Method and system for registering a DRM client
    4.
    发明授权
    Method and system for registering a DRM client 有权
    用于注册DRM客户端的方法和系统

    公开(公告)号:US09184917B2

    公开(公告)日:2015-11-10

    申请号:US13170261

    申请日:2011-06-28

    IPC分类号: H04L29/06 H04L9/32 G06F21/10

    摘要: A client, method and system for registering a DRM client is disclosed. The method (100) includes the steps of: initiating (110) a registration request via a DRM client with an encrypted registration message including an asymmetric key cryptographic identity, a customer identifier and an application specific information (AINFO) field including a digital signature and a device certificate chain; validating (120) information in the application specific information (AINFO) field by a DRM registration server; and receiving (130) a registration response, the registration response being encrypted and including access information, to obtain content. Advantageously, this method provides an enhanced and reliable means of authentication.

    摘要翻译: 公开了用于注册DRM客户端的客户端,方法和系统。 所述方法(100)包括以下步骤:通过DRM客户端发起(110)注册请求,所述注册请求具有加密的注册消息,所述加密的注册消息包括非对称密钥加密标识,客户标识符和包括数字签名的应用专用信息(AINFO) 设备证书链; 通过DRM注册服务器验证应用程序特定信息(AINFO)字段中的信息(120); 并且接收(130)注册响应,所述注册响应被加密并包括访问信息,以获得内容。 有利地,该方法提供了增强和可靠的认证手段。

    Method and Apparatus for Composing a Digital Rights Management License Format
    5.
    发明申请
    Method and Apparatus for Composing a Digital Rights Management License Format 审中-公开
    构建数字版权管理许可证格式的方法和装置

    公开(公告)号:US20080270311A1

    公开(公告)日:2008-10-30

    申请号:US11843312

    申请日:2007-08-22

    IPC分类号: G06Q10/00

    CPC分类号: G06F21/10 G06Q10/06

    摘要: A process composes a content license for a set of content. The content license has a static portion and a dynamic portion. Further, the process inserts a master key into the static portion. In addition, the process inserts a plurality of content rule sets of values into the dynamic portion and composes a unique content encryption key for each segment of content associated with one of the content rule sets of values as each of the content rule sets of values is sequentially received during recording of the content. The unique content encryption key is based on the master key and at least a subset of the content rule set of values for a corresponding segment of the content. The unique content encryption key is utilized for encryption of each segment of the content to generate a plurality of encrypted content segments for storage on the storage medium.

    摘要翻译: 一个进程组成一组内容的内容许可证。 内容许可证具有静态部分和动态部分。 此外,该过程将主密钥插入静态部分。 此外,该过程将多个内容规则集值集合插入到动态部分中,并且对于与内容规则集值之一相关联的每个内容段,构成唯一内容加密密钥,因为每个内容规则集值是 在记录内容期间顺序地接收。 唯一内容加密密钥基于主密钥以及内容的相应段的内容规则集合的集合的至少一个子集。 独特的内容加密密钥用于加密内容的每个段,以生成用于存储在存储介质上的多个加密的内容段。

    Access control and key management system for streaming media
    7.
    发明授权
    Access control and key management system for streaming media 有权
    流媒体访问控制和密钥管理系统

    公开(公告)号:US08255989B2

    公开(公告)日:2012-08-28

    申请号:US10170951

    申请日:2002-06-12

    IPC分类号: G06F7/04

    摘要: A session rights object and authorization data are used for defining a consumer's access right to a media content stream. The access rights are determined at a caching server remotely located from the consumer rather than locally at the end user site. In a first aspect, in a computing network having a content provider, a key distribution center, a caching server and a client, a method for controlling client access to a real-time data stream from the caching server, is disclosed. The method includes receiving, by the client, a session rights object from a content provider, the session rights object defining access rules for accessing the real-time data stream; receiving, by the client, authorization data from the key distribution center, the authorization data defining the client's access rights to the real-time data stream; forwarding to the caching server the session rights object and the authorization data; comparing, by the caching server, the session rights object with the authorization data to determine client authorization; and if the client is authorized, streaming, by the caching server, the real-time data stream to the client.

