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A Guide to Claims-Based Identity and Access Control

by Dominick Baier Vittorio Bertocci Keith Brown Matias Woloski Eugenio Pace

As systems have become interconnected and more complicated, programmers needed ways to identify parties across multiple computers. One way to do this was for the parties that used applications on one computer to authenticate to the applications (and/or operating systems) that ran on the other computers. This mechanism is still widely used-for example, when logging on to a great number of Web sites. However, this approach becomes unmanageable when you have many co-operating systems (as is the case, for example, in the enterprise). Therefore, specialized services were invented that would register and authenticate users, and subsequently provide claims about them to interested applications. Some well-known examples are NTLM, Kerberos, Public Key Infrastructure (PKI), and the Security Assertion Markup Language (SAML). Most enterprise applications need some basic user security features. At a minimum, they need to authenticate their users, and many also need to authorize access to certain features so that only privileged users can get to them. Some apps must go further and audit what the user does. On Windows®, these features are built into the operating system and are usually quite easy to integrate into an application. By taking advantage of Windows integrated authentication, you don't have to invent your own authentication protocol or manage a user database. By using access control lists (ACLs), impersonation, and features such as groups, you can implement authorization with very little code. Indeed, this advice applies no matter which OS you are using. It's almost always a better idea to integrate closely with the security features in your OS rather than reinventing those features yourself. But what happens when you want to extend reach to users who don't happen to have Windows accounts? What about users who aren't running Windows at all? More and more applications need this type of reach, which seems to fly in the face of traditional advice. This book gives you enough information to evaluate claims-based identity as a possible option when you're planning a new application or making changes to an existing one. It is intended for any architect, developer, or information technology (IT) professional who designs, builds, or operates Web applications and services that require identity information about their users.

Real World .NET, C#, and Silverlight

by Dominick Baier Bill Evjen Gyorgy Balassy Gill Gleeren David Giard Alex Golesh Kevin Grossnicklaus Caleb Jenkins Jeffrey Juday Vishwas Lele Jeremy Likness Scott Millett Christian Nagel Christian Weyer Daron Yondem

A team of MVP authors guides you through the . NET 4 Framework Written by a group of experienced MVPs, this unparalleled book delves into the intricate-and often daunting-world of . NET 4. Each author draws from a particular area of expertise to provide invaluable information on using the various . NET 4, C# 4, Silverlight 4, and Visual Studio tools in the real world. The authors break down the vast . NET 4 Framework into easily digestible portions to offer you a strong foundation on what makes . NET such a popular and successful framework for building a wide range of solutions. Breaks down the . NET 4 Framework into easily understandable sections Features more than a dozen MVPs serving as authors, each of whom focuses on a particular area of expertise Covers such topics as Windows Presentation Foundation, Silverlight 4, Windows Communication Foundation, ASP. NET performance, the entity framework, and more Shares C# tips and tricks and . NET architecture best practices from a team of Microsoft MVPs Real World . NET 4 and C# is the ultimate resource for discovering and understanding the . NET 4 Framework.

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Help

Select your format based upon: 1) how you want to read your book, and 2) compatibility with your reading tool. To learn more about using Bookshare with your device, visit the "Using Bookshare" page in the Help Center.

Here is an overview of the specialized formats that Bookshare offers its members with links that go to the Help Center for more information.

  • Bookshare Web Reader - a customized reading tool for Bookshare members offering all the features of DAISY with a single click of the "Read Now" link.
  • DAISY (Digital Accessible Information System) - a digital book file format. DAISY books from Bookshare are DAISY 3.0 text files that work with just about every type of access technology that reads text. Books that contain images will have the download option of ‘DAISY Text with Images’.
  • BRF (Braille Refreshable Format) - digital Braille for use with refreshable Braille devices and Braille embossers.
  • MP3 (Mpeg audio layer 3) - Provides audio only with no text. These books are created with a text-to-speech engine and spoken by Kendra, a high quality synthetic voice from Ivona. Any device that supports MP3 playback is compatible.
  • DAISY Audio - Similar to the Daisy 3.0 option above; however, this option uses MP3 files created with our text-to-speech engine that utilizes Ivona's Kendra voice. This format will work with Daisy Audio compatible players such as Victor Reader Stream and Read2Go.