发明名称 |
APPARATUS, METHOD, AND PROGRAM PRODUCT FOR RECORDING AND REPRODUCING CONTENTS |
摘要 |
A contents recording and reproducing apparatus performs a record and a reproduce of a recording medium, in which the recording medium records a title key file registering therein at least one title key which encrypts each of plural title contents corresponding to a program video or sound, and title contents encrypted by the title key. The contents recording and reproducing apparatus includes an TKF initializing unit 141 which generates a title key file and records it in the recording medium, a random number generating unit 111 which generates a random number corresponding to each of the plural title key files, and a recording unit 113 which records a plurality of title key files in a DVD medium 140. The TKF initializing unit 141 registers the random number, the TKF random number corresponding to the title key file, and an encryption title key. |
申请公布号 |
EP1897091(A1) |
申请公布日期 |
2008.03.12 |
申请号 |
EP20060780774 |
申请日期 |
2006.06.28 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;TOSHIBA SOLUTIONS CORPORATION |
发明人 |
ISOZAKI, HIROSHI;MATSUKAWA, SHINICHI;ISHIHARA, ATSUSHI;KATO, TAKU |
分类号 |
G11B20/00;G06F21/10;G06F21/60;G06F21/62;G09C1/00;G11B20/10;H04L9/08 |
主分类号 |
G11B20/00 |
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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