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    • 2. 发明申请
    • PROXY MODULES
    • 代用模块
    • WO2014117851A1
    • 2014-08-07
    • PCT/EP2013/051963
    • 2013-01-31
    • IRDETO B.V.
    • WESTERVELD, EgbertDEKKER, Hans
    • H04H60/23H04N21/266H04N21/4623
    • H04H60/23H04N21/26606H04N21/4623
    • There is described a proxy module for use in a head-end. The head-end comprises an entitlement control message (ECM) generator arranged to generate ECMs. The head-end further comprises an encryption module arranged to encrypt content using a control word. The proxy module is arranged to: access a content control word; use the ECM generator to generate a content ECM including the content control word; generate a supplementary control word; use the ECM generator to generate a supplementary ECM including the supplementary control word; use the encryption module to encrypt the content ECM using the supplementary control word; and use the encryption module to encrypt content using the content control word. A corresponding method of providing encrypted content is also provided. There is also described a proxy module for use in a receiver arranged to receive entitlement control messages (ECMs) and encrypted content. The receiver comprises a secured module arranged to process an ECM so as to provide a control word. The receiver further comprises a decryption module arranged to decrypt encrypted content using a control word. The proxy module is arranged to: use the secured module to obtain a supplementary control word from a supplementary ECM; use the supplementary control word in the decryption module to obtain a content ECM from an encrypted version of the content ECM; use the secured module to obtain a content control word from the content ECM; and use the content control word in the decryption module to decrypt encrypted content. A corresponding method of enabling a receiver to access encrypted content is also provided.
    • 描述了用于头端的代理模块。 头端包括布置成产生ECM的授权控制消息(ECM)生成器。 前端还包括被配置为使用控制字加密内容的加密模块。 所述代理模块被配置为:访问内容控制字; 使用ECM发生器生成包含内容控制字的内容ECM; 产生补充控制字; 使用ECM发生器生成包括补充控制字的补充ECM; 使用加密模块使用补充控制字加密内容ECM; 并使用加密模块使用内容控制字加密内容。 还提供了提供加密内容的相应方法。 还描述了一种代理模块,用于接收被配置为接收授权控制消息(ECM)和加密内容的接收器。 所述接收机包括被安排为处理ECM以便提供控制字的安全模块。 所述接收机还包括解密模块,其被配置为使用控制字对加密的内容进行解密。 代理模块被设置为:使用安全模块从补充ECM获得补充控制字; 使用解密模块中的辅助控制字从内容ECM的加密版本获得内容ECM; 使用安全模块从内容ECM获取内容控制字; 并使用解密模块中的内容控制字解密加密的内容。 还提供使得接收机能够访问加密的内容的相应方法。
    • 10. 发明申请
    • DEVICE FOR ROUTING DIGITAL DATA FLOWS AND IN PARTICULAR FOR ROUTING PACKET TRANSMISSION DATA FLOWS
    • 用于路由数据流的设备,特别是用于路由分组传输数据流的设备
    • WO02019580A1
    • 2002-03-07
    • PCT/FR2001/002696
    • 2001-08-30
    • H04H20/63H04H60/23H04H1/00
    • H04H20/63H04H60/23
    • The invention concerns a device for routing digital data flows. It consists of a box (4) equipped with a tuner (6') connected to a satellite antenna (7') or a data distribution network, a packet demultiplexer for receiving digital data, and means for connecting it to a digital decoder (1) and to a computer (3) as well as a routing unit (9) for interconnecting all the digital flow inputs or outputs, from and to the digital decoder (1), from and to the computer (3), and from the tuner (6'). The invention concerns the digital transmission of all types of data, and in particular transmissions using packet coding consisting of a set of data routed in blocks in a network, whether radio, cable or satellite.
    • 本发明涉及用于路由数字数据流的设备。 它包括配备有连接到卫星天线(7')或数据分配网络的调谐器(6')的盒(4),用于接收数字数据的分组解复用器,以及用于将其连接到数字解码器 )和计算机(3)以及路由单元(9),用于从数字解码器(1)从计算机(3)和从调谐器(3)互连所有数字流输入或输出到数字解码器(1) (6' )。 本发明涉及所有类型的数据的数字传输,特别是使用分组编码的传输,包括由无线电,有线或卫星的网络中的块中路由的一组数据组成。