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    Systems and methods for playing back alternative streams of protected content protected using common cryptographic information
    2.
    发明授权
    Systems and methods for playing back alternative streams of protected content protected using common cryptographic information 有权
    用于回放使用公共密码信息保护的受保护内容的备用流的系统和方法

    公开(公告)号：US08909922B2

    公开(公告)日：2014-12-09

    申请号：US13340623

    申请日：2011-12-29

    申请人： Michael George Kiefer ,  Eric William Grab ,  Jason Braness

    发明人： Michael George Kiefer ,  Eric William Grab ,  Jason Braness

    IPC分类号： H04L29/06 ,  H04L9/08

    CPC分类号： H04N21/2347 ,  H04L9/0819 ,  H04L9/0822 ,  H04L9/0861 ,  H04L9/14 ,  H04L9/32 ,  H04L63/0428 ,  H04L2209/603 ,  H04N21/2541 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/64715

    摘要： Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content.

    摘要翻译： 描述了根据本发明的实施例的使用受保护内容的替代流来执行自适应比特率流的系统和方法。 本发明的一个实施例包括处理器和包含客户端应用的存储器。 此外，客户端应用程序将处理器配置为：请求标识被保护内容的多个替代流的顶级索引文件，其中使用公共密码信息对受保护内容的每个替代流进行加密; 获取通用的加密信息; 从至少所述保护内容的多个备选流中请求内容的一部分; 使用公共密码信息访问受保护的内容; 并播放内容。

    Federated digital rights management scheme including trusted systems
    7.
    发明授权
    Federated digital rights management scheme including trusted systems 有权
    联合数字版权管理方案，包括受信任的系统

    公开(公告)号：US08656183B2

    公开(公告)日：2014-02-18

    申请号：US13489409

    申请日：2012-06-05

    申请人： Eric William Grab ,  Chris Russell ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    发明人： Eric William Grab ,  Chris Russell ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    IPC分类号： G06F21/22

    CPC分类号： G06F21/10 ,  G06F21/105 ,  G06F2221/0724 ,  H04L9/3268 ,  H04L63/0428 ,  H04N21/222 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/4627 ,  H04N21/8355

    摘要： Federated systems for issuing playback certifications granting access to technically protected content are described. One embodiment of the system includes a registration server connected to a network, a content server connected to the network and to a trusted system, a first device including a non-volatile memory that is connected to the network and a second device including a non-volatile memory that is connected to the network. In addition, the registration server is configured to provide the first device with a first set of activation information in a first format, the first device is configured to store the first set of activation information in non-volatile memory, the registration server is configured to provide the second device with a second set of activation information in a second format, and the second device is configured to store the second set of activation information in non-volatile memory.

    摘要翻译： 描述了授予访问技术保护内容的播放认证的联合系统。 系统的一个实施例包括连接到网络的注册服务器，连接到网络和可信系统的内容服务器，包括连接到网络的非易失性存储器的第一设备和包括非易失性存储器的第二设备， 连接到网络的易失性存储器。 此外，注册服务器被配置为向第一设备提供第一格式的第一组激活信息，第一设备被配置为将第一组激活信息存储在非易失性存储器中，注册服务器被配置为 以第二格式向第二设备提供第二组激活信息，并且第二设备被配置为将第二组激活信息存储在非易失性存储器中。

    SYSTEMS AND METHODS FOR IDENTIFYING CONSUMER ELECTRONIC PRODUCTS BASED ON A PRODUCT IDENTIFIER
    8.
    发明申请
    SYSTEMS AND METHODS FOR IDENTIFYING CONSUMER ELECTRONIC PRODUCTS BASED ON A PRODUCT IDENTIFIER 有权
    基于产品标识符识别消费电子产品的系统和方法

    公开(公告)号：US20130007443A1

    公开(公告)日：2013-01-03

    申请号：US13436898

    申请日：2012-03-31

    申请人： Eric William Grab ,  Kourosh Soroushian ,  Tung Lin ,  Francis Chan ,  Evan Wallin

    发明人： Eric William Grab ,  Kourosh Soroushian ,  Tung Lin ,  Francis Chan ,  Evan Wallin

    IPC分类号： H04L29/06 ,  G06F21/00

    CPC分类号： G06F21/73 ,  G06F21/10 ,  G06F21/33 ,  G06F21/604

    摘要： Systems and methods for identifying consumer electronic products using a playback device with a product identifier in accordance with embodiments of the invention are disclosed. One embodiment includes a processor, and memory configured to store a product identifier, where the product identifier is associated with a specific product and is associated with cryptographic information, and user account data, where the user account data is associated with a user account. In addition, the processor is configured by an application to receive a request for registration from a playback device, receive a product identifier from the playback device, retrieve cryptographic information using the playback device, and send user account data to the playback device encrypted using at least the cryptographic information associated with the product identifier.

