Method --1
Saving an Encrypted Password to the Database
The following code customization encrypts the password before saving it into the database. Add this code to the UsersRecordControl class, located in
NET Framework 1.1:

...\<App Folder>\Users\AddUsersPage.Controls.cs or .vb

.NET Framework 2.0:

...\<App Folder>\App_Code\Users\AddUsersPage.Controls.cs or .vb

using System.Security.Cryptography;
...
public override void GetUIData()
{
base.GetUIData();
UsersRecord record = this.GetRecord();
string password = record.Password+record.UserID;
HashAlgorithm mhash = new SHA1CryptoServiceProvider();
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(password);
byte[] bytHash = mhash.ComputeHash(bytValue);
mhash.Clear();
record.Password = Convert.ToBase64String(bytHash);
}

OR
Method --2

Using the Encrypted Password when Logging into the Application:

The following code hashes the Password and UserID to create the encrypted password. It then puts this encrypted password back in to the Password text field before calling the base.login() method to complete the login process. Place this code in the SignInControl class, located in:

.NET Framework 1.1:

...\<App Folder>\Shared\SignIn_Control.Controls.cs or .vb

.NET Framework 2.0:

...\<App Folder>\App_Code\Shared\SignIn_Control.Controls.cs or .vb

using System.Security.Cryptography;
...
public override void Login(bool redirectOnSuccess)
{
string password = this.Password.Text+this.UserName.Text;
HashAlgorithm mhash = new SHA1CryptoServiceProvider();
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(password);
byte[] bytHash = mhash.ComputeHash(bytValue);
mhash.Clear();
this.Password.Text = Convert.ToBase64String(bytHash);
base.Login(redirectOnSuccess);
}