公开(公告)号：US20060010076A1

公开(公告)日：2006-01-12

申请号：US10830632

申请日：2004-04-23

申请人： Benjamin Cutter ,  Brian Evans ,  Clifford Strom ,  Michael Parks

发明人： Benjamin Cutter ,  Brian Evans ,  Clifford Strom ,  Michael Parks

IPC分类号： H04K1/00

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：US20050251487A1

公开(公告)日：2005-11-10

申请号：US10831281

申请日：2004-04-23

申请人： Brian Evans ,  Clifford Strom ,  Michael Parks

发明人： Brian Evans ,  Clifford Strom ,  Michael Parks

IPC分类号： G06F21/24 ,  G06F1/00 ,  G06F12/14 ,  G06F21/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/32 ,  H04L29/06

CPC分类号： H04L63/10 ,  G06F21/10 ,  H04L63/045 ,  H04L2463/101

摘要： A request to render encrypted content is received and a chain of licenses corresponding to the content is located. The chain includes a leaf license linked to the content at one end of the chain, a root license at the other end of the chain, and any intermediate licenses therebetween. The leaf license and any intermediate licenses in the chain are each bound to the adjoining license in the chain toward the root license, and the root license is bound to an owner of a private key (PR-U). For each license in the chain, the license is verified and it is confirmed that the license allows the content to be rendered. A decryption key is obtained from the leaf license based on application of (PR-U) to the root license, the obtained key is applied to decrypt the encrypted content, and the decrypted content is rendered.

摘要翻译： 接收到呈现加密内容的请求，并且找到与内容相对应的许可证链。 该链包含与链的一端的内容链接的叶授权，链的另一端的根许可证以及它们之间的任何中间许可。 链条中的叶子许可证和任何中间许可证都被绑定到链接中的相邻许可证，并且根许可证被绑定到私钥（PR-U）的所有者。 对于链中的每个许可证，许可证被验证，并且确认许可证允许呈现内容。 从基于（PR-U）应用到根许可证的叶授权获得解密密钥，所获得的密钥被应用于解密加密的内容，并且解密的内容被呈现。

公开(公告)号：US20060242078A1

公开(公告)日：2006-10-26

申请号：US11113160

申请日：2005-04-22

申请人： Brian Evans ,  Clifford Strom ,  Daniel Rosenstein

发明人： Brian Evans ,  Clifford Strom ,  Daniel Rosenstein

IPC分类号： G06F17/60

CPC分类号： G06Q10/06

摘要： A computing device segregates licenses for corresponding content according to relatively short lived licenses for relatively short lived content and relatively long lived licenses for relatively long lived content. The computing device stores the relatively short lived licenses in a more temporary and volatile license store, and the relatively long lived licenses in a more permanent and non-volatile license store. Thus, the relatively short lived licenses are deleted when the temporary license store is turned off and do not create disorder in the permanent license store.

摘要翻译： 计算设备根据相对较短寿命的内容相对较短的许可证和相对较长寿命内容的相对长寿命的许可证，对相应的内容进行许可。 计算设备将相对较短的许可证存储在更临时和易失性的许可证存储中，以及在更永久和非易失性许可证存储中的相对长寿命的许可证。 因此，当临时许可证存储关闭并且不会在永久许可证存储中产生混乱时，相对较短的寿命许可证被删除。

公开(公告)号：US20060085646A1

公开(公告)日：2006-04-20

申请号：US10968462

申请日：2004-10-18

申请人： Benjamin Cutter ,  Clifford Strom ,  Brian Evans ,  Amit Jain ,  Michael Siu

发明人： Benjamin Cutter ,  Clifford Strom ,  Brian Evans ,  Amit Jain ,  Michael Siu

IPC分类号： H04L9/00

CPC分类号： G06F21/10 ,  H04L9/3265 ,  H04L2209/603

摘要： Generating a device certificate. A method of generating a device certificate comprising forming a template that will generate a device certificate upon the occurrence of a triggering event, filling in an authorization root certificate section of the template; filling in an authorization certificate section of the template, filling in a group certificate section of the template, and forming a device certificate section of the template.

