发明名称 |
Data processing apparatus |
摘要 |
A data processing apparatus is provided, which detects falsification of software to data and rewriting of the data. The data processing apparatus according to an embodiment of the present invention comprises a security unit which has an encryption circuit for decrypting an encrypted signal including secrecy data. The security unit includes a compression circuit which compresses an access signal used in accessing the security unit and outputs the compression result, and a comparison circuit which compares the compression result outputted from the compression circuit with a previously-calculated expectation value of the compression result of the access signal. |
申请公布号 |
US8140858(B2) |
申请公布日期 |
2012.03.20 |
申请号 |
US20090401427 |
申请日期 |
2009.03.10 |
申请人 |
TSURUTA HIROKAZU;YAMAGUCHI ATSUO;MIYAUCHI SHIGENORI;RENESAS ELECTRONICS CORPORATION |
发明人 |
TSURUTA HIROKAZU;YAMAGUCHI ATSUO;MIYAUCHI SHIGENORI |
分类号 |
G06F21/00 |
主分类号 |
G06F21/00 |
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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