Authentication

This code snippet and document show how to connect to an FTP server with SSL enabled using ASP.NET. The code is written in C#.NET.

Learn how to use cryptography to improve the security of your applications. Discover the basic building blocks for encryption and hashing using C#.

Using RFID hardware and incorporating RFID tag information into your applications can really be quite simple. See what can be done with less than $100 and no more than a few dozen lines of code.

Employ this function in your e-commerce application to validate the credit card numbers your users enter.

Learn about maintaining code groups at runtime.

For situations when a company doesn't want the responsibility of maintaining a user password file, Tom Archer presents a mechanism that stores and uses the hash codes of passwords instead of the actual passwords to validate users.

ASP.NET 2.0 provides new classes, methods, and controls that make implementing authentication easy. Learn how to apply the authentication functionalities of the Membership class and its methods into ASP.NET applications.

A common threat Web developers face is a password-guessing attack known as a brute-force attack. A brute-force attack is an attempt to discover a password by systematically trying every possible combination of letters, numbers, and symbols until you discover the one correct combination that works. If your Web site requires user authentication, you are a good target for a brute-force attack.

Learn how to use Windows authentication for Web-based intranet applications to access a SQL Server database using ASP.NET.

Learn how role-based security in .NET works. The sample code shows how to implement a database-driven security model for enterprise applications.

By applying ASP.NET programming logic, you can store user data in either XML files or a Web configuration file and then validate users by using those files. Learn how to apply both of these simple methods of authentication.

By default anyone can access your ASP.NET web pages; however, there is a way to keep nosy, unwanted types out. Discover how to use authentication.