Card Space

CARD Space

Windows CardSpace, formerly codenamed “InfoCard”, is a piece of client software that enables users to provide their digital identity to online services in a simple, secure and trusted way. It is what is known as an identity selector: when a user – or subject – needs to authenticate to a website or a web service, CardSpace pops up a special security-hardened UI with a set of “cards” for the user to choose from. Each card has some identity data associated with it – though this is not actually stored in the card – and has been given to the user by an identity provider such as their bank, employer or government. In fact, the user can also act as an identity provider – this is essentially what we do every time we register at a website.

CardSpace is an implementation of an identity selector on Microsoft Windows. Other operating systems will see their own identity selector implementations. The architecture upon which CardSpace has been built – consisting of subjects, identity providers and relying parties – is called “The Identity Metasystem”. This isn’t just a Microsoft initiative, but rather it is the shared vision of many across the industry as to how we can solve some of the fundamental identity challenges on the Internet today.

More information, check the following url dedicated for CardSpace

http://cardspace.netfx3.com/