The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Dec. 16, 2010
Mira Belinkiy, Redmond, WA (US);
Tolga Acar, Sammamish, WA (US);
Thomas Roeder, Redmond, WA (US);
Jason Mackay, Sammamish, WA (US);
Brian Lamachia, Seattle, WA (US);
Mira Belinkiy, Redmond, WA (US);
Tolga Acar, Sammamish, WA (US);
Thomas Roeder, Redmond, WA (US);
Jason Mackay, Sammamish, WA (US);
Brian LaMachia, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Techniques to allow a security policy language to accommodate anonymous credentials are described. A policy statement in a security policy language can reference an anonymous credential. When the policy statement is evaluated to decide whether to grant access to a resource mediated by the policy statement, the anonymous credential is used. The policy language can be implemented to allow one anonymous credential to delegate access-granting rights to another anonymous credential. Furthermore, an anonymous credential can be re-randomized to avoid linkage between uses of the anonymous credential, which can compromise anonymity.