发明名称 |
DATA PROTECTION SYSTEM, DATA PROTECTION METHOD, AND MEMORY CARD |
摘要 |
This data protection system encrypts and stores data in a memory card, using a double encryption key scheme for encrypting the data with a data key and further encrypting the data key with a user key. This system provides data to a particular host device from the memory card and limits provision of the data to other host devices. The host device includes DPS program that governs control of writing data to, and reading data from the memory card. The memory card includes a first non-volatile memory and a memory controller that controls the first non-volatile memory. DPSA program is implemented in the memory controller that manages ID information for identifying a user capable of decrypting the encrypted data with the user key.
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申请公布号 |
US2009296937(A1) |
申请公布日期 |
2009.12.03 |
申请号 |
US20090472977 |
申请日期 |
2009.05.27 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
SUU HIROSHI;KASAHARA AKIHIRO;MIURA AKIRA |
分类号 |
H04L9/06;G06F12/14 |
主分类号 |
H04L9/06 |
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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