METHOD OF MANAGING GROUP KEY FOR SECURE MULTICAST COMMUNICATION
    1.
    发明申请
    METHOD OF MANAGING GROUP KEY FOR SECURE MULTICAST COMMUNICATION 审中-公开
    用于安全多播通信的组密钥管理方法

    公开(公告)号:US20110249817A1

    公开(公告)日:2011-10-13

    申请号:US13133920

    申请日:2009-05-13

    IPC分类号: H04L9/08

    摘要: A group key management method for secure multicast communication includes: creating a tree having a root node, internal nodes and leaf nodes to manage group keys of a receiver group by a group key management server; generating user keys of all nodes excluding the root node in the tree on the basis of Chinese Remainder Theorem; assigning the leaf nodes of the tree to users of the receiver group; and sending the user keys of the leaf nodes to the corresponding users for group key management. Further, the group key management method for secure multicast communication includes generating group keys of all non-leaf nodes; computing a solution of congruence equations based on the user key and group key by using Chinese Remainder Theorem for each non-leaf node; and multicasting a group key update message to each user of the respective leaf nodes.

    摘要翻译: 用于安全组播通信的组密钥管理方法包括:创建具有根节点,内部节点和叶节点的树,以通过组密钥管理服务器管理接收者组的组密钥; 根据中国剩余定理生成树中除根节点之外的所有节点的用户密钥; 将树的叶节点分配给接收者组的用户; 并将叶节点的用户密钥发送给相应的用户进行组密钥管理。 此外,用于安全组播通信的组密钥管理方法包括生成所有非叶节点的组密钥; 通过对每个非叶节点使用中国剩余定理,基于用户密钥和群密钥计算一致等式的解; 以及将组密钥更新消息多播到各个叶节点的每个用户。

    APPARATUS AND METHOD FOR SHARING CONTENT BETWEEN DEVICES BY USING DOMAIN DRM
    3.
    发明申请
    APPARATUS AND METHOD FOR SHARING CONTENT BETWEEN DEVICES BY USING DOMAIN DRM 审中-公开
    使用域DRM共享设备内容内容的装置和方法

    公开(公告)号:US20100138928A1

    公开(公告)日:2010-06-03

    申请号:US12537550

    申请日:2009-08-07

    IPC分类号: G06F21/00 G06F15/173

    CPC分类号: G06F21/10

    摘要: An apparatus for sharing content between devices by using a domain digital rights management (DRM) includes: a domain management unit for performing management of a domain within a specific area and registration of users and user devices; a user management unit for managing information about the users of the domain registered by the domain management unit; and a device management unit for managing domain clients of the domain registered by the domain management unit. The apparatus further includes a DRM management unit that has DRM information that supports the domain created through the domain management unit and update information about each DRM, and relays such that DRM content stored in each domain client is converted into domain DRM content and domain DRM license.

    摘要翻译: 一种用于通过使用域数字版权管理(DRM)在设备之间共享内容的装置包括:域管理单元,用于执行特定区域内的域的管理以及用户和用户设备的注册; 用于管理由域管理单元注册的域的用户的信息的用户管理单元; 以及用于管理域管理单元注册的域的域客户端的设备管理单元。 该装置还包括具有DRM信息的DRM管理单元,该DRM信息支持通过域管理单元创建的域并更新关于每个DRM的信息,并且中继,使得存储在每个域客户端中的DRM内容被转换成域DRM内容和域DRM许可 。

    APPARATUS AND METHOD FOR DIGITAL HOME DOMAIN MANAGEMENT
    4.
    发明申请
    APPARATUS AND METHOD FOR DIGITAL HOME DOMAIN MANAGEMENT 审中-公开
    数字家庭管理的设备和方法

    公开(公告)号:US20100161781A1

    公开(公告)日:2010-06-24

    申请号:US12536846

    申请日:2009-08-06

    IPC分类号: G06F15/173

    摘要: An apparatus for digital home domain management includes a home domain server which manages in one user domain all user terminals within a home group and provides each user terminal with a domain license in contents; and a DRM coupler which provides the contents and domain licenses converted to conform to a DRM type loaded in user terminals if contents sharing is requested among user terminals loaded with different DRMs within the home group.

    摘要翻译: 一种用于数字家庭域管理的装置包括一个归属域服务器,其在一个用户域中管理家庭组内的所有用户终端,并为每个用户终端提供内容的域许可; 以及如果在家庭组内加载了不同DRM的用户终端之间请求内容共享,则提供转换成符合加载在用户终端中的DRM类型的内容和域许可的DRM耦合器。

    METHOD FOR EXTRACTING FINGERPRINT OF PUBLICATION, APPARATUS FOR EXTRACTING FINGERPRINT OF PUBLICATION, SYSTEM FOR IDENTIFYING PUBLICATION USING FINGERPRINT, AND METHOD FOR IDENTIFYING PUBLICATION USING FINGERPRINT
    6.
    发明申请
    METHOD FOR EXTRACTING FINGERPRINT OF PUBLICATION, APPARATUS FOR EXTRACTING FINGERPRINT OF PUBLICATION, SYSTEM FOR IDENTIFYING PUBLICATION USING FINGERPRINT, AND METHOD FOR IDENTIFYING PUBLICATION USING FINGERPRINT 审中-公开
    提取出版指纹的方法,提取出版指纹的装置,使用指纹识别出版物的系统以及使用指纹识别出版物的方法

    公开(公告)号:US20130290330A1

    公开(公告)日:2013-10-31

    申请号:US13879398

    申请日:2011-10-13

    IPC分类号: G06F17/30

    CPC分类号: G06F16/5846

    摘要: Disclosed are a method and an apparatus for extracting a fingerprint of a publication. And disclosed are a system and a method for identifying a publication using a fingerprint. The system for identifying the publication using the fingerprint includes: a fingerprint extraction unit for extracting fingerprints for collected query publications to identify the copyrights infringement; a fingerprint query unit for querying fingerprints of original publications corresponding from the fingerprint extraction unit; a DBMS for storing the fingerprints extracted from the original publications and additional information from the original publications, and providing a search result candidate group which is composed of fingerprints of at least one of the original publications corresponding to the queries of the fingerprint query unit; and a candidate group verification unit for determining copyright infringement for the query publications by verifying the search result candidate group provided from the DBMS.

    摘要翻译: 公开了一种用于提取出版物的指纹的方法和装置。 并且公开了一种用于使用指纹识别出版物的系统和方法。 用于使用指纹识别出版物的系统包括:指纹提取单元,用于提取收集的查询出版物的指纹以识别版权侵权; 指纹查询单元,用于查询从指纹提取单元对应的原始出版物的指纹; 用于存储从原始出版物提取的指纹的DBMS和来自原始出版物的附加信息,以及提供由对应于指纹查询单元的查询的至少一个原始出版物的指纹组成的搜索结果候选组; 以及候选组验证单元,用于通过验证从DBMS提供的搜索结果候选组来确定查询出版物的侵权。