摘要翻译： 生成设备证书。 一种生成设备证书的方法，包括形成在发生触发事件时将生成设备证书的模板，填写模板的授权根证书部分; 填写模板的授权证书部分，填写模板的组合证书部分，并形成模板的设备证书部分。

公开(公告)号：US20060235801A1

公开(公告)日：2006-10-19

申请号：US11108038

申请日：2005-04-14

申请人： Clifford Strom ,  Michael Siu ,  Brian Evans

发明人： Clifford Strom ,  Michael Siu ,  Brian Evans

IPC分类号： H04L9/00

CPC分类号： H04L63/0442 ,  G06F21/10 ,  G06F2221/2129 ,  H04L9/0825 ,  H04L9/083 ,  H04L63/0823 ,  H04L2209/603

摘要： A computing device has encrypted content and a corresponding license having a decryption key for decrypting the content. The license allows the computing device to render the content thereon. The computing device may issue a sub-license based on the license to a portable device. The sub-license allows the portable device to render the content thereon and has the decryption key. The portable device has a digital device certificate including information thereon. The computing device receives from the portable device the device certificate thereof, and determines based on rules in the license and the information on the portable device in the device certificate whether the computing device can issue the sub-license to the portable device. If so, the computing device constructs such sub-license to include the decryption key (KD) and transmits the constructed sub-license to the portable device.

摘要翻译： 计算设备具有加密内容和具有用于解密内容的解密密钥的相应许可证。 许可证允许计算设备在其上呈现内容。 计算设备可以基于许可证向便携式设备发布子许可证。 子许可证允许便携式设备在其上呈现内容并具有解密密钥。 便携式设备具有包括其上的信息的数字设备证书。 计算设备从便携式设备接收其设备证书，并且基于许可证中的规则和设备证书中的便携式设备上的信息来确定计算设备是否可以向便携式设备发布子许可证。 如果是这样，则计算设备构造这样的子许可证以包括解密密钥（KD），并将构造的子许可证发送到便携式设备。

公开(公告)号：US20060235799A1

公开(公告)日：2006-10-19

申请号：US11107709

申请日：2005-04-14

申请人： Brian Evans ,  Clifford Strom ,  Geoffrey Dunbar ,  Richard Prologo

发明人： Brian Evans ,  Clifford Strom ,  Geoffrey Dunbar ,  Richard Prologo

IPC分类号： G06F17/60

CPC分类号： G06F21/10

摘要： A method is provided for a computing device to copy (burn) a playlist of tracks to a portable medium, where each track corresponds to a piece of digital content. At least one of the pieces of content is rights-management (RM) protected and accordingly is burned to the portable medium only in accordance with a corresponding digital license.

摘要翻译： 提供了一种用于计算设备将轨道播放列表复制（刻录）到便携式介质的方法，其中每个轨道对应于一段数字内容。 至少有一件内容是权限管理（RM）受保护的，因此仅根据相应的数字许可证将其烧录到便携式介质。

公开(公告)号：US20060232449A1

公开(公告)日：2006-10-19

申请号：US11108327

申请日：2005-04-18

申请人： Amit Jain ,  Benjamin Cutter ,  Brian Evans ,  Clifford Strom

发明人： Amit Jain ,  Benjamin Cutter ,  Brian Evans ,  Clifford Strom

IPC分类号： H03M7/00

CPC分类号： H04N21/440263 ,  G06F21/10 ,  G11B20/00224 ,  G11B20/0071 ,  G11B20/00731 ,  G11B20/00797 ,  G11B20/0084 ,  H04N21/4126 ,  H04N21/440218 ,  H04N21/4627 ,  H04N21/8355

摘要： Described herein are one or more implementations for transforming (e.g., transcoding) DRM-protected digital media content while retaining associated DRM-information (e.g., a user license its related information).

公开(公告)号：US20050240533A1

公开(公告)日：2005-10-27

申请号：US10831280

申请日：2004-04-22

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

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

IPC分类号： G06F11/30 ,  G06F12/14 ,  G06F17/00 ,  G06F19/00 ,  G06F21/00 ,  H04K1/00 ,  H04L9/00 ,  H04L9/32 ,  G06F17/60

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：US20060265334A9

公开(公告)日：2006-11-23

申请号：US10831280

申请日：2004-04-23

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

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

IPC分类号： H04L9/00 ,  H04K1/00 ,  G06F17/60

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.

公开(公告)号：US20060239451A1

公开(公告)日：2006-10-26

申请号：US11112325

申请日：2005-04-22

申请人： Brian Evans ,  Clifford Strom ,  Daniel Rosenstein ,  Anand Paka ,  Nicholas Fang ,  Eduardo Oliveira

发明人： Brian Evans ,  Clifford Strom ,  Daniel Rosenstein ,  Anand Paka ,  Nicholas Fang ,  Eduardo Oliveira

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（CK 0）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））中得到新的内容密钥（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。