Hi,i just joined this community for developing my skills in .NET.I have problem with password security,i have created window Forms(GUI),on first form i have username and password controls and also one login button.Now i want to store password entered by user in encrypted format on button click,and again if user want to login this password should be compared to that password which is already present in database in encrypted format,can i use sql.can someone help me,plz provide detail code sample as i m new to this......thank u