公开(公告)号：US09009077B2

公开(公告)日：2015-04-14

申请号：US13053507

申请日：2011-03-22

申请人： Kevin Lau ,  Scott Plette ,  Clifford P. Strom ,  Alex McKelvey ,  Jonathan Billings

发明人： Kevin Lau ,  Scott Plette ,  Clifford P. Strom ,  Alex McKelvey ,  Jonathan Billings

IPC分类号： G06F21/00 ,  G06F21/10 ,  G06Q20/36

CPC分类号： G06F21/10 ,  G06F2221/0775 ,  G06Q20/3674 ,  G06Q20/3678 ,  Y10S705/901 ,  Y10S705/902 ,  Y10S705/903 ,  Y10S705/904 ,  Y10S705/905 ,  Y10S705/906 ,  Y10S705/907 ,  Y10S705/908 ,  Y10S705/909 ,  Y10S705/91 ,  Y10S705/911 ,  Y10S705/912

摘要： Metering is enabled through an arrangement in which a metering certificate is communicated to a mobile device using an over-the-air protocol. A metering trigger provides the metering certificate that includes a location to which metering data is posted by the mobile device and a public key of a public-private key pair, or alternatively provides a link to such metering certificate. A metering helper passes the metering certificate to a DRM system on the mobile device which collects metering data associated with the metering ID and uses the public key to encrypt the metering data into a metering challenge. The metering helper posts the metering challenge to the location. The metering service extracts the metering data from the metering challenge using a private key and generates a metering response that is received by the metering helper which prompts the DRM system to reset at least a portion of a data store in which the metering data is stored.

摘要翻译： 通过使用空中协议将计量证书传送到移动设备的安排来启用计量。 计量触发器提供计量证书，其包括由移动设备发布计量数据的位置和公私密钥对的公钥，或者替代地提供到这种计量证书的链接。 计量助手将计量证书传送到移动设备上的DRM系统，该DRM系统收集与测量ID相关联的计量数据，并使用公钥将计量数据加密成计量挑战。 计量助手将计量挑战贴到该位置。 计费服务使用专用密钥从计量挑战中提取计量数据，并产生由计量帮助者接收的计量响应，其提示DRM系统重置其中存储计量数据的数据存储的至少一部分。

公开(公告)号：US08756433B2

公开(公告)日：2014-06-17

申请号：US12684522

申请日：2010-01-08

申请人： Mark E. Paley ,  Stephen P. DiAcetis ,  Clifford P. Strom ,  Kedarnath A. Dubhashi

发明人： Mark E. Paley ,  Stephen P. DiAcetis ,  Clifford P. Strom ,  Kedarnath A. Dubhashi

IPC分类号： H04L29/06

CPC分类号： H04L9/0825 ,  H04L9/3247 ,  H04L63/10 ,  H04L63/20 ,  H04L2209/60

摘要： A content license associated with unencrypted digital content is generated, the content license including both an identifier of the unencrypted digital content and a content policy. At a user device, a determination is made as to whether the content license corresponds to particular unencrypted digital content. Use of the particular unencrypted digital content by the computing device is permitted in accordance with the content policy if the content license corresponds to the particular unencrypted digital content. However, use of the particular unencrypted digital content by the computing device based on the content license is prohibited if the content license does not correspond to the particular unencrypted digital content.

摘要翻译： 产生与未加密的数字内容相关联的内容许可证，内容许可证包括未加密的数字内容的标识符和内容策略。 在用户设备中，确定内容许可证是否对应于特定的未加密的数字内容。 如果内容许可证对应于特定的未加密的数字内容，则根据内容策略允许计算设备使用特定的未加密的数字内容。 然而，如果内容许可证不对应于特定的未加密的数字内容，则禁止由计算设备基于内容许可证使用特定的未加密的数字内容。

公开(公告)号：US08438645B2

公开(公告)日：2013-05-07

申请号：US11116884

申请日：2005-04-27

申请人： Amit Jain ,  Brian P. Evans ,  Clifford P. Strom ,  Benjamin B. Cutter, Jr.

发明人： Amit Jain ,  Brian P. Evans ,  Clifford P. Strom ,  Benjamin B. Cutter, Jr.

