公开(公告)号：WO2012067813A1

公开(公告)日：2012-05-24

申请号：PCT/US2011/058772

申请日：2011-11-01

Applicant: GENERAL INSTRUMENT CORPORATION ,  TANG, Polly ,  PETERKA, Petr

Inventor： TANG, Polly ,  PETERKA, Petr

IPC: G06F21/00

CPC classification number: G06F21/10 ,  G06F2221/0742 ,  G06F2221/2141 ,  G06Q30/00 ,  H04L9/083 ,  H04L9/3213 ,  H04L63/062 ,  H04L63/0807 ,  H04L2209/603 ,  H04L2463/101

Abstract: A device is provided for use with a digital content provider and a content purchaser. The content provider can provide digital content and a first digital key, wherein the digital content has quantified digital rights associated therewith. The device includes a receiving portion, a security portion, a content database, an interface portion and a transmitting portion. The receiving portion can receive the digital content and the first digital key. The security portion can access the digital content with the first digital key. The content database can store the digital content. The interface portion can offer to the content purchaser the digital content and can enable the content purchaser to purchase the digital content in accordance with purchased quantified digital rights. The security portion can further encrypt the digital content with a second digital key such that the content purchaser may use the purchased digital content.

Abstract translation: 提供一种与数字内容提供商和内容购买者一起使用的设备。 内容提供商可以提供数字内容和第一数字密钥，其中数字内容已经量化与其相关联的数字权限。 该设备包括接收部分，安全部分，内容数据库，接口部分和发送部分。 接收部分可以接收数字内容和第一数字键。 安全部分可以使用第一数字密钥访问数字内容。 内容数据库可以存储数字内容。 接口部分可以向内容购买者提供数字内容，并且可以使内容购买者能够根据购买的量化数字权限购买数字内容。 安全部分可以利用第二数字密钥进一步加密数字内容，使得内容购买者可以使用购买的数字内容。

公开(公告)号：WO2011066531A2

公开(公告)日：2011-06-03

申请号：PCT/US2010/058318

申请日：2010-11-30

Applicant: GENERAL INSTRUMENT CORPORATION ,  ZHANG, Jiang ,  MANGALORE, Geetha ,  PETERKA, Petr

Inventor： ZHANG, Jiang ,  MANGALORE, Geetha ,  PETERKA, Petr

IPC: G06F21/00

CPC classification number: H04N21/2541 ,  G06F21/10 ,  H04L9/0869 ,  H04L63/062 ,  H04L2209/30 ,  H04L2209/603 ,  H04L2463/061 ,  H04L2463/101 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/2353 ,  H04N21/4405 ,  H04N21/835 ,  H04N21/85406

Abstract: A method is provided for creating an encrypted data file (700) from a data file having a sample entry box and a media data box. The sample entry box has description information therein. The media data box includes media data therein. The method includes: receiving the data file; encrypting the media data within the media data box with an encryption key; replacing the sample entry box with an encoded box (302); creating a sinf box (702) within the encoded box (302); creating a frma box (306) within the sinf box (702); and creating an schm box (704) within the sinf box (702). The schm box (704) indicates the type of formatting of the encrypted media data. The encoded box (302) does not include an initial counter that may be used to decrypt the encrypted media data.

Abstract translation: 提供了一种用于从具有样本输入框和媒体数据框的数据文件创建加密数据文件（700）的方法。 样本输入框中包含描述信息。 媒体数据盒包括其中的媒体数据。 该方法包括：接收数据文件; 用加密密钥加密媒体数据盒内的媒体数据; 用编码框替换样本输入框（302）; 在编码框（302）内创建sinf框（702）; 创建sinf盒（702）内的frma盒（306）; 并在sinf框（702）内创建一个schm框（704）。 schm框（704）指示加密媒体数据的格式化类型。 编码框（302）不包括可用于解密加密的媒体数据的初始计数器。

