks of bytes; and a helper class that manipulates and formats string objects without creating intermediate instances of String.
We use the Md5AddSecret Function to do the work.
public string Md5AddSecret(string strChange)
{
byte[] pass = Encoding.UTF8.GetBytes(strChange);
MD5 md5 = new MD5CryptoServiceProvider();
string strPassword = Encoding.UTF8.GetString(md5.ComputeHash(pass));
return strPassword; } |
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The front end Md5AddSecretCsharp2005.aspx page looks something like this:
<table border="1"style="width: 323px; height: 76px;">
<tr>
<td style="width: 190px; height: 28px;"> Need To Add Secret :</td> <td style="width: 91px; height: 28px;"> <asp:TextBox ID="txtNeed" runat="server" Width="128px"></asp:TextBox></td> </tr> <tr>
<td style="width: 190px"> Encrypt Result :</td> <td style="width: 91px"> <asp:TextBox ID="TxtResult" runat="server" Height="17px" Width="130px" ReadOnly="True"></asp:TextBox></td> </tr> <tr>
<td colspan="2" style="height: 26px"> <asp:Button ID="bntDisp" runat="server" OnClick="bntDisp_Click" Text="Add secret" /></td> </tr> |
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The flow for the code behind page is as follows.
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Security.Cryptography;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e) { } public string Md5AddSecret(string strChange) {
//Change the syllable into UTF8 code
byte[] pass = Encoding.UTF8.GetBytes(strChange);
MD5 md5 = new MD5CryptoServiceProvider();
string strPassword = Encoding.UTF8.GetString(md5.ComputeHash(pass));
return strPassword; } protected void bntDisp_Click(object sender, EventArgs e) {
try {
this.TxtResult.Text = this.Md5AddSecret(this.txtNeed.Text); } catch (Exception ex) {
Response.Write(ex.ToString()); } } |
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