DIGITAL RIGHTS DOMAIN MANAGEMENT FOR SECURE CONTENT DISTRIBUTION IN A LOCAL NETWORK
    1.
    发明公开
    DIGITAL RIGHTS DOMAIN MANAGEMENT FOR SECURE CONTENT DISTRIBUTION IN A LOCAL NETWORK 有权
    数字版权安全内容分布在本地网络域名管理

    公开(公告)号:EP2596451A1

    公开(公告)日:2013-05-29

    申请号:EP11810374.6

    申请日:2011-07-20

    申请人: Verimatrix, Inc.

    IPC分类号: G06F21/00

    摘要: Systems and methods for secure content distribution, including a content server, a rights management server, a residential gateway communicating with the content server and the rights management server via a network, and a playback device communicating with the residential gateway via a local network. The residential gateway receives protected content from the content server. The playback device requests access to the protected content from the residential gateway. The residential gateway requests access to the protected content from the rights management server by including information uniquely identifying the playback device. The rights management server provides access information to the residential gateway when the access information satisfies predetermined criterion for playback devices associated with the residential gateway. The residential gateway decrypts the protected content using the access information and encrypts the decrypted content for distribution to the playback device via a secure link formed between the residential gateway and the playback device.

    SECURING COMMUNICATION IN A PLAYBACK DEVICE WITH A CONTROL MODULE USING A KEY CONTRIBUTION
    2.
    发明公开
    SECURING COMMUNICATION IN A PLAYBACK DEVICE WITH A CONTROL MODULE USING A KEY CONTRIBUTION 审中-公开
    使用重要贡献在控制模块的回放设备中保密通信

    公开(公告)号:EP3207659A1

    公开(公告)日:2017-08-23

    申请号:EP15851418.2

    申请日:2015-10-15

    申请人: Verimatrix, Inc.

    IPC分类号: H04L9/00

    摘要: Systems and methods for securing communications in a playback device using a key base and at least one key contribution in accordance with embodiments of the invention are disclosed. In one embodiment, a process includes generating a key base using a decryption key and at least one key contribution, where the decryption key can be recovered using the key base and the at least one key contribution, receiving the key base, receiving the at least one key contribution, sending the key base to a decryption module, sending the key contribution to a control module, performing a control feature on the piece of content using the control module, providing the key contribution to the decryption module when the control feature is performed, generating the decryption key using the key base and the at least one key contribution, and accessing at least a portion of the piece of content.

    摘要翻译: 公开了根据本发明实施例的用于使用密钥库和至少一个密钥贡献保护回放设备中的通信的系统和方法。 在一个实施例中,一种过程包括使用解密密钥和至少一个密钥贡献来生成密钥库,其中可以使用密钥库和至少一个密钥贡献来恢复解密密钥,接收密钥基,接收至少 一个关键贡献,将密钥基础发送到解密模块,将密钥贡献发送到控制模块,使用控制模块在该内容上执行控制特征,当执行控制特征时将密钥贡献提供给解密模块 ,使用所述密钥库和所述至少一个密钥贡献来生成所述解密密钥,并且访问所述内容片段的至少一部分。

    DIGITAL RIGHTS DOMAIN MANAGEMENT FOR SECURE CONTENT DISTRIBUTION IN A LOCAL NETWORK

    公开(公告)号:EP2596451B1

    公开(公告)日:2018-11-28

    申请号:EP11810374.6

    申请日:2011-07-20

    申请人: Verimatrix, Inc.

    摘要: Systems and methods for secure content distribution to playback devices connected to a local network via a residential gateway using secure links are disclosed. One embodiment of the invention includes a content server, a rights management server, a residential gateway configured to communicate with the content server and the rights management server via a network, and a playback device configured to communicate with the residential gateway via a local network. In addition, the residential gateway is configured to receive protected content from the content server, the playback device is configured to request access to the protected content from the residential gateway, the residential gateway is configured to request access to the protected content from the rights management server and the request includes information uniquely identifying the playback device, the rights management server is configured to provide access information to the residential gateway when the information uniquely identifying the playback device satisfies at least one predetermined criterion with respect to playback devices associated with the residential gateway, the residential gateway and the playback device are configured to create a secure link between the residential gateway and the playback device via the local network, and the residential gateway is configured to decrypt the protected content using the access information provided by the rights management server and to encrypt the decrypted content for distribution to the playback device via the secure link.

    SYSTEMS AND METHODS FOR USING CONTENT PROTECTION SIGNALING TO COLLECT AUDIENCE MEASUREMENT DATA
    6.
    发明公开
    SYSTEMS AND METHODS FOR USING CONTENT PROTECTION SIGNALING TO COLLECT AUDIENCE MEASUREMENT DATA 审中-公开
    使用内容保护信令来收集听众测量数据的系统和方法

    公开(公告)号:EP3241358A1

    公开(公告)日:2017-11-08

    申请号:EP14909713.1

    申请日:2014-12-31

    申请人: Verimatrix, Inc.

    IPC分类号: H04N21/442

    摘要: Systems and methods for collecting audience measurement data using content protection signaling messages while playing back content are disclosed. One embodiment includes receiving content, where content is encrypted using at least one encryption key, receiving a content protection signaling message, where the content protection signaling message is associated with the content and includes a reference timestamp and decryption information associated with the content, processing the content protection signaling message to extract the reference timestamp and the decryption information and generating a message processing timestamp based on the time the content protection signaling message is processed, collecting audience measurement data and saving the audience measurement data into memory, where the audience measurement data includes the reference timestamp and message processing timestamp, recovering at least one decryption key using the decryption information, and decrypting the content using the at least one decryption key.