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INFORMATION PROCESSING DEVICE, CONTROLLER, KEY ISSUING AUTHORITY, METHOD FOR JUDGING REVOCATION LIST VALIDITY, AND KEY ISSUING METHOD

机译:信息处理设备,控制器,密钥发布机构,判定撤销列表有效性的方法和密钥发布方法

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.
机译:存储卡 30 包括存储单元 302 ,其与密钥信息相关联地存储密钥信息和版本信息,密钥信息和版本信息由密钥发行机构发行以及表示生成密钥信息时已发布的最新撤销列表的版本的版本信息;撤销列表接收单元 304 ,其接收具有版本的撤销列表;版本验证单元 308 ,其可用于比较由撤销列表接收单元 304 接收的撤销列表的版本和版本信息;和撤销列表写入单元 309 。当吊销列表的版本比版本信息旧时,吊销列表写入单元 309 的处理被禁止。

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