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:
May. 20, 2014
Filed:
Jan. 23, 2013
Fujitsu Limited, Kawasaki, JP;
Kazuyoshi Furukawa, Kawasaki, JP;
Hisashi Kojima, Yokosuka, JP;
Masahiko Takenaka, Kawasaki, JP;
Tetsuya Izu, Ichikawa, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A key setting method executed by a node transmitting and receiving a packet through multi-hop communication in an ad-hoc network among ad-hoc networks, includes receiving a packet encrypted using a key specific to a gateway and simultaneously reported from the gateway in the ad-hoc network; detecting a connection with a mobile terminal capable of communicating with a server retaining a key specific to a gateway in each ad-hoc network among the ad-hoc networks; transmitting to the server, via the mobile terminal and when a connection with the mobile terminal is detected, the encrypted packet received; receiving from the server and via the mobile terminal, a key specific to a gateway in the ad-hoc network and for decrypting the encrypted packet transmitted; and setting the received key specific to the gateway in the ad-hoc network as the key for encrypting the packet.