公开(公告)号：WO2008134476A1

公开(公告)日：2008-11-06

申请号：PCT/US2008/061512

申请日：2008-04-25

Applicant: GENERAL INSTRUMENT CORPORATION ,  PETERKA, Petr ,  MEDVINSKY, Alexander ,  MORONEY, Paul

Inventor： PETERKA, Petr ,  MEDVINSKY, Alexander ,  MORONEY, Paul

IPC: H04N7/16

CPC classification number: H04N21/440281 ,  G06F21/10 ,  G06F2221/0784 ,  G06F2221/2137 ,  G06F2221/2151 ,  H04N21/4147 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/8456

Abstract: A process may be utilized by a DVR. The process characterizes a set of content as a plurality of segments as the set of content is received. Each of the segments has a segment length according to a predetermined time interval. Further, the process encrypts each of the segments with a corresponding content encryption key to generate a plurality of encrypted segments. The corresponding content encryption key for each of the segments is generated by the DRM component. In addition, the process stores each of the encrypted segments for playback with trick play features in accordance with an expiration content rule having a time limit on the temporary playability of the set of content.

Abstract translation: DVR可以利用进程。 当接收到内容集合时，该过程将一组内容表征为多个段。 每个段具有根据预定时间间隔的段长度。 此外，该过程使用对应的内容加密密钥来加密每个段，以生成多个加密段。 每个段的相应内容加密密钥由DRM组件产生。 此外，该过程根据具有对该组内容的临时可播放性具有时间限制的过期内容规则，将每个加密段用于播放特技播放特征。

公开(公告)号：WO2004055645A2

公开(公告)日：2004-07-01

申请号：PCT/US2003/039857

申请日：2003-12-15

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： PETERKA, Petr ,  ZHANG, Jiang

IPC: G06F

CPC classification number: H04L63/062 ,  G06F21/10 ,  H04L63/102 ,  H04L2463/101 ,  H04L2463/102

Abstract: A system (100) for determining whether a client (102) is authorized to access content in a communication network (114) is disclosed. The system includes a computer software product (106, 112) containing programming instructions for defining content access rules in connection with accessing the content and for identifying client selections related to the content. The computer software product (106, 112) further includes programming instructions for providing client entitlement data. The computer software product (106, 112) further includes programming instructions for comparing the client entitlement data with the content access rules and the client selections to determine whether the client is authorized to access the content. Optionally, the computer software product (106, 112) also includes programming instructions that allow additional rules to be added to the content access rules. These additional rules can be added by other parties that are involved in the process of providing the requested content to the client.

Abstract translation: 公开了一种用于确定客户端（102）是否被授权访问通信网络（114）中的内容的系统（100）。 该系统包括计算机软件产品（106,112），该计算机软件产品包含用于定义与访问内容有关的内容访问规则以及用于识别与该内容相关的客户端选择的程序指令。 计算机软件产品（106,112）还包括用于提供客户端授权数据的编程指令。 计算机软件产品（106,112）还包括用于将客户端授权数据与内容访问规则和客户端选择进行比较的程序指令，以确定客户端是否被授权访问内容。 可选地，计算机软件产品（106,112）还包括允许将附加规则添加到内容访问规则的编程指令。 这些附加规则可以由参与向客户端提供请求的内容的过程中的其他方添加。

公开(公告)号：WO2003045036A2

公开(公告)日：2003-05-30

申请号：PCT/US2002/036806

申请日：2002-11-15

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： MEDVINSKY, Alexander ,  PETERKA, Petr ,  MORONEY, Paul ,  SPRUNK, Eric

IPC: H04L29/06

CPC classification number: H04L63/04 ,  G06Q20/367 ,  H04L63/062 ,  H04L63/08 ,  H04L2463/101

Abstract: A digital rights management architecture for securely delivering content to authorized consumers. The architecture includes a content provider and a consumer system for requesting content from the content provider. The content provider generates a session rights object having purchase options selected by the consumer. A KDC thereafter provides authorization data to the consumer system. Also, a caching server is provided for comparing the purchase options with the authorization data. The caching server forwards the requested content to the consumer system if the purchase options match the authorization data. Note that the caching server employs real time streaming for securely forwarding the encrypted content, and the requested content is encrypted for forwarding to the consumer system. Further, the caching server and the consumer system exchange encrypted control messages (and authenticated) for supporting transfer of the requested content. In this manner, all interfaces between components are protected by encryption and/authenticated.