IPC分类号： G06F17/30 ,  G06F17/00

CPC分类号： G06F21/725 ,  G06F21/10 ,  G06F2221/0764 ,  G06F2221/2137

摘要： A system of controlling playback of digital media. A system of controlling playback of digital media comprising a CE device having a secure clock and a license having a specified grace period disposed upon the CE device in which a digital media file governed by the license may be played for the grace period upon failure of the secure clock.

摘要翻译： 控制数字媒体播放的系统。 一种控制数字媒体播放的系统，包括具有安全时钟的CE设备和具有指定的宽限期的许可证，所述许可证被布置在CE设备上，其中由许可证管理的数字媒体文件可以在宽限期内播放宽限期 安全时钟。

公开(公告)号：US08438114B2

公开(公告)日：2013-05-07

申请号：US13274217

申请日：2011-10-14

申请人： Benjamin Brooks Cutter ,  Brian P. Evans ,  Clifford P. Strom ,  Vikas Khandelwal

发明人： Benjamin Brooks Cutter ,  Brian P. Evans ,  Clifford P. Strom ,  Vikas Khandelwal

IPC分类号： G06F17/00

CPC分类号： H04L9/3271 ,  G06F21/105 ,  G06F2221/0797 ,  G06F2221/2103 ,  H04L2209/56 ,  H04L2209/603 ,  H04L2209/605

摘要： A digital license includes an identification of a removal service that can authorize removing such license. A client selects the license to be removed and the service, constructs a challenge including therein a challenge license identification block (LIB) identifying the license to be removed, and sends the challenge to the service. The service receives the challenge, stores at least a portion of the challenge in a database, constructs a response corresponding to the challenge and including therein a response LIB identifying the license to be removed and an identification of the service, and sends the response to the client. The client receives the response, employs the response LIB from the response to identify the license to be removed, and removes the identified license upon confirming that the identification of the service in the identified license matches the identification of the service in the response.

摘要翻译： 数字许可证包括可以授权删除此类许可证的删除服务的标识。 客户端选择要删除的许可证和服务，在其中构建挑战，其中包括标识要移除的许可证的挑战许可证标识块（LIB），并将该挑战发送给该服务。 服务接收到挑战，将至少一部分挑战存储在数据库中，构建与挑战相对应的响应，并在其中包括标识要删除的许可证的响应LIB和服务的标识，并将响应发送到 客户。 客户端接收响应，从响应中采用响应LIB来识别要删除的许可证，并且在确认所识别的许可证中的服务的标识与响应中的服务的标识匹配时，去除所识别的许可证。

公开(公告)号：US20110258437A1

公开(公告)日：2011-10-20

申请号：US12762169

申请日：2010-04-16

申请人： Alexander McKelvey ,  Clifford P. Strom ,  Quintin S. Burns

发明人： Alexander McKelvey ,  Clifford P. Strom ,  Quintin S. Burns

IPC分类号： G06F12/14 ,  H04L9/08 ,  H04L9/14 ,  H04L29/06

CPC分类号： G06F21/46 ,  G06F21/572 ,  G06F2221/2101 ,  H04L9/0891 ,  H04L9/14 ,  H04L63/06 ,  H04L2463/062

摘要： This document describes tools that enable a computing device to receive an update to content management software. The tools also enable the computing device to generate new public and private keys without the use of a key server.

摘要翻译： 本文档描述了使计算设备能够接收内容管理软件更新的工具。 这些工具还使得计算设备能够在不使用密钥服务器的情况下生成新的公钥和私钥。

公开(公告)号：US07693280B2

公开(公告)日：2010-04-06

申请号：US11112325

申请日：2005-04-22

申请人： Brian P. Evans ,  Clifford P. Strom ,  Daniel Rosenstein ,  Anand D. Paka ,  Nicholas J. Fang ,  Eduardo Oliveria

发明人： Brian P. Evans ,  Clifford P. Strom ,  Daniel Rosenstein ,  Anand D. Paka ,  Nicholas J. Fang ,  Eduardo Oliveria

IPC分类号： H04L9/00

CPC分类号： G06F21/10 ,  H04N21/26613 ,  H04N21/43615 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/63345 ,  H04N21/8355

