Information recording medium, information processing apparatus, information processing method, and computer program
    1.
    发明授权
    Information recording medium, information processing apparatus, information processing method, and computer program 失效
    信息记录介质,信息处理装置,信息处理方法和计算机程序

    公开(公告)号:US07376626B2

    公开(公告)日:2008-05-20

    申请号:US10495088

    申请日:2003-09-11

    IPC分类号: G06Q99/00

    摘要: There are provided an information recording medium, and an information processing apparatus and method by which content usage in compliance with copyright protection is made possible in information processing devices such as a CD player and a PC. In the information recording medium, a first data storage area on which a copying prevention process is performed, and a second data storage area in which is stored an encrypted content file containing encrypted content, and encrypted key data such that key data for use in a decryption process is encrypted and which can be decrypted only in a device having a license are set. It becomes possible to play back the recorded content of a first data recording field in a playback device such as a CD player, and even in an information processing device, such as a PC, it is possible to decrypt and play back encrypted content of a second data recording field under the condition of obtaining a license.

    摘要翻译: 提供了一种信息记录介质,以及在诸如CD播放器和PC之类的信息处理设备中使得符合版权保护的内容使用成为可能的信息处理设备和方法。 在信息记录介质中,执行复制防止处理的第一数据存储区域和存储有加密内容的加密内容文件的第二数据存储区域和加密密钥数据,使得用于 解密过程被加密,并且只能在具有许可证的设备中被解密。 可以在诸如CD播放器的回放设备中甚至在诸如PC的信息处理设备中回放第一数据记录字段的记录内容,可以解密和重放加密的内容 第二个数据记录领域获得许可证的条件。