Title:
METHOD OF CONTROLLING A PUBLIC KEY CERTIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2003055118
Kind Code:
A3
Abstract:
The invention relates to a control method which is designed to issue, distribute and verify certificates in a public key certification system involving numerous certification entities and users which are arranged according to a hierarchical infrastructure. The inventive method is characterised in that at least two certificates are issued to each of said certification entities, except the highest entity in the hierarchical structure, by two other different entities of the same level or a higher level in the hierarchical structure.
Inventors:
ZAHM ALAIN (FR)
Application Number:
PCT/EP2002/014118
Publication Date:
March 11, 2004
Filing Date:
December 10, 2002
Export Citation:
Assignee:
SCHLUMBERGER SYSTEMS & SERVICE (FR)
ZAHM ALAIN (FR)
ZAHM ALAIN (FR)
International Classes:
H04L9/32; (IPC1-7): H04L9/32
Other References:
MAURER U: "Modelling a public-key infrastructure", COMPUTER SECURITY-ESORICS 96. 4TH EUROPEAN SYMPOSIUM ON RESEARCH IN COMPUTER SECURITY PROCEEDINGS, COMPUTER SECURITY - ESORICS 96. 4TH EUROPEAN SYMPOSIUM ON RESEARCH IN COMPUTER SECURITY. PROCEEDINGS, ROME, ITALY, 25-27 SEPT. 1996, 1996, Berlin, Germany, Springer-Verlag, Germany, pages 325 - 350, XP002212747, ISBN: 3-540-61770-1
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