Abstract translation: 数字版权管理架构，用于将权限安全地传递给授权消费者。 该架构包括内容提供商和用于从内容提供商请求内容的消费者系统。 内容提供商生成具有由消费者选择的购买选项的会话权限对象。 KDC此后向消费者系统提供授权数据。 此外，还提供了一个缓存服务器，用于将购买选项与授权数据进行比较。 如果购买选项与授权数据匹配，则缓存服务器将所请求的内容转发到消费者系统。 请注意，缓存服务器采用实时流式传输安全地转发加密的内容，并且所请求的内容被加密以转发到消费者系统。 此外，缓存服务器和消费者系统交换加密的控制消息（并被认证）以支持所请求内容的传送。 以这种方式，组件之间的所有接口都受到加密和/或认证的保护。

公开(公告)号：WO2009088761A1

公开(公告)日：2009-07-16

申请号：PCT/US2008/088105

申请日：2008-12-23

Applicant: GENERAL INSTRUMENT CORPORATION ,  RAJAGOPAL, Priya ,  MONTPETIT, Marie Jose ,  PETERKA, Petr

Inventor： RAJAGOPAL, Priya ,  MONTPETIT, Marie Jose ,  PETERKA, Petr

IPC: H04K1/00

CPC classification number: H04L9/3273 ,  H04L9/083 ,  H04L9/0844 ,  H04L63/06 ,  H04L65/1016 ,  H04L2209/603 ,  H04N7/1675 ,  H04N7/17318 ,  H04N21/2381 ,  H04N21/25816 ,  H04N21/26613 ,  H04N21/47202 ,  H04N21/63345 ,  H04N21/64322 ,  H04W12/04

Abstract: Content delivered to client device over an Internet Protocol Multimedia Subsystem (IMS)-based network is protected through a digital rights management (DRM) scheme that leverages IMS service and access infrastructure, such as the IMS core. After authentication and selection of content to be played for the user, the network identifies a key management system having keys for decrypting the selected content. A bootstrapping service function participates in an application-level authentication of the client device to establish a secure communication channel between the key management system and the client device. The key management system responds to a content key request received from the client device by providing a content key via the secure communication channel. The network can then stream content to the client device, which decrypts it using the content key.

Abstract translation: 通过基于互联网协议多媒体子系统（IMS）的网络传递到客户端设备的内容通过利用IMS服务和接入基础设施（例如IMS核心）的数字版权管理（DRM）方案来保护。 在认证和选择要为用户播放的内容之后，网络识别具有用于解密所选内容的密钥的密钥管理系统。 引导服务功能参与客户端设备的应用级认证，以建立密钥管理系统与客户端设备之间的安全通信信道。 密钥管理系统通过经由安全通信信道提供内容密钥来响应从客户端设备接收到的内容密钥请求。 然后，网络可以将内容流式传输到客户端设备，该设备使用内容密钥对其进行解密。

公开(公告)号：WO2009088758A1

公开(公告)日：2009-07-16

申请号：PCT/US2008/088095

申请日：2008-12-23

Applicant: GENERAL INSTRUMENT CORPORATION ,  PETERKA, Petr

Inventor： PETERKA, Petr

IPC: H04L9/00

CPC classification number: H04L9/083 ,  H04L2209/603

Abstract: A process is provided. The process determines member devices in a domain of devices. Further, the process encrypts a set of content with a content encryption key to generate an encrypted set of content. In addition, the process encrypts the content encryption key with each of a plurality of pre-fetch keys to generate a plurality of encrypted content encryption keys. Each of the pre-fetch keys corresponds to a member device in the domain of devices. Finally, the process stores each of the encrypted content encryption keys in a content license corresponding to a member device in the domain of devices. The encrypted content may be stored on a removable medium. Further, the process allows another device to play back the content from the same removable medium.

