发明名称 |
Storage Medium Processing Method, Storage Medium Processing Apparatus, and Program |
摘要 |
User keys make sensitive management of users which are different per type of services. A SD card SDq may store plural kinds of service user keys Kus which are different per type of services. The service user key Kus is encrypted by a medium unique key Kmu and is stored in a protection area 3 . The protection area 3 stores a master user key Kumst encrypted by the medium unique key Kmu, as well as the service user keys Kus. The master user key Kumst is a key used for encrypting the service user key Kus when obtaining a service user key Kus. |
申请公布号 |
US2007223705(A1) |
申请公布日期 |
2007.09.27 |
申请号 |
US20050571064 |
申请日期 |
2005.06.02 |
申请人 |
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发明人 |
KASAHARA AKIHIRO;MIURA AKIRA;SUU HIROSHI |
分类号 |
H04L9/08;G06F21/00;G06F21/12;G06F21/33;G06F21/34;G06F21/62;G06K17/00;G06K19/10;G06Q30/06;G06Q50/00;G06Q50/10;H04L9/10 |
主分类号 |
H04L9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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