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:
Sep. 30, 2014
Filed:
Dec. 21, 2012
Microsoft Corporation, Redmond, WA (US);
Yu Lin Sie, Bellevue, WA (US);
Kedarnath A. Dubhashi, Redmond, WA (US);
Anand D. Paka, San Francisco, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Various embodiments enable so-called extended data to be added to a signed digital certificate without having a private key of a Certification Authority available. In at least some embodiments, a request to add extended data to a digital certificate generated by a certificate authority is received from a client device. The digital certificate includes a signed first portion, and an unsigned second portion that includes reserved empty spaces that are reserved for the extended data. The extended data is added to the unsigned second portion. the extended data includes a client ID associated with the client device. The unsigned portion of the digital certificate is signed after the extended data is added.