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. 17, 2015
Filed:
Sep. 13, 2012
Irina Gorbach, Bellevue, WA (US);
Venkatesh Krishnan, Sammamish, WA (US);
Andrey Shur, Redmond, WA (US);
Dmitry Denisov, Bellevue, WA (US);
Lars Kuhtz, Seattle, WA (US);
Sumant Mehta, Seattle, WA (US);
Marina Galata, Sammamish, WA (US);
Irina Gorbach, Bellevue, WA (US);
Venkatesh Krishnan, Sammamish, WA (US);
Andrey Shur, Redmond, WA (US);
Dmitry Denisov, Bellevue, WA (US);
Lars Kuhtz, Seattle, WA (US);
Sumant Mehta, Seattle, WA (US);
Marina Galata, Sammamish, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Embodiments are directed to securely filtering trust services records. In one scenario, a client computer system receives at least one of the following trust services records: a trust services certificate, a principal certificate, a group certificate and a trust services policy. The client computer system performs a time validity check to validate the trust services record's timestamp, performs an integrity check to validate the integrity of the trust services record and performs a signature validity check to ensure that the entity claiming to have created the trust services record is the actual creator of the trust services record. The client computer system then, based on the time validity check, the integrity check and the signature validity check, determines that the trust services record is valid and allows a client computer system user to perform a specified task using the validated trust services record.