Title:
メッセージ認証システム,メッセージ送信装置,メッセージ受信装置,メッセージ送信方法,メッセージ受信方法およびプログラム
Document Type and Number:
Japanese Patent JP4665617
Kind Code:
B2
Abstract:
In a message authentication system in which a message is transmitted from a message transmission apparatus 100 to individual message reception apparatuses 120 through wireless communication connecting the message transmission apparatus 100 with the message reception apparatuses 120 via intermediary message reception apparatuses and the message is authenticated at each message reception apparatus, the message transmission apparatus first transmits an electronic signature to each message reception apparatus as a message transmission notification and then transmits the message and an authentication key to the message reception apparatus after allowing a predetermined time lag. Thus, the message reception apparatus does not need to hold the message before the authentication key is published (FIG. 7).
Inventors:
Kenji Yao
Application Number:
JP2005171200A
Publication Date:
April 06, 2011
Filing Date:
June 10, 2005
Export Citation:
Assignee:
Oki Electric Industry Co., Ltd.
International Classes:
H04L9/32; G09C1/00
Domestic Patent References:
| JP10069222A | ||||
| JP2003224560A | ||||
| JP2004248270A |
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Tetsuo Kanamoto
Koji Hagiwara