CONTENT MANAGEMENT SYSTEM, MANAGEMENT SERVER, MEMORY MEDIA DEVICE AND CONTENT MANAGEMENT METHOD
    3.
    发明申请
    CONTENT MANAGEMENT SYSTEM, MANAGEMENT SERVER, MEMORY MEDIA DEVICE AND CONTENT MANAGEMENT METHOD 有权
    内容管理系统,管理服务器,内存媒体设备和内容管理方法

    公开(公告)号:US20130283357A1

    公开(公告)日:2013-10-24

    申请号:US13994960

    申请日:2012-04-26

    IPC分类号: H04L29/06

    摘要: A terminal device 102 includes a transmission/reception unit 306 that transmits, to a server device 101, information necessary for judgment as to whether to permit use of content. The server device 101 includes: a judgment unit 204 that judges whether to permit the terminal device 102 to use the content, based on terminal device management information set by a content provider, and the information necessary for the judgment and received from the terminal device 102; a notification data storage unit 203 that stores notifications to be presented to a user of the terminal device 102; and a transmission/reception unit 205 that transmits either information necessary for use of the content or one of the notifications according to a result of the judgment by the judgment unit 204.

    摘要翻译: 终端设备102包括发送/接收单元306,其向服务器设备101发送关于是否允许使用内容的判断所需的信息。 服务器装置101包括:判断部204,根据由内容提供者设定的终端装置管理信息,判断终端装置102是否允许使用内容;判断部204判定是否从终端装置102接收到的判断 ; 存储要呈现给终端装置102的用户的通知的通知数据存储单元203; 以及发送/接收单元205,其根据判断单元204的判断结果发送使用内容所需的信息或通知中的一个。

    RECORDING MEDIUM APPARATUS AND CONTROLLER
    4.
    发明申请
    RECORDING MEDIUM APPARATUS AND CONTROLLER 有权
    记录介质和控制器

    公开(公告)号:US20130145481A1

    公开(公告)日:2013-06-06

    申请号:US13817045

    申请日:2012-04-18

    IPC分类号: G06F21/60

    摘要: A storage unit 601g of a recording medium device 600g stores a content and a revocation list. The revocation list includes a revocation identifier that is associated with the content and identifies a revoked public key certificate allocated to an apparatus related to use of the content. A controller 602g of the recording medium device 600g is provided with an acquisition unit 621g that acquires, from an apparatus 300g, an acquisition request for the content and an apparatus identifier identifying a public key certificate of the apparatus 300g; a judgment unit 622g that judges whether the apparatus identifier matches a revocation identifier; and a control unit 623g that controls to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier match.

    摘要翻译: 记录介质装置600g的存储单元601g存储内容和撤销列表。 撤销列表包括与内容相关联的撤销标识符,并且识别分配给与使用该内容相关的设备的已撤销公钥证书。 记录介质装置600g的控制器602g设置有从装置300g获取内容的获取请求和识别装置300g的公钥证书的装置标识符的获取单元621g; 判断单元622g,其判断设备标识符是否与撤销标识符匹配; 以及控制单元623g,其控制在设备标识符和撤销标识符匹配时禁止向设备输出内容。

    Content playback device
    7.
    发明授权
    Content playback device 有权
    内容播放设备

    公开(公告)号:US07933409B2

    公开(公告)日:2011-04-26

    申请号:US10590909

    申请日:2005-03-01

    IPC分类号: H04N7/167 H04L9/00 G06F11/30

    摘要: To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.

    摘要翻译: 为了提供能够根据DRM保护内容的内容回放设备,当解密记录在记录介质上的加密内容并播放解密的内容时。 如果密钥生成信息是“00”,则密钥控制单元104依次连接解密的媒体密钥和内容信息,并且向连接结果应用单向函数以生成内容密钥。 如果密钥生成信息是“10”,则密钥控制单元104设置权限密钥作为内容密钥。 如果密钥生成信息为“01”,则密钥控制单元104依次连接解密的媒体密钥和权限密钥,并将单向功能应用于连接结果以生成内容密钥。

    Content playback device
    8.
    发明授权
    Content playback device 有权
    内容播放设备

    公开(公告)号:US08116452B2

    公开(公告)日:2012-02-14

    申请号:US13009459

    申请日:2011-01-19

    IPC分类号: H04N7/167 H04L9/00 G06F11/30

    摘要: To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.

    摘要翻译: 为了提供能够根据DRM保护内容的内容回放设备,当解密记录在记录介质上的加密内容并播放解密的内容时。 如果密钥生成信息是“00”,则密钥控制单元104依次连接解密的媒体密钥和内容信息,并且向连接结果应用单向函数以生成内容密钥。 如果密钥生成信息是“10”,则密钥控制单元104设置权限密钥作为内容密钥。 如果密钥生成信息为“01”,则密钥控制单元104依次连接解密的媒体密钥和权限密钥,并将单向功能应用于连接结果以生成内容密钥。

    Content playback device
    9.
    发明申请
    Content playback device 有权
    内容播放设备

    公开(公告)号:US20070198424A1

    公开(公告)日:2007-08-23

    申请号:US10590909

    申请日:2005-03-01

    IPC分类号: H04L9/00

    摘要: To provide a content playback device capable of protecting content according to DRM, when decrypting encrypted content recorded on a recording medium and playing the decrypted content. If key generation information is “00”, a key control unit 104 concatenates a decrypted media key and content information in this order, and applies a one-way function to the concatenation result to generate a content key. If the key generation information is “10”, the key control unit 104 sets a rights key as the content key. If the key generation information is “01”, the key control unit 104 concatenates the decrypted media key and the rights key in this order, and applies a one-way function to the concatenation result to generate the content key.

    摘要翻译: 为了提供能够根据DRM保护内容的内容回放设备,当解密记录在记录介质上的加密内容并播放解密的内容时。 如果密钥生成信息是“00”,则密钥控制单元104依次连接解密的媒体密钥和内容信息,并且向连接结果应用单向函数以生成内容密钥。 如果密钥生成信息是“10”,则密钥控制单元104设置权限密钥作为内容密钥。 如果密钥生成信息为“01”,则密钥控制单元104依次连接解密的媒体密钥和权限密钥,并将单向功能应用于连接结果以生成内容密钥。