发明名称 |
COPY PROTECTION SYSTEM AND METHOD |
摘要 |
<p>The copy protection system is a combination of a signature method and a coding or encryption method that uses a variable key. The data set is written only onto a predetermined device and it is released to a host for reading and deciphering only upon proper authorization. Copying of the encrypted data set is entirely useless, because the dataset is signed with a unique identification (e.g. the serial number) of the device.</p> |
申请公布号 |
EP1123531(A1) |
申请公布日期 |
2001.08.16 |
申请号 |
EP19990950644 |
申请日期 |
1999.10.06 |
申请人 |
INFINEON TECHNOLOGIES AG |
发明人 |
SOEHNE, PETER;SCHEPERS, JOERG;ZAIG, DIETMAR;SMOLA, MICHAEL |
分类号 |
G06F12/14;G06F1/00;G06F21/00;G06F21/24;G11B20/00;H04L9/32;(IPC1-7):G06F1/00 |
主分类号 |
G06F12/14 |
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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