(19)
(11)
EP 0 809 904 A1
(12)
(43)
Date of publication:
03.12.1997
Bulletin 1997/49
(21)
Application number:
95936188.0
(22)
Date of filing:
30.05.1995
(51)
International Patent Classification (IPC):
H04L
9/
08
( . )
(86)
International application number:
PCT/US1995/006802
(87)
International publication number:
WO 1996/038948
(
05.12.1996
Gazette 1997/01)
(84)
Designated Contracting States:
DE GB
(71)
Applicant:
INTERNATIONAL BUSINESS MACHINES CORPORATION
Armonk, NY 10504 (US)
(72)
Inventors:
HOLLOWAY, Christopher, James
Surrey GU12 3HA (GB)
MATYAS, Stephen, Michael
Poughkeepsie, NY 12601 (US)
(74)
Representative:
Ling, Christopher John
IBM United Kingdom Limited, intellectual Property Department, Hursley Park
Winchester, Hampshire SO21 2JN
Winchester, Hampshire SO21 2JN (GB)
(54)
APPARATUS FOR KEY MANAGEMENT IN A SECURE CRYPTOGRAPHIC FACILITY