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:
Jul. 12, 2005
Filed:
Feb. 04, 1999
Applicants:
Eiji Watanabe, Kanagawa, JP;
Hiroshi Take, Kanagawa, JP;
Yoshihiro Sekiguchi, Tokyo, JP;
Tomo Yamada, Tokyo, JP;
Yasuo Tojima, Chiba, JP;
Inventors:
Eiji Watanabe, Kanagawa, JP;
Hiroshi Take, Kanagawa, JP;
Yoshihiro Sekiguchi, Tokyo, JP;
Tomo Yamada, Tokyo, JP;
Yasuo Tojima, Chiba, JP;
Assignee:
Meteora System Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L009/22 ;
U.S. Cl.
CPC ...
Abstract
A key generator () generates, from an IP-key () for entering a closed IP network (), a set () of session keys () indexed for identification, an index pointer () points an index (i, j) to identify a session key (), the set () of session keys has a divergence barrier incorporated therein for barring a computational approach to any session key (), and an unbar data set (i, j,) unbars the divergence barrier.