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    一种移动多媒体广播业务中节目流密钥加密的方法及系统
    3.
    发明申请
    一种移动多媒体广播业务中节目流密钥加密的方法及系统 审中-公开

    公开(公告)号：WO2009039692A1

    公开(公告)日：2009-04-02

    申请号：PCT/CN2007/003574

    申请日：2007-12-13

    Applicant: 中兴通讯股份有限公司 ,  李凤军 ,  王晔 ,  胡宁

    Inventor： 李凤军 ,  王晔 ,  胡宁

    IPC: H04L9/00

    CPC classification number: H04H60/23 ,  H04L9/065 ,  H04L2209/601 ,  H04L2209/80 ,  H04N7/1675 ,  H04N21/26613 ,  H04N21/6131 ,  H04N21/63345 ,  H04N21/8355

    Abstract: A method and system for encrypting a program stream key in the mobile multimedia broadcast service. The method includes: a multimedia broadcast platform sends a program stream key to a service platform via the connection between the platforms, the service platform judges and encrypts the program stream key using different program stream key encryption manner according to the particular mobile network of a service object, the service platform sends the encrypted program stream key to the multimedia broadcast platform via the connection between the platforms again. The system uses the method. By using the different program stream key encryption manner after the service platform judges the different service object, the method and system make the operators of the different mobile network only need to construct a set of a mobile phone TV service platform and the multimedia broadcast platform to provide the mobile phone TV service to the user of the different mobile network. The construction cost is reduced and the system maintenance is favorable.

    移动多媒体广播业务中内容密钥的加密方法及系统
    4.
    发明申请
    移动多媒体广播业务中内容密钥的加密方法及系统 审中-公开

    公开(公告)号：WO2009039691A1

    公开(公告)日：2009-04-02

    申请号：PCT/CN2007/003572

    申请日：2007-12-13

    Applicant: 中兴通讯股份有限公司 ,  王晔 ,  李凤军 ,  胡宁

    Inventor： 王晔 ,  李凤军 ,  胡宁

    IPC: H04L9/00 ,  H04Q7/00

    CPC classification number: H04L63/061 ,  H04L2463/062 ,  H04W12/02 ,  H04W12/04

    Abstract: A method for encrypting the content key in a mobile multimedia broadcast service includes that: a content distribution platform transmits a content key of a content flow and a content ID which identifies the content flow to a mobile service management platform; the mobile service management platform obtains a service key according to the content ID of the content flow and encrypts the content key of the content flow with the service key; the mobile service management platform transmits the encrypted content key of the content flow to the content distribution platform. A system for encrypting the content key in the mobile multimedia broadcastservice is provided by the present invention. The present invention can match the content ID of the content flow with the service ID of the multimedia broadcast automatically and avoid the error caused by manual stepping in the system.

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