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. 19, 2013
Filed:
Feb. 13, 2009
John R. Michener, Sammamish, WA (US);
Niels T Ferguson, Redmond, WA (US);
Carl M. Ellison, Seattle, WA (US);
Josh Benaloh, Redmond, WA (US);
Brian a Lamacchia, Seattle, WA (US);
John R. Michener, Sammamish, WA (US);
Niels T Ferguson, Redmond, WA (US);
Carl M. Ellison, Seattle, WA (US);
Josh Benaloh, Redmond, WA (US);
Brian A LaMacchia, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
This document describes tools that constrain a login to a subset of access rights. In one embodiment, the tools generate a constrained password by executing a cryptographic algorithm on a user ID, general password, and one or more desired constraints. The constrained password is used in place of the general password to gain access rights that are a subset of the access rights that would be granted if the general password were used instead.