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. 15, 2009
Filed:
Jun. 30, 2005
Selvaraj Nalliah, Redmond, WA (US);
Andrew S. Moss, Kirkland, WA (US);
David P. Limont, Seattle, WA (US);
Gregory A. Bolles, Snohomish, WA (US);
John Allen Atwood, Duvall, WA (US);
Massimiliano Ciccotosto, Kirkland, WA (US);
Selvaraj Nalliah, Redmond, WA (US);
Andrew S. Moss, Kirkland, WA (US);
David P. Limont, Seattle, WA (US);
Gregory A. Bolles, Snohomish, WA (US);
John Allen Atwood, Duvall, WA (US);
Massimiliano Ciccotosto, Kirkland, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Example embodiments provide for authenticating a device to multiple servers without using delegation or having to have a password stored on the device. Multiple certificates that are typically non-delegable are used to authenticate the device to each server. One certificate is used to authenticate the client with the front-end server and a second certificate is used to authenticate the client against a back-end server. Rather than having both certificates reside with the device, however, the second certificate is originally stored by the client in the back-end. It is then retrieved 'on-the-fly' by the front-end upon authentication of the client and used to authenticate itself as the client in order to act on behalf of the client when retrieving data from the back-end server.