    摘要翻译: 会话权限对象和授权数据用于定义消费者对媒体内容流的访问权限。 访问权限在远程位于消费者的缓存服务器上确定,而不是在最终用户站点本地。 在第一方面,在具有内容提供商,密钥分配中心,高速缓存服务器和客户端的计算网络中,公开了一种用于控制来自高速缓存服务器的客户端对实时数据流的访问的方法。 该方法包括从客户端接收来自内容提供商的会话权限对象,会话权限对象定义用于访问实时数据流的访问规则; 由客户端从密钥分配中心接收授权数据,定义客户端对实时数据流的访问权限; 转发到缓存服务器会话权限对象和授权数据; 通过缓存服务器比较会话权限对象与授权数据,以确定客户端授权; 并且如果客户端被授权,则通过缓存服务器流式传输到客户端的实时数据流。

    TEMPORARY REGISTRATION OF DEVICES
    8.
    发明申请
    TEMPORARY REGISTRATION OF DEVICES 有权
    设备临时注册

    公开(公告)号:US20110161660A1

    公开(公告)日:2011-06-30

    申请号:US12648768

    申请日:2009-12-29

    摘要: In a method of temporarily registering a second device with a first device, in which the first device includes a temporary registration mode, the temporary registration mode in the first device is activated, a temporary registration operation in the first device is initiated from the second device, a determination as to whether the second device is authorized to register with the first device is made, and the second device is temporarily registered with the first device in response to a determination that the second device is authorized to register with the first device, in which the temporary registration requires that at least one of the second device and the first device delete information required for the temporary registration following at least one of a determination of a network connection between the first device and the second device and a powering off of at least one of the first device and the second device.

    摘要翻译: 在第一设备暂时注册第二设备的方法中,其中第一设备包括临时注册模式,激活第一设备中的临时注册模式,从第二设备启动第一设备中的临时注册操作 进行关于第二设备是否被授权向第一设备注册的确定,并且响应于第二设备被授权向第一设备注册的确定,第二设备被临时登记到第一设备, 所述暂时注册要求所述第二设备和所述第一设备中的至少一个删除在所述第一设备和所述第二设备之间的网络连接的确定中的至少一个之后临时注册所需的信息,以及至少 第一个设备和第二个设备之一。

    APPARATUS AND METHOD FOR SECURE COMMUNICATION
    9.
    发明申请
    APPARATUS AND METHOD FOR SECURE COMMUNICATION 审中-公开
    用于安全通信的装置和方法

    公开(公告)号:US20130091353A1

    公开(公告)日:2013-04-11

    申请号:US13564643

    申请日:2012-08-01

    IPC分类号: H04L9/32 H04L9/08

    摘要: A method and apparatus are for transferring a client device certificate and an associated encrypted client private key to a client device from a secure device. The secure device receives over a secure connection, a secure device certificate, a secure device private key and a plurality of client device certificates. Each client certificate is associated with a bootstrap public key but is not assigned to any particular client device. A plurality of encrypted client private keys is also received. Each of the encrypted client private keys comprises a client private key associated with one of the client device certificates encrypted with the bootstrap public key. The plurality of client device certificates is stored. The encrypted client private keys are stored in double encrypted protected form. A client device certificate and an associated encrypted client private key are transferred to a client device that has successfully registered with the secure device.

    摘要翻译: 一种方法和装置用于将客户端设备证书和相关联的加密的客户端私钥从安全设备传送到客户端设备。 安全设备通过安全连接,安全设备证书,安全设备私钥和多个客户端设备证书接收。 每个客户端证书与引导公钥相关联,但不分配给任何特定的客户端设备。 还接收多个加密的客户端私钥。 每个加密的客户端专用密钥包括与用引导公钥加密的客户端设备证书之一相关联的客户端专用密钥。 存储多个客户端设备证书。 加密的客户端私钥以双加密保护形式存储。 客户端设备证书和相关联的加密客户端私钥被传送到已经成功地向安全设备注册的客户端设备。

    Method and Apparatus for Handling of Content that includes a Mix of CCI Segments
    10.
    发明申请
    Method and Apparatus for Handling of Content that includes a Mix of CCI Segments 审中-公开
    处理含有CCI段的混合物的内容的方法和装置

    公开(公告)号:US20080271153A1

    公开(公告)日:2008-10-30

    申请号:US11950698

    申请日:2007-12-05

    IPC分类号: G06F21/00

    CPC分类号: G06F21/10

    摘要: A process is provided. The process stores, on a first device, each segment of a set of content having corresponding copy control information. Further, the process receives, from a second device, a request for a copy of the set of content. In addition, the process analyzes a list of the copy control information associated with each segment of the set of content. The process also establishes a restriction indicator, based on the request for the copy of the set of content, for one or more segments of the set of content having a corresponding copy control information value. Finally, the process provides to the second device, the content, the list of copy control information, and the restriction indicator for the one or more segments.

    摘要翻译: 提供了一个过程。 该过程在第一设备上存储具有相应复制控制信息的一组内容的每个段。 此外,该过程从第二设备接收对该组内容的副本的请求。 此外,该过程分析与该组内容的每个片段相关联的复制控制信息的列表。 该过程还基于对该组内容的复制的请求,针对该组内容的一个或多个段具有相应的复制控制信息值建立限制指示符。 最后,该过程向第二设备提供一个或多个段的内容,复制控制信息列表和限制指示符。