WEB SECURITY ADVISOR
ASP.NET authentication: Three new options for Web services
Mike Chapple, CISSP
03.11.2004
Rating: -2.33- (out of 5)
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Web developers migrating to ASP.NET are about to find themselves faced with new authentication options available for use in Web services. These tools offer greatly enhanced functionality over prior authentication mechanisms and allow you to seamlessly integrate the appropriate level of security into your applications.
Let's take a brief look at each of the three authentication modes supported by ASP.NET.
MORE INFORMATION ON SECURING WEB SERVICES:
Passport Authentication allows users of Microsoft's Passport service to use their existing .NET Passport credentials to authenticate to your site. This technique is mainly used by extremely large-scale Web sites, such as Microsoft's own MSN network, the USA Today Web site and e-Bay.
So which authentication mechanism is right for you? It depends upon your needs. If you're building a public Web application that will see large-scale use, you'll probab
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ly find Forms Authentication the most flexible and appropriate technique. Windows Authentication offers a viable alternative when users already possess a domain account. This makes it an ideal choice for intranet applications and minimizes the number of times users must provide their authentication credentials during a single session. Microsoft's Passport is a great idea in theory, but it's unlikely that you'll find it useful enough to justify the $10,000 annual licensing fee charged by Microsoft.
About the author
Mike Chapple, CISSP, currently serves as Chief Information Officer of the Brand Institute, a Miami-based marketing consultancy. He previously worked as an information security researcher for the U.S. National Security Agency. His publishing credits include the TICSA Training Guide from Que Publishing, the CISSP Study Guide from Sybex and the upcoming SANS GSEC Prep Guide from John Wiley. He's also the About.com Guide to Databases.
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