公开(公告)号：US11792023B2

公开(公告)日：2023-10-17

申请号：US17270378

申请日：2019-05-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomoki Takazoe ,  Yoichi Masuda ,  Kenji Yasu ,  Yuji Unagami

IPC: H04L9/32 ,  H04L9/30

CPC classification number: H04L9/3268 ,  H04L9/30

Abstract: A GM acquires a first certificate revocation list designating revoked public key certificates and distributed from a certificate authority server. The GM generates a second certificate revocation list produced by extracting information on a plurality of home electric appliances from the first certificate revocation list. The GM restricts communication with a device for which the public key certificate is revoked, by distributing the second certificate revocation list generated to the plurality of home electric appliances.

公开(公告)号：US09813847B2

公开(公告)日：2017-11-07

申请号：US15317344

申请日：2015-05-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Naohiro Fukuda ,  Kenji Yasu ,  Yoichi Masuda

IPC: H04B5/00 ,  H04W4/00 ,  G06F3/023 ,  G06F3/147 ,  H04W76/02

CPC classification number: H04W4/80 ,  G06F3/023 ,  G06F3/147 ,  G06F21/44 ,  G08C2201/20 ,  G09G2370/16 ,  G09G2370/22 ,  H04L29/08 ,  H04Q9/00 ,  H04W76/11

Abstract: In a communication system including: a control apparatus which controls pairing for communication according to kinds of pairing methods; and devices each of which performs pairing for communication according to one or more predetermined kinds of pairing methods, and performs encryption communication with the control apparatus by pairing with the control apparatus, wherein the control apparatus includes: a kind obtaining unit which obtains, from each device, the predetermined kinds of pairing methods for the device; a combination determining unit which determines, for each device, a combination of a same kind of pairing methods included in both the plurality of kinds of pairing methods for the control apparatus and the predetermined kinds of pairing methods obtained by the kind obtaining unit; and a display unit which displays, to a user, the combination of the same kind of pairing methods determined by the combination determining unit according to a predetermined condition.