发明申请
- 专利标题： Semiconductor memory card that records contents for trial and purchase, and recording apparatus, recording and reproducing apparatus, and sales method for the same
- 专利标题（中）： 记录用于试购的内容的半导体存储卡，记录装置，记录再现装置及其销售方法
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申请号： US11072408申请日： 2005-03-07
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公开(公告)号： US20050160053A1公开(公告)日： 2005-07-21
- 发明人: Ryuichi Okamoto , Mitsuhiro Inoue , Hideki Matsushima , Masayuki Kozuka
- 申请人： Ryuichi Okamoto , Mitsuhiro Inoue , Hideki Matsushima , Masayuki Kozuka
- 主分类号： G06F12/14
- IPC分类号： G06F12/14 ; G06F21/00 ; G06F21/24 ; G06K17/00 ; G06K19/00 ; G06K19/10 ; G06Q20/12 ; G06Q20/34 ; G06Q20/36 ; G06Q20/38 ; G06Q20/40 ; G06Q30/06 ; G07F7/10 ; G07F17/16 ; G11B20/00 ; H04L9/08 ; H04L9/10 ; H04L9/32 ; H04L9/00
摘要：
A recording medium which allows consumers to access and purchase content while protecting the copyright of the content. The recording medium includes a secure data area and a non-secure data area. The secure data area is accessible by an apparatus whose authenticity is verified, and the non-secure area is accessible by the apparatus regardless of such verification. The secure data area stores a first content key. The non-secure data area stores first data and second data which can be decrypted. The first data includes a first encrypted content which is generated by encrypting a first content with the first content key, and the second data includes a second encrypted content which is generated by encrypting a second content with a second content key, where the first and second contents are related to each other.
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