发明名称 Data recording apparatus and method of identifying data
摘要 The data recording apparatus is capable of writing an identification datum, which identifies that data written in a recording medium are encrypted, in the recording medium so as to know if the recorded data are encrypted or not when they are read. In the apparatus, a control unit stores data sent from outside in a storing unit, encrypts the data stored in the storing unit and/or data of a system area of the recording medium by a encrypting unit, on the basis of a password, so as to make the encrypted data and/or the encrypted system area data, writes the encrypted data and/or the encrypted system area data in the recording medium by a writing unit, and writes the identification datum in the recording medium by the writing unit.
申请公布号 US2004215970(A1) 申请公布日期 2004.10.28
申请号 US20040828289 申请日期 2004.04.21
申请人 HANDA YUJI;TAKAHASHI KAZUKI 发明人 HANDA YUJI;TAKAHASHI KAZUKI
分类号 G06F12/14;G06F21/00;G06F21/24;G09C1/00;G11B20/00;G11B20/10;G11B20/12;H04L9/00;H04L9/14;H04L9/32;(IPC1-7):H04K1/00 主分类号 G06F12/14
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