Trust model for a DRM system
    1.
    发明授权
    Trust model for a DRM system 有权
    DRM系统的信任模型

    公开(公告)号:EP1376307B1

    公开(公告)日:2017-11-22

    申请号:EP03013565.1

    申请日:2003-06-13

    IPC分类号: G06F21/10 H04L29/06

    摘要: In a system for distributing and licensing rights-managed digital content, the way in which content is distributed and licensed can be affected by the trust relationships that are established between the various servers that participate in the system. In a typical system, a license server licenses content to particular identities, and an identity server defines those identities by issuing certificates for those identities. The license server issues licenses to identities that have been issued by trusted identity servers. Also, the license server can issue a license on behalf of any entity whose private key it holds. Thus, in one embodiment, the universe of people to whom the license server can issue licenses can be expanded by adding new identity servers to the list of trusted identity servers. In another embodiment, exceptions to the general trust of an identity server can be carved out by creating an exclusion list, which excludes particular identity certificate (e.g., on the basis of e-mail address, domain name, etc.) that have been issued by a trusted identity server. In another embodiment, the universe of content for which the license server can issue licenses can be expanded by providing the license server with the private keys of other license servers.

    Interoperable systems and methods for peer-to-peer service orchestration
    4.
    发明公开
    Interoperable systems and methods for peer-to-peer service orchestration 有权
    互动系统VERFAHRENFÜRDIE PEER-TO-PEER-DIENSTORCHESTRIERUNG

    公开(公告)号:EP2270622A2

    公开(公告)日:2011-01-05

    申请号:EP10180088.6

    申请日:2004-06-07

    IPC分类号: G06F1/00

    摘要: Systems and methods for managing access to a piece of content in a peer-to-peer computing system are disclosed. A client device comprises a user interface (1000; 1210) for receiving a request from a user to access a piece of protected content, a host application (1002; 1200) for recognising a protected content object format and issuing a request to a digital rights management engine (1220) to evaluate digital rights management objects that make up a licence, and a digital rights management engine (1000; 1220) for executing the control program (1324) to determine whether permission to access the protected content should be granted. The licence comprises a set of objects that protect the content and govern its use, including a control object (1320), the control object including a control program (1324). Executing the control program comprises determining whether there exists a set of link objects (1420) representing relationships between nodes that can establish a path to a target node.

    摘要翻译: 公开了用于管理对等计算系统中的一条内容的访问的系统和方法。 客户端设备包括用于接收来自用户访问一条受保护内容的请求的用户界面(1000; 1210),用于识别受保护内容对象格式并向数字权限发出请求的主机应用(1002; 1200) 管理引擎(1220),用于评估组成许可证的数字版权管理对象;以及数字版权管理引擎(1000; 1220),用于执行所述控制程序(1324)以确定是否应允许访问受保护内容。 许可证包括保护内容并管理其使用的一组对象,包括控制对象(1320),控制对象包括控制程序(1324)。 执行控制程序包括确定是否存在表示可以建立到目标节点的路径的节点之间的关系的一组链接对象(1420)。

    LICENSE MOVEMENT DEVICE AND PROGRAM
    5.
    发明公开
    LICENSE MOVEMENT DEVICE AND PROGRAM 有权
    器件,并进行许可运动

    公开(公告)号:EP1577779A4

    公开(公告)日:2009-07-01

    申请号:EP03775955

    申请日:2003-11-28

    摘要: A personal computer PC (10) transmits encrypted user information and encrypted license information in a secure recording medium (MA) to a server (20). The server decrypts the encrypted license information and obtains the license information. After this, the server erases the encrypted license information in the secure recording medium (MA) via the personal computer PC. The server decrypts the encrypted user information in the secure recording medium (MB) and obtains the user information. After this, according to the user information, the server encrypts the license information and writes the encrypted license information obtained into the secure recording medium (MB) via the personal computer PC. Thus, it is possible to move the license information between the two secure media, thereby improving the convenience.

    RIGHTS TRADING SYSTEM
    6.
    发明公开
    RIGHTS TRADING SYSTEM 审中-公开
    系统以维权行动

    公开(公告)号:EP1614105A2

    公开(公告)日:2006-01-11

    申请号:EP04759055.9

    申请日:2004-03-31

    申请人: Verisign, Inc.

    IPC分类号: G11B3/00

    摘要: A system and method for trading licenses that convey rights to digital works. An offer to sell a license is received from a first party, and a bid to buy the license is received from a second party. If the bid meets the requirements of the offer, then a transaction is effectuated wherein the second party acquires the rights signified by the license.

    License consignment method and system for portable device
    9.
    发明公开
    License consignment method and system for portable device 审中-公开
    Lizenzlieferungsverfahren und-systemfürtragbaresGerät

    公开(公告)号:EP2093688A2

    公开(公告)日:2009-08-26

    申请号:EP09153099.8

    申请日:2009-02-18

    IPC分类号: G06F21/00

    摘要: A license consignment method and system for a portable device playing a right-protected content with a license is provided for improving utilization reliability and manageability of a license by enabling a license server to manage the license consigned by the portable device. The method includes selecting a license to be consigned to a license server, transmitting the license server license information corresponding to the selected license, and transmitting, when the license is not downloaded in a certain time, a download trigger message to the portable device.

    摘要翻译: 通过使许可证服务器能够管理由便携式设备委托的许可证,提供用于通过许可证播放受保护内容的便携式设备的许可证委托方法和系统,用于提高许可证的利用可靠性和可管理性。 该方法包括选择要许可服务器的许可证,发送与所选许可证相对应的许可证服务器许可证信息,以及当许可证在特定时间内未下载许可证时,向便携式设备发送下载触发消息。