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1. 发明申请

US20080201749A1 Method For Authentication On A Subscriber Terminal 审中-公开
标题翻译：用户端认证方法
公开(公告)号：US20080201749A1
公开(公告)日：2008-08-21
申请号：US11572494
申请日：2005-07-21
申请人： Jinming Liu , Degang Ju , Jun Yao , Yonghong Xu , Junling Hu
发明人： Jinming Liu , Degang Ju , Jun Yao , Yonghong Xu , Junling Hu
IPC分类号： H04N7/173
CPC分类号： H04N7/173 , H04N7/1675 , H04N21/25816 , H04N21/4181 , H04N21/63345
摘要： An embodiment of the present invention provides a method for performing authentication on a subscriber terminal in a digital television (DTV) network which comprises at least one subscriber terminal and a head end for sending encrypted DTV program data to each subscriber terminal, the subscriber terminal comprising a set top box (STB) and a subscriber identification module for storing key information for decrypting the DTV program data, the method including: reading, by the STB, the life cycle of the key from the subscriber identification module when the STB starts up; initiating, by the STB, an authentication request to the head end when the life cycle expires; performing, by the head end, authentication after receiving the authentication request, and sending a response message to the STB; receiving, by the STB, the response message, and updating the key information when the response message is a response message which indicates successful authentication.
摘要翻译：本发明的一个实施例提供一种用于在数字电视（DTV）网络中的用户终端上执行认证的方法，该方法包括至少一个用户终端和用于向每个用户终端发送加密的DTV节目数据的头端，所述用户终端包括机顶盒（STB）和用于存储用于解密DTV节目数据的密钥信息的用户识别模块，所述方法包括：当STB启动时由STB从用户识别模块读取密钥的生命周期; 当生命周期到期时，由STB发起对头端的认证请求; 在接收到认证请求之后，通过头端执行认证，并向STB发送响应消息; 由STB接收响应消息，并且当响应消息是指示成功认证的响应消息时更新密钥信息。

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