Information input/output system, key management device, and user device
    54.
    发明授权
    Information input/output system, key management device, and user device 有权
    信息输入/输出系统,密钥管理设备和用户设备

    公开(公告)号:US07647646B2

    公开(公告)日:2010-01-12

    申请号:US10414002

    申请日:2003-04-16

    IPC分类号: H04L9/14

    摘要: In an information input/output system, a user device inputs and outputs information to and from external sources including a key management device. The system includes the key management device that securely outputs invalid-device information specifying an invalid device unit that has been made invalid for use, and the user device that includes an input/output unit and a host unit. Via the input/output unit, input and output of information is enabled between the host unit and the external sources. The host unit securely receives, via the input/output unit, the invalid-device information outputted by the key management device and judges whether or not the input/output unit is an invalid device unit by referring to the received invalid-device information. When judging, that the input/output unit is an invalid device, the host unit thereafter prohibits input and output via the input/output unit. Due to this construction, the host unit can correctly judge whether or not the input/output unit is an invalid device unit.

    摘要翻译: 在信息输入/输出系统中,用户设备向外部来源(包括密钥管理设备)输入和输出信息。 系统包括密钥管理装置,其安全地输出指定使无效的无效装置单元的无效装置信息和包括输入/​​输出单元和主机单元的用户装置。 通过输入/输出单元,可以在主机单元和外部源之间启用信息的输入和输出。 主机通过输入/输出单元安全地接收由密钥管理装置输出的无效装置信息,并通过参考接收到的无效装置信息判断输入/输出装置是否是无效的装置单元。 当判断输入/输出单元是无效装置时,主机单元此后禁止通过输入/输出单元的输入和输出。 由于这种结构,主机单元可以正确地判断输入/输出单元是否是无效的设备单元。

    Recording Medium, and Contents Reproduction System
    55.
    发明申请
    Recording Medium, and Contents Reproduction System 审中-公开
    记录媒体和内容再现系统

    公开(公告)号:US20080168276A1

    公开(公告)日:2008-07-10

    申请号:US11629173

    申请日:2005-05-23

    IPC分类号: H04L9/06

    摘要: A recording medium provided with a lead-in area and a data recording area, wherein position information indicating the position of the key information is stored in the lead-in area and key information to be used for managing the copyrights of content is recorded in the data recording area. As a result, a read device can acquire the key information in the data recording area by referring to the position information in the lead-in area, even if the read device lacks a way of handling a file system to be used in the data recording area. Moreover, software for reproduction of the content can acquire the key information in the data recording area using the file system.

    摘要翻译: 具有导入区域和数据记录区域的记录介质,其中指示密钥信息的位置的位置信息被存储在导入区域中,并且用于管理内容的版权的密钥信息被记录在 数据记录区。 结果,读取装置可以通过参考导入区域中的位置信息来获取数据记录区域中的密钥信息,即使读取装置缺少处理要在数据记录中使用的文件系统的方式 区。 此外,用于再现内容的软件可以使用文件系统获取数据记录区域中的密钥信息。

    Recording Device and Recording Method
    56.
    发明申请
    Recording Device and Recording Method 审中-公开
    录音设备和录音方式

    公开(公告)号:US20080072072A1

    公开(公告)日:2008-03-20

    申请号:US11570072

    申请日:2005-06-05

    IPC分类号: G06F12/14

    摘要: To prevent the user from moving a content on a bound recording medium to another storage medium more than the maximum number of times permitted by its copyright holder.A recorder includes: a bound recording section for bound-recording at least one data file and at least one management information file for a content; a control section for giving an instruction to move the content to a storage medium; and a drive for recording the content's data on the storage medium. The management information file includes access information for accessing the data file. In response to the instruction to move, the bound recording section reads the data file of the content in accordance with the access information and outputs the content's data, the drive records the content's data on the storage medium, and the control section makes the access information unavailable.

    摘要翻译: 为了防止用户将绑定的记录介质上的内容移动到其版权所有者允许的最大次数以上。 记录器包括:用于限制记录至少一个数据文件的绑定记录部分和用于内容的至少一个管理信息文件; 用于给出将内容移动到存储介质的指令的控制部分; 以及用于在存储介质上记录内容的数据的驱动器。 管理信息文件包括访问数据文件的访问信息。 响应于移动指令,绑定记录部分根据访问信息读取内容的数据文件并输出内容数据,驱动器将内容的数据记录在存储介质上,并且控制部分使访问信息 不可用

    Copyright protective device and method
    57.
    发明申请
    Copyright protective device and method 审中-公开
    版权保护装置及方法

    公开(公告)号:US20080056492A1

    公开(公告)日:2008-03-06

    申请号:US11907773

    申请日:2007-10-17

    IPC分类号: H04L9/00

    摘要: A key generation section 10 generates a key K to be used for cryptographic processing, based on an encrypted key data group EK. A key information retention/selection section 20 retains Lhe generated key and an intermediate key which was obtained when generating the key, and outputs the retained key information in accordance with selection information SEL. The key information is retained, e.g., in a storage circuit within the integrated circuitry, in a form which is not recognizable as a key. A content encryption/decryption section 30 restrains the cryptographic processing result DO from being outputted during key generation. When a heading pattern is detected during the cryptographic processing of an input signal DI, a reset/input enable signal generation circuit 60 switches an input enable signal IE to a disabled state, and outputs a reset signal RST after Lhe cryptographic processing has been completed.

    摘要翻译: 密钥生成部10基于加密密钥数据组EK生成用于密码处理的密钥K. 密钥信息保留/选择部分20保留产生密钥的Lhe生成密钥和中间密钥,并根据选择信息SEL输出保留的密钥信息。 关键信息例如在集成电路内的存储电路中以不能被识别为密钥的形式被保留。 内容加密/解密部分30限制在密钥生成期间输出密码处理结果DO。 当在输入信号DI的加密处理期间检测到标题图案时,复位/输入使能信号产生电路60将输入使能信号IE切换到禁用状态,并且在加密处理完成之后输出复位信号RST。