发明申请
US20120023329A1 INFORMATION PROCESSING DEVICE, CONTROLLER, KEY ISSUING AUTHORITY, METHOD FOR JUDGING REVOCATION LIST VALIDITY, AND KEY ISSUING METHOD
有权
信息处理设备，控制器，主要发布机构，判定撤销列表有效性的方法和关键问题方法
- 专利标题： INFORMATION PROCESSING DEVICE, CONTROLLER, KEY ISSUING AUTHORITY, METHOD FOR JUDGING REVOCATION LIST VALIDITY, AND KEY ISSUING METHOD
- 专利标题（中）： 信息处理设备，控制器，主要发布机构，判定撤销列表有效性的方法和关键问题方法
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申请号： US13188810申请日： 2011-07-22
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公开(公告)号： US20120023329A1公开(公告)日： 2012-01-26
- 发明人: Masaya Yamamoto , Takahiro Yamaguchi
- 申请人： Masaya Yamamoto , Takahiro Yamaguchi
- 主分类号： H04L9/32
- IPC分类号： H04L9/32
摘要：
A memory card 30 includes a storage unit 302 storing key information and version information in association with the key information, the key information and the version information being issued by a key issuing authority, and the version information indicating a version of the latest revocation list that has been issued when the key information is generated; a revocation list receiving unit 304 that receives a revocation list having a version; a version verification unit 308 operable to compare the version of the revocation list received by the revocation list receiving unit 304 and the version information; and a revocation list writing unit 309. When the version of the revocation list is older than version information, processing by the revocation list writing unit 309 is prohibited.
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