Title:
COMMUNICATION SYSTEM, FIRST COMMUNICATION DEVICE, SECOND COMMUNICATION DEVICE, METHOD, AND COMPUTER PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/054518
Kind Code:
A3
Abstract:
The present invention proposes technology for solving the problem of key delivery. A client and a server both have the function of generating the same solution at the same timing on the basis of the same initial solution. The client sends to the server identification information for identifying the client (S1002). The client and the server generate the same solution by time-synchronization on the basis of the same initial solution (S1003, S2002). The client and the server perform encrypted communication using the same solution as the shared key (S1004, S2003).
Inventors:
NAKAMURA TAKATOSHI (JP)
Application Number:
PCT/JP2018/034321
Publication Date:
May 16, 2019
Filing Date:
September 18, 2018
Export Citation:
Assignee:
NTI INC (JP)
International Classes:
H04L9/08; H04L9/16
Foreign References:
| JP2009253650A | 2009-10-29 | |||
| JP2004109420A | 2004-04-08 | |||
| JPH01212041A | 1989-08-25 | |||
| JPH08204700A | 1996-08-09 | |||
| JP2018046521A | 2018-03-22 | |||
| JP2018026631A | 2018-02-15 |
Other References:
See also references of EP 3684006A4
Attorney, Agent or Firm:
MURAMATSU, Yoshihito (JP)
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