摘要： A sequence of content keys are shared between a receiver of pieces of digital content and a computing device upon which the content is to be rendered. The receiver encrypts each piece of content according to a corresponding content key in the sequence and forwards the encrypted content to the computing device and the computing device decrypts the encrypted content according to the corresponding content key. The receiver initially transmits to the computing device an initialization digital license with an initial content key (CK0) therein. Each of the receiver and the computing device derive a new content key (CKx) in the sequence from the initial content key (CK(0)) in the sequence on an as-needed basis and in a coordinated fashion. The initialization license is required only once for the sequence of content keys, and the receiver need not explicitly communicate (CKx) to the computing device for each piece of content.

摘要翻译： 一系列内容密钥在数字内容片段的接收机和要在其上呈现内容的计算装置之间共享。 接收机根据序列中的对应的内容密钥加密每条内容，并将加密的内容转发到计算设备，并且计算设备根据相应的内容密钥解密加密的内容。 接收机最初向计算设备发送其中具有初始内容密钥（CK0）的初始化数字许可证。 接收器和计算装置中的每个接收器和计算装置根据需要的基础和以协调的方式从序列中的初始内容密钥（CK（0））中的序列中导出新的内容密钥（CKx）。 对于内容密钥的序列，初始化许可证仅需要一次，并且接收器不需要为每个内容显式地通信（CKx）到计算设备。

公开(公告)号：US07266569B2

公开(公告)日：2007-09-04

申请号：US10830632

申请日：2004-04-23

申请人： Benjamin Brooks Cutter ,  Brian P. Evans ,  Clifford P. Strom ,  Michael Jay Parks

发明人： Benjamin Brooks Cutter ,  Brian P. Evans ,  Clifford P. Strom ,  Michael Jay Parks

IPC分类号： G06F17/00 ,  G06F7/00

CPC分类号： G06F21/10 ,  G06F2221/2135 ,  G06Q50/06 ,  Y10S707/99945 ,  Y10S707/99948

摘要： Metered data is accumulated and is indexed within a metering database of a client according to a metering ID (MID) and a content-associated ID (KID). The client selects a particular MID and metered data in the metering database having the selected MID, and constructs a challenge based on the selected metered data and sends same to a metering service. The metering service obtains the metered data from the challenge, stores same, and constructs a response. The client receives the response including a list of KIDs of the selected metered data in the challenge, and processes the list of KIDs by, for each KID in the list, deleting the metered data from the metering database having the selected MID and the KID.

摘要翻译： 计量数据被累积并且根据测量ID（MID）和内容相关ID（KID）在客户端的计量数据库内被索引。 客户端在具有所选MID的计量数据库中选择特定的MID和计量数据，并且基于所选择的计量数据构建挑战并将其发送到计费服务。 计量服务从挑战中获取计量数据，存储相同，并构建响应。 客户端接收到包括挑战中选择的计量数据的KID列表的响应，并且通过列表中的每个KID处理KID列表，从具有所选择的MID和KID的计量数据库中删除计量数据。

公开(公告)号：US07231669B2

公开(公告)日：2007-06-12

申请号：US11364731

申请日：2006-02-27

申请人： Yuen Yu Leung ,  Marcus Peinado ,  Clifford P. Strom

发明人： Yuen Yu Leung ,  Marcus Peinado ,  Clifford P. Strom

IPC分类号： H04L9/00 ,  H04L9/32 ,  H04N7/16

CPC分类号： G06F21/10 ,  H04L63/10 ,  H04N21/41407 ,  H04N21/4405 ,  H04N21/4627

摘要： Digital content is rendered on a device by transferring the content to the device and obtaining a digital license corresponding to the content. A sub-license corresponding to and based on the obtained license is composed and transferred to the device, and the content is rendered on the device only in accordance with the terms of the sub-license. The content is encrypted and decryptable according to a content key, and the sub-license includes the content key encrypted and decryptable according to a secret. The sub-license also includes indexing information identifying the secret to the device. The indexing information in the sub-license is obtained to identify the secret, and the secret is acquired based at least in part on the indexing information. The secret is then applied to the encrypted content key to decrypt and obtain the content key, and the obtained content key is applied to the encrypted content to decrypt and obtain the content. To compose the sub-license and also to render the content, the secret is derived by obtaining a device identifier, acquiring a super-secret, and applying the obtained device identifier and super-secret to a function to derive the secret.