    摘要翻译： 公开了使用具有根据本发明的实施例的产品标识符的播放装置来识别消费者电子产品的系统和方法。 一个实施例包括处理器和被配置为存储产品标识符的存储器，其中产品标识符与特定产品相关联并与密码信息相关联，以及用户帐户数据，其中用户帐户数据与用户帐户相关联。 此外，处理器由应用程序配置以从回放设备接收注册请求，从回放设备接收产品标识符，使用回放设备检索加密信息，并将用户帐户数据发送到使用 至少与产品标识符相关联的加密信息。

    SYSTEMS AND METHODS FOR DEVICE AUTHENTICATION INCLUDING TIMESTAMP VALIDATION
    9.
    发明申请
    SYSTEMS AND METHODS FOR DEVICE AUTHENTICATION INCLUDING TIMESTAMP VALIDATION 审中-公开
    用于设备验证的系统和方法，包括TIMESTAMP验证

    公开(公告)号：US20130004142A1

    公开(公告)日：2013-01-03

    申请号：US13436927

    申请日：2012-03-31

    申请人： Eric William Grab ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    发明人： Eric William Grab ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    IPC分类号： H04N5/93

    CPC分类号： H04N5/913 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/44204 ,  H04N21/4627 ,  H04N2005/91364

    摘要： Systems and methods for authenticating playback devices using timestamp validation in accordance with embodiments of the invention are disclosed. One embodiment includes measuring a time difference between the system clock and a clock on a remote server, retrieving at least one reference time difference from the playback device, where the reference time difference is stored in the playback device, determining whether the system clock of the playback device is valid by comparing the measured time difference to reference time difference, retrieving at least one timestamp when the measured time difference is valid, where each of the at least one timestamps is securely stored by the playback device in response to the occurrence of a predetermined event and is based on the current time of the system clock of the playback device when the predetermined event occurred, and determining whether the system clock is valid based upon the retrieved timestamp.

    摘要翻译： 公开了使用根据本发明的实施例的使用时间戳验证的用于认证回放设备的系统和方法。 一个实施例包括测量系统时钟和远程服务器上的时钟之间的时间差，从回放设备检索至少一个参考时间差，其中参考时间差被存储在回放设备中，确定系统时钟是否为 播放装置通过将所测量的时间差与参考时间差进行比较而获得是有效的，当所测量的时间差有效时，至少检索一个时间戳，其中至少一个时间戳中的每一个被回放装置安全地存储以响应于 并且基于当预定事件发生时回放设备的系统时钟的当前时间，并且基于检索到的时间戳来确定系统时钟是否有效。

    SYSTEMS AND METHODS FOR SECURING CRYPTOGRAPHIC DATA USING TIMESTAMPS
    10.
    发明申请
    SYSTEMS AND METHODS FOR SECURING CRYPTOGRAPHIC DATA USING TIMESTAMPS 有权
    使用时间戳来保存克隆数据的系统和方法

    公开(公告)号：US20130007471A1

    公开(公告)日：2013-01-03

    申请号：US13436930

    申请日：2012-03-31

    申请人： Eric William Grab ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    发明人： Eric William Grab ,  Francis Yee-Dug Chan ,  Michael George Kiefer

    IPC分类号： G06F21/24 ,  G06F12/14

    CPC分类号： G06F21/10 ,  H04L2463/121

    摘要： Systems and methods for authenticating playback devices using timestamp validation in accordance with embodiments of the invention are disclosed. One embodiment includes securely storing at least one timestamp in memory within a playback device in response to the occurrence of at least one predetermined event, where a stored timestamp is based on the current time of a system clock when an event occurs, generating a cryptographic key using the at least one timestamp, securing cryptographic data using the cryptographic key, receiving a request to playback encrypted content, where the encrypted content is accessible using the cryptographic data, accessing the at least one timestamp, generating the cryptographic key, accessing the cryptographic data using at least the cryptographic key, and playing back the content using the playback device.

    摘要翻译： 公开了使用根据本发明的实施例的使用时间戳验证的用于认证回放设备的系统和方法。 一个实施例包括响应于至少一个预定事件的发生，将重放设备内的至少一个时间戳安全地存储在存储器中，其中存储的时间戳基于事件发生时系统时钟的当前时间，产生加密密钥 使用所述至少一个时间戳记，使用所述加密密钥保护加密数据，接收对所述加密内容进行回放的请求，其中使用所述加密数据访问所述加密的内容，访问所述至少一个时间戳，生成所述加密密钥，访问所述加密数据 至少使用加密密钥，并使用回放设备回放内容。