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:
Apr. 07, 2015
Filed:
Apr. 10, 2008
Dennis N Bromley, Issaquah, WA (US);
Sumedh N Barde, Redmond, WA (US);
Quintin S Burns, Fort Mills, SC (US);
Dennis N Bromley, Issaquah, WA (US);
Sumedh N Barde, Redmond, WA (US);
Quintin S Burns, Fort Mills, SC (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
A protocol is provided that permits a third-party key issuing entity to have its issued keys protected by an unrelated key protecting entity. In at least some embodiments, a trusted key protecting entity is injected, in a sense, in a conversation between the third-party key issuing entity and a client to which one or more keys are distributed. The trusted key protecting entity is able to apply various protections which, in at least some embodiments are unknown to the key issuing entity, to a distributed key which can then be used by the client to access protected content.