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Beginning Web Development, Silverlight, and ASP.NET AJAX

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CHAPTER 10 ■ .<strong>NET</strong> 3.0: PROGRAMMING WITH CARDSPACE 237<br />

Figure 10-4. The “Edit a new card” screen<br />

Using Cards on the <strong>Web</strong><br />

When you visit a web site that requires you to pass credentials using a card, the Card-<br />

Space application will automatically launch <strong>and</strong> ask you for the card to use. Different<br />

sites have different requirements, <strong>and</strong> the more sensitive the information, the more<br />

secure the card will need to be. As you can imagine, banking <strong>and</strong> brokerage sites will have<br />

different security needs from simple social networking sites, <strong>and</strong> they will likely require<br />

managed cards issued by a trusted authority. In this simple example, a personal card like<br />

the one you created in the previous section is enough.<br />

Figure 10-5 shows a simple web site that requests you to sign in using a CardSpace<br />

card.

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