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:
Nov. 04, 2014
Filed:
Nov. 13, 2008
Richard Chow, Sunnyvale, CA (US);
Philippe J. P. Golle, San Francisco, CA (US);
Bjorn Markus Jakobsson, Mountain View, CA (US);
Jessica N. Staddon, Redwood City, CA (US);
Richard Chow, Sunnyvale, CA (US);
Philippe J. P. Golle, San Francisco, CA (US);
Bjorn Markus Jakobsson, Mountain View, CA (US);
Jessica N. Staddon, Redwood City, CA (US);
Palo Alto Research Center Incorporated, Palo Alto, CA (US);
Abstract
One embodiment of the present invention provides a system for automatically authenticating a user. During operation, the system receives a user's request for authentication. The system then extracts information associated with the user from user-specific information stored in an enterprise computer. The extracted user information does not explicitly relate to a password. The system further generates one or more challenges based on the extracted user information, and receives the user's response to the challenges. Subsequently, the system compares the user's response to the extracted user information, and authenticates the user.