METHOD AND APPARATUS FOR INSURING DIGITAL CONTENT
    2.
    发明申请
    METHOD AND APPARATUS FOR INSURING DIGITAL CONTENT 审中-公开
    保护数字内容的方法和装置

    公开(公告)号:US20090259496A1

    公开(公告)日:2009-10-15

    申请号:US12101950

    申请日:2008-04-11

    IPC分类号: G06Q40/00

    CPC分类号: G06Q30/00 G06Q40/00 G06Q40/08

    摘要: Embodiments of the invention generally provide a method and apparatus for insuring digital content. One embodiment of a method for insuring digital content includes receiving a request to insure a specific instance of digital content and associating insurance with the instance of digital content, such that the instance of digital content can be restored to an owner of the instance of digital content in an event that the instance of digital content becomes unusable. At least one of: a copy of the at least one instance of digital content, metadata related to the at least one instance of digital content, and data related to the insurance is stored in at least one database.

    摘要翻译: 本发明的实施例通常提供用于确保数字内容的方法和装置。 用于确保数字内容的方法的一个实施例包括接收确保数字内容的特定实例并将保险与数字内容的实例相关联的请求,使得可以将数字内容的实例恢复为数字内容的实例的所有者 在数字内容的实例变得不可用的情况下。 至少一个:数字内容的至少一个实例的副本,与数字内容的至少一个实例有关的元数据,以及与保险相关的数据被存储在至少一个数据库中。

    Method and Apparatus for Composing a Digital Rights Management License Format
    4.
    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。

    APPARATUS AND METHOD FOR SECURE COMMUNICATION
    6.
    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。

    SERVICE KEY DELIVERY IN A CONDITIONAL ACCESS SYSTEM
    7.
    发明申请
    SERVICE KEY DELIVERY IN A CONDITIONAL ACCESS SYSTEM 审中-公开
    一个条件访问系统中的服务键传送

    公开(公告)号:US20120131333A1

    公开(公告)日:2012-05-24

    申请号:US12952792

    申请日:2010-11-23

    IPC分类号: H04L9/00

    摘要: A method is provided by which a client device obtains authorized access to content delivered over a content delivery network. The method includes receiving an entitlement management message (EMM). The EMM includes at least one cryptographic key and a device registration server certificate ID (DRSCID) identifying a currently valid device registration server (DRS) public key certificate. The DRSCID obtained from the EMM is compared to a stored DRSCID value. An entitlement control message (ECM), which includes an encrypted traffic key for decrypting content, is received. If the DRSCID obtained from the EMM is determined to match the stored DRSCID, the traffic key is decrypted with the cryptographic key or a key derived from the cryptographic key to thereby access the content.

    摘要翻译: 提供一种方法,通过该方法,客户端设备获得对通过内容传送网络传送的内容的授权访问。 该方法包括接收授权管理消息(EMM)。 EMM包括标识当前有效的设备注册服务器(DRS)公钥证书的至少一个加密密钥和设备注册服务器证书ID(DRSCID)。 将从EMM获得的DRSCID与存储的DRSCID值进行比较。 接收包括用于解密内容的加密业务密钥的授权控制消息(ECM)。 如果确定从EMM获得的DRSCID与存储的DRSCID匹配,则使用加密密钥或从加密密钥导出的密钥对流量密钥进行解密,从而访问内容。

    Method and Apparatus for Handling of Content that includes a Mix of CCI Segments
    8.
    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。

    Method and apparatus for distributing content to a client device
    10.
    发明申请
    Method and apparatus for distributing content to a client device 审中-公开
    用于向客户端设备分发内容的方法和装置

    公开(公告)号:US20070050293A1

    公开(公告)日:2007-03-01

    申请号:US11213480

    申请日:2005-08-26

    IPC分类号: G06Q99/00

    摘要: Method, apparatus, and computer readable medium for distributing content to a client device is described. One aspect of the invention relates to distributing pre-encrypted content. In one example, pre-encrypted content is received at a server. Pre-encryption key data associated with the pre-encrypted content is obtained. The pre-encrypted content is decrypted using the pre-encryption key data to produce portions of clear content. The portions of clear content are then re-encrypted as each portion is produced in accordance with unique key data to produce re-encrypted content. The re-encrypted content is distributed from the server towards a client device.

    摘要翻译: 描述了用于向客户端设备分发内容的方法,装置和计算机可读介质。 本发明的一个方面涉及分发预先加密的内容。 在一个示例中,在服务器处接收预先加密的内容。 获得与预加密内容相关联的预加密密钥数据。 使用预加密密钥数据对预先加密的内容进行解密,以产生清晰内容的部分。 然后,根据唯一的密钥数据产生每个部分以产生重新加密的内容,然后重新加密清楚内容的部分。 重新加密的内容从服务器分发到客户端设备。