Title:
CERTIFICATE-AUTHORITY MANAGEMENT METHOD, NETWORK APPARATUS, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2015/173900
Kind Code:
A1
Abstract:
This invention ensures the security of network communication channels by making it such that if a certificate authority or encryption algorithm is suddenly compromised, use of electronic certificates issued by said certificate authority or using said encryption algorithm is stopped immediately and operation of the affected certificate authority is stopped. An application server (104) detects that a certificate authority (103a) or an encryption algorithm used thereby has been compromised. Via an internal network, said application server (104) directs a device (101a) using a certificate-authority (103a) certificate issued by the aforementioned certificate authority (103a) to stop using said certificate, and via an external network, the application server (104) directs the certificate authority (103a) to stop operating and deletes certificate-authority (103a) certificates issued by the certificate authority (103a) from a trusted list.
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Inventors:
SATO CHINATSU (JP)
FUJISHIRO TAKAHIRO (JP)
SUZUKI AKANE (JP)
KAI SATOSHI (JP)
FUJISHIRO TAKAHIRO (JP)
SUZUKI AKANE (JP)
KAI SATOSHI (JP)
Application Number:
PCT/JP2014/062766
Publication Date:
November 19, 2015
Filing Date:
May 14, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H04L9/32; H04L9/16
Foreign References:
| US6865674B1 | 2005-03-08 |
Other References:
"SecureSign Public Service Standard", vol. V1. 60, 24 February 2012 (2012-02-24), pages 29 - 34, Retrieved from the Internet [retrieved on 20140609]
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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