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. 21, 2006
Filed:
May. 31, 2001
Applicant:
David P. Jablon, Westboro, MA (US);
Inventor:
David P. Jablon, Westboro, MA (US);
Assignee:
Phoenix Technologies Ltd., Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems, methods and software that enable multiple servers to verify a password, without providing any single server, client or network attacker with the ability to validate guesses for the password off-line is disclosed. Password security is maintained in a very simple model, requiring no previously secured or server-authenticated channel between the client and any servers. Data may be protected by a small password, and no other keys, remains secret even against an enemy that compromises any, but not all, of two or more cooperating authenticating servers.