摘要翻译： 通过将内容传送到设备并获得与内容相对应的数字许可证，在设备上呈现数字内容。 对应于并基于所获得的许可证的子许可证被组合并传送到设备，并且仅根据子许可证的条款在设备上呈现内容。 内容根据内容密钥被加密和可解密，并且子许可证包括根据秘密加密和可解密的内容密钥。 子许可证还包括标识设备秘密的索引信息。 获取子许可证中的索引信息以识别秘密，并且至少部分地基于索引信息获取秘密。 然后将秘密应用于加密内容密钥以解密并获得内容密钥，并将获得的内容密钥应用于加密内容以解密并获得内容。 为了构成子许可证并且还呈现内容，通过获得设备标识符，获取超级秘密，并将获得的设备标识符和超级秘密应用于导出秘密的功能来导出秘密。

公开(公告)号：US09805374B2

公开(公告)日：2017-10-31

申请号：US11734694

申请日：2007-04-12

申请人： Patrik Schnell ,  Clifford P. Strom ,  Adrian J Oney ,  Mark L. Beaubien ,  Kedarnath A. Dubhashi ,  Alexandre V. Grigorovitch ,  Anand Paka ,  Satvir Randhawa

发明人： Patrik Schnell ,  Clifford P. Strom ,  Adrian J Oney ,  Mark L. Beaubien ,  Kedarnath A. Dubhashi ,  Alexandre V. Grigorovitch ,  Anand Paka ,  Satvir Randhawa

IPC分类号： G06Q30/00 ,  G06Q30/02

CPC分类号： G06Q30/02 ,  G06C3/00 ,  G06Q20/00

摘要： Techniques enable creation of a preview license for digital content. In some instances, the preview license indicates that it allows a content-consuming device to consume less than all of the content. This preview license may create a list specifying multiple portions of the digital content that the content-consuming device may consume. These techniques may also present to a device user an offer to purchase rights to consume all of the digital content after consumption of the preview-licensed portion(s). In other instances, a content server may embed the preview license into a content package that contains the digital content, allowing the server to distribute the package to multiple devices. In still other instances, the preview license may be bound to a domain rather than to individual devices. This allows member devices to share the digital content and the preview license, such that each member device may enjoy the preview experience.

公开(公告)号：US08639627B2

公开(公告)日：2014-01-28

申请号：US11954211

申请日：2007-12-12

申请人： Patrik Schnell ,  Kevin Lau ,  James M Alkove ,  Alexandre V Grigorovitch ,  Ryan A Haveson ,  Max G Morris ,  Scott A Plette ,  Clifford P Strom ,  Alexander McKelvey

发明人： Patrik Schnell ,  Kevin Lau ,  James M Alkove ,  Alexandre V Grigorovitch ,  Ryan A Haveson ,  Max G Morris ,  Scott A Plette ,  Clifford P Strom ,  Alexander McKelvey

IPC分类号： G06F21/00

CPC分类号： G06Q30/06 ,  G06Q50/184

摘要： Portable digital rights for multiple devices is described. In an embodiment, a digital rights management (DRM) system includes a first device with a removable component configured as a token that is associated with a DRM license. The first device also includes a removable memory card that stores protected media content on which the first device can perform actions as permitted by the DRM license. The DRM system also includes a second device that can have the removable component and the removable memory card when removed from the first device and installed in the second device such that the second device can perform the actions on the protected media content as permitted by the DRM license.

摘要翻译： 描述了多个设备的便携式数字版权。 在一个实施例中，数字版权管理（DRM）系统包括具有配置为与DRM许可证相关联的令牌的可移除组件的第一设备。 第一设备还包括可移动存储卡，其存储受保护的媒体内容，第一设备可以在其上执行由DRM许可允许的动作。 DRM系统还包括第二设备，当从第一设备移除并且安装在第二设备中时，可以具有可移动组件和可移动存储卡，使得第二设备可以在DRM所允许的情况下对受保护的媒体内容执行动作 执照。