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Windows CardSpace (codenamed InfoCard), is Microsoft's now-canceled client software for the Identity Metasystem. CardSpace is an instance of a class of identity client software called an Identity Selector. CardSpace stores references to users' digital identities for them, presenting them to users as visual Information Cards. CardSpace provides a consistent UI designed to help people to easily and securely use these identities in applications and web sites where they are accepted. Resistance to phishing attacks and adherence to Kim Cameron's "7 Laws of Identity"〔 〕 were goals in its design.〔 〕 == Overview == When an Information Card-enabled application or website wishes to obtain information about the user, the application or website requests a particular set of claims from the user. The CardSpace UI then appears, switching the display to the CardSpace service, which displays the user's stored identities as visual Information Cards. The user selects the InfoCard to use and the CardSpace software contacts the issuer of the identity to obtain a digitally signed XML token that contains the requested information. CardSpace also allows users to create ''personal'' (also known as ''self-issued'') Information Cards, which can contain one or more of 14 fields of identity information such as full name, address, etc. Other transactions may require a ''managed'' InfoCard; these are issued by a third party ''identity provider'' that makes the claims on the person's behalf, such as a bank, employer, or a government agency. Windows CardSpace is built on top of the Web Services Protocol Stack, an open set of XML-based protocols, including WS-Security, WS-Trust, WS-MetadataExchange and WS-SecurityPolicy. This means that any technology or platform that supports WS- * protocols can integrate with CardSpace. In order to accept Information Cards, a website developer simply needs to declare an HTML 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Windows CardSpace」の詳細全文を読む スポンサード リンク
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