Information Security Device And Counter Control Method

  • Published: Jan 15, 2009
  • Earliest Priority: Jun 25 2007
  • Family: 3
  • Cited Works: 0
  • Cited by: 64
  • Cites: 19
  • Additional Info: Full text
Abstract

A method is provided for flexibly setting a shared counter shared by a plurality of security modules sharing a counter in tree structures, while curbing the amount of secure memory used. The shared counter is realized by a first counter group having a tree structure managed by a first secure module and a second counter group having a tree structure managed by a second secure module sharing a node in the tree structure of the first counter group and a node in the tree structure of the second counter group. The method of sharing using tree structures enables flexibly addition, deletion and access restriction setting of modules that use the shared counter.


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Document History
  • Publication: Jan 15, 2009
  • Application: Jun 25, 2008
    US US 14626908 A
  • Priority: Jun 25, 2007
    JP 2007166321 A

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