发明名称 INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
摘要 The present invention enables execution of predetermined content usage control processing without depending on a framework of a content playback program (application). Upon content playback processing, a flag which sets information of determination as to whether or not it is necessary to refer to a management information file such as a token or a usage control information file associated with content is recorded in a content file including encrypted content to be stored in a recording medium. Upon the content playback processing, a playback apparatus acquires the content file including the encrypted content stored in the recording medium, refers to a flag recorded in the content file and determines whether or not it is necessary to refer to the management information file based on a setting of the flag. When the setting of the flag indicates that it is necessary to refer to the management information file, it is possible to select a correct management information file based on a content file identifier as a search key.
申请公布号 US2014090083(A1) 申请公布日期 2014.03.27
申请号 US201214117948 申请日期 2012.04.13
申请人 KOBAYASHI YOSHIYUKI;KATO MOTOKI;KUNO HIROSHI;HAYASHI TAKAMICHI;SONY CORPORATION 发明人 KOBAYASHI YOSHIYUKI;KATO MOTOKI;KUNO HIROSHI;HAYASHI TAKAMICHI
分类号 G06F21/10 主分类号 G06F21/10
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