Abstract translation: 提供了一个过程。 该过程确定设备域中的成员设备。 此外，该过程使用内容加密密钥来加密一组内容以生成加密的内容集合。 此外，该过程利用多个预取密钥中的每一个来加密内容加密密钥，以生成多个加密的内容加密密钥。 每个预取密钥对应于设备域中的成员设备。 最后，该过程将每个加密内容加密密钥存储在与设备域中的成员设备相对应的内容许可证中。 加密内容可以存储在可移动介质上。 此外，该过程允许另一设备从相同的可移动介质播放内容。

公开(公告)号：WO2004079722A2

公开(公告)日：2004-09-16

申请号：PCT/US2004/006261

申请日：2004-03-02

Applicant: GENERAL INSTRUMENT CORPORATION ,  PETERKA, Petr

Inventor： PETERKA, Petr

IPC: G11B

CPC classification number: G06F21/10

Abstract: A system for processing copy control information in a digital rights management system in standard languages such as XML, XrML and ODML. Concise and descriptive schemas are provided that provide differing levels of compactness and readability. In one embodiment, default values are used so that all attribute values do not have to be provided by a digital rights management definition author. Abbreviated descriptive names can be used along with value aliases to provide readily understandable definitions.

Abstract translation: 用于以标准语言（例如XML，XrML和ODML）在数字版权管理系统中处理复制控制信息的系统。 提供简洁和描述性的模式，提供不同级别的紧凑性和可读性。 在一个实施例中，使用默认值，使得所有属性值不必由数字版权管理定义作者提供。 缩写描述性名称可与价值别名一起使用，以提供易于理解的定义。

公开(公告)号：WO2003098867A3

公开(公告)日：2003-11-27

申请号：PCT/US2003/001955

申请日：2003-01-22

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： PETERKA, Petr ,  MEDVINSKY, Alexander ,  CHEN, Kuang-Ming

IPC: H04L29/06

Abstract: A method and system for transmitting content from a content provider to a caching server and then from the caching server to a viewer. The method comprises encrypting the content with a pre-encryptor application before the content is transmitted to the caching server. The pre-encryptor application uses a pre-encryption subkey provided by a key storage service to perform the pre-encryption. The key storage service is a stand-alone component of the system and generates, stores, and distributes the pre-encryption subkeys.

公开(公告)号：WO2003090049A2

公开(公告)日：2003-10-30

申请号：PCT/US2003/011138

申请日：2003-04-09

Applicant: GENERAL INSTRUMENT CORPORATION

Inventor： PETERKA, Petr ,  ZHANG, Jiang

IPC: G06F1/00

CPC classification number: G06F21/10

Abstract: A system for determining whether a client is authorized to access content in a communication network. The system includes a computer software product containing programming instructions for defining generic rules for accessing the content, and for identifying client selections related to the content. The computer software product further includes programming instructions for providing client entitlement data. The client entitlement data is compared to the generic rules and the client selections to determine whether the client is authorized to access the content. The computer software product further includes programming instructions for comparing the client entitlement data with the generic rules and the client selections to determine whether the client is authorized to access the content.

Abstract translation: 一种用于确定客户端是否被授权访问通信网络中的内容的系统。 该系统包括计算机软件产品，其包含用于定义用于访问内容的通用规则的编程指令，以及用于识别与内容相关的客户端选择。 计算机软件产品还包括用于提供客户端授权数据的编程指令。 将客户端授权数据与通用规则和客户端选择进行比较，以确定客户端是否被授权访问内容。 计算机软件产品还包括用于将客户端授权数据与通用规则和客户端选择进行比较的程序指令，以确定客户端是否被授权访问内容。