发明名称 |
Authentication Method, Host Computer and Recording Medium |
摘要 |
According to one embodiment, a host computer updates the media key block MKB in a first updatable memory device in the case where the version number of the media key block MKB read from a recording medium is newer than that of the media key block MKB in the first updatable memory device. The host computer generates a medium unique key Kmu based on a media key Km calculated from the media key block MKB read from the recording medium and a media ID read from the recording medium. The host computer executes the authentication and key exchange AKE process with the recording medium based on the medium unique key Kmu.
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申请公布号 |
US2012272065(A1) |
申请公布日期 |
2012.10.25 |
申请号 |
US201213535054 |
申请日期 |
2012.06.27 |
申请人 |
MATSUKAWA SHINICHI;SATO JUN;WATANABE KEIKO |
发明人 |
MATSUKAWA SHINICHI;SATO JUN;WATANABE KEIKO |
分类号 |
H04L9/32 |
主分类号 |
H04L9/32 |
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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