Title:
METHOD OF SHARING KEY
Document Type and Number:
WIPO Patent Application WO/1999/005663
Kind Code:
A1
Abstract:
A method of sharing a key which requires less memory capacity and amount of calculation and ensures a safety equivalent to that of the conventional methods even in a network service in which the information receiver is specified. In this method, an asymmetrical matrix is used instead of a symmetrical matrix as a center algorithm used in a conventional linear scheme KPS, and both of an information transmitter ID and an information receiver ID are used as the ID, while an information transmitter secret algorithm and an information receiver secret algorithm different therefrom are used as the secret algorithms.
Inventors:
NISHIOKA TSUYOSHI (JP)
Application Number:
PCT/JP1998/003323
Publication Date:
February 04, 1999
Filing Date:
July 24, 1998
Export Citation:
Assignee:
ADVANCE KK (JP)
NISHIOKA TSUYOSHI (JP)
NISHIOKA TSUYOSHI (JP)
International Classes:
H04L9/08; (IPC1-7): G09C1/00; H04L9/00
Foreign References:
| JPH0438029A | 1992-02-07 |
Other References:
TANAKA H: "IDENTITY-BASED NON-INTERACTIVE COMMON-KEY GENERATION", GENERATING COMMON KEY WITHOUT INTERCOMMUNICATION BASED ON IDINFORMATION, XX, XX, 1 January 1988 (1988-01-01), XX, pages 31 - 34, XP002918565
Attorney, Agent or Firm:
Ishida, Takashi (Toranomon 3-chome Minato-ku Tokyo, JP)
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