发明名称 |
INFORMATION RECORDING/REPRODUCING SYSTEM |
摘要 |
<p>An information recording medium 1 is provided with: a user data recording part 3 which records user data; a random-pattern-information recording part 4 which records random pattern information from a random physical phenomenon; and an authentication data recording part 5 which records, as authentication data, medium identification information created on the basis of the random pattern information detected from the random-pattern-information recording part 4 and a digital signature for each manufacturer with respect to the medium identification information. <IMAGE></p> |
申请公布号 |
EP1069567(A1) |
申请公布日期 |
2001.01.17 |
申请号 |
EP20000902124 |
申请日期 |
2000.02.07 |
申请人 |
SONY CORPORATION |
发明人 |
ASANO, TOMOYUKI;OSAWA, YOSHITOMO |
分类号 |
G06F21/10;G06F21/60;G06F21/62;G06F21/64;G11B20/00;(IPC1-7):G11B20/10 |
主分类号 |
G06F21/10 |
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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