Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
INFORMATION PROCESSING DEVICE, CONTROLLER, CERTIFICATE ISSUING AUTHORITY, METHOD OF DETERMINING VALIDITY OF REVOCATION LIST, AND METHOD OF ISSUING CERTIFICATES
Document Type and Number:
WIPO Patent Application WO/2012/011254
Kind Code:
A1
Abstract:
A memory card (30) is provided with: certificate information which is issued by a certificate issuing authority; a storage unit (302) which indicates the latest version of the revocation list issued at the time the certificate information was generated and which stores certificate information and version information which is associated information; a revocation list receiving unit (304) which receives a revocation list with a version added; and a version verification unit (308) which compares the version of the revocation list received by the revocation list receiving unit (304) with the version information. The memory card (30) suppresses a writing operation by the revocation list write unit (309) when it is determined that the version of the revocation list is older than the version information.

Inventors:
YAMAMOTO, Masaya (())
山本 雅哉 (())
Application Number:
JP2011/004025
Publication Date:
January 26, 2012
Filing Date:
July 14, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
パナソニック株式会社 (〒01 大阪府門真市大字門真1006番地 Osaka, 〒5718501, JP)
YAMAMOTO, Masaya (())
International Classes:
G06F21/24; H04L9/08; H04L9/32
Attorney, Agent or Firm:
NAKAJIMA, Shiro et al. (6F Yodogawa 5-Bankan, 2-1 Toyosaki 3-chome, Kita-ku, Osaka-sh, Osaka 72, 〒5310072, JP)
Download PDF:
Claims: