Title:
CERTIFYING SYSTEM
Document Type and Number:
WIPO Patent Application WO/1996/007256
Kind Code:
A1
Abstract:
A certifying system by which a user is identified on the network side without dispersing the secret information of the user. The certifying system is provided with a single main certifying center sharing the user's secret key with the user and a plurality of slave certifying centers sharing secret keys which are different from the user's secret keys with the main certifying center. The main certifying center identifies the user according to a certifying method using the user's secret key. When the user is identified, the main certifying center issues identification formation which certifies the validity of the user to the user. Each of the slave certifying center certifies the validity of the identification information supplied from a user. When the identification information is valid, the slave certifying center issues permission information for permitting the user to access a specific server or an application server of the network.
Inventors:
SUZUKI TOSHINORI (JP)
OHASHI MASAYOSHI (JP)
OHASHI MASAYOSHI (JP)
Application Number:
PCT/JP1995/001708
Publication Date:
March 07, 1996
Filing Date:
August 29, 1995
Export Citation:
Assignee:
KOKUSAI DENSHIN DENWA CO LTD (JP)
SUZUKI TOSHINORI (JP)
OHASHI MASAYOSHI (JP)
SUZUKI TOSHINORI (JP)
OHASHI MASAYOSHI (JP)
International Classes:
G07F7/10; H04L9/32; H04L29/06; H04L29/08; (IPC1-7): H04L9/32; G09C1/00; G06F15/00
Foreign References:
| JPS63294152A | 1988-11-30 | |||
| JPH024018B2 | 1990-01-25 | |||
| JPH05333775A | 1993-12-17 |
Other References:
IEICE TECHNICAL RESEARCH REPORT CS94-107, 1 September 1994, IEICE, pages 105 to 110.
IEICE TECHNICAL RESEARCH REPORT CS91-19, 26 June 1991, IEICE, pages 15 to 22.
See also references of EP 0727894A4
IEICE TECHNICAL RESEARCH REPORT CS91-19, 26 June 1991, IEICE, pages 15 to 22.
See also references of EP 0727894A4
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