Method for etching and secure distribution of digital data, access device and writer
    33.
    发明授权
    Method for etching and secure distribution of digital data, access device and writer 失效
    数字数据蚀刻和安全分配方法,访问设备和写入器

    公开(公告)号:US08724807B2

    公开(公告)日:2014-05-13

    申请号:US12083279

    申请日:2006-10-17

    IPC分类号: G06F21/00 H04K1/00

    摘要: The invention relates to a method of receiving and securely recording digital data comprising a step for recording said digital data on a secured disk by a recorder/receiver belonging to a determined secured domain comprising several equipment items and defined by an identifier, a step for recording on the secured disk the identifier of the domain of the recorder/receiver to define this domain as the only domain in which the reproduction/copying of the multimedia content is authorized, wherein it comprises a prior step for recovering a disk key from the secured disk, and in that the domain identifier is encrypted by said disk key and the digital data is scrambled by title keys, said title keys being encrypted by said disk key. The invention also relates to a method of securely distributing digital data, an access device and a recorder/receiver.

    摘要翻译: 本发明涉及一种接收和安全地记录数字数据的方法,包括用于通过属于确定的安全域的记录器/接收机在安全盘上记录所述数字数据的步骤,所述确定的安全域包括若干设备项目并由标识符定义,记录步骤 在安全盘上,记录器/接收器的域的标识符将该域定义为授权多媒体内容的再现/复制的唯一域,其中包括用于从安全盘恢复磁盘密钥的先前步骤 并且通过所述盘密钥加密域标识符,并且数字数据被标题密钥加扰,所述标题密钥由所述盘密钥加密。 本发明还涉及一种安全地分发数字数据,接入设备和记录器/接收机的方法。

    Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus
    34.
    发明授权
    Information recording method and apparatus, information recording medium, and information recording medium manufacturing method and apparatus 失效
    信息记录方法和装置,信息记录介质和信息记录介质的制造方法和装置

    公开(公告)号:US08526281B2

    公开(公告)日:2013-09-03

    申请号:US12677724

    申请日:2008-04-21

    申请人: Kazuhiko Nakane

    发明人: Kazuhiko Nakane

    IPC分类号: G11B11/00

    摘要: Content information (CI) is recorded, and then control information including an encryption key is recorded. The area in which the content information (CI) is written is shifted with respect to the user area (UIA) in a playback-only disc. The control information (SI) is written with an identical shift. As a result of the shift, content information (CI) or dummy data (DD) is written in the area (SIA) in which control information is recorded in a playback-only disc. Information indicating the value of the shift is selected randomly and deleted when the disc is removed from the recording apparatus. When encrypted content is downloaded and recorded on a recordable optical disc, the complete content can be recorded on the disc correctly just once.

    摘要翻译: 记录内容信息(CI),然后记录包括加密密钥的控制信息。 写入内容信息(CI)的区域相对于仅在回放盘中的用户区域(UIA)移动。 控制信息(SI)以相同的移位写入。 作为移位的结果,将内容信息(CI)或虚拟数据(DD)写入其中控制信息被记录在只播放盘中的区域(SIA)中。 随机选择指示移位值的信息,并且当从记录装置中取出盘时被删除。 当加密的内容被下载并记录在可记录光盘上时,完整的内容可以被正确记录在光盘上一次。