公开(公告)号：EP2801213A1

公开(公告)日：2014-11-12

申请号：EP12821221.4

申请日：2012-12-31

申请人： General Instrument Corporation

发明人： WANG, Yequing ,  LEARY, Patrick J.

IPC分类号： H04N21/436 ,  H04N21/258 ,  H04N21/835 ,  H04N21/443

CPC分类号： H04N21/25816 ,  H04N21/2585 ,  H04N21/43615 ,  H04N21/4367 ,  H04N21/443 ,  H04N21/835

摘要： A source device and method for authenticating a sink device. The source device and method include detecting when the sink device connects to a communication interface and in response to detecting a connected sink device, activating a sink device authentication protocol which authenticates whether the connected sink device is an approved sink device for connecting via the communication interface. The source device determines a level of authentication of the connected sink device from among a first-level authentication and a second-level authentication based on first and second authentication components, respectively derived from different master keys, which affects the type of content provided to the sink device. Responsive to the level of authentication provided through the connected sink device, modifying the content transmitted to the connected sink device, and preventing transfer of any content from the source device to the sink device in response to the sink device not being authenticated.

摘要翻译： 一种用于认证宿设备的源设备和方法。 源设备和方法包括检测宿设备何时连接到通信接口，并且响应于检测到连接的宿设备，激活宿设备认证协议，其认证连接的宿设备是否是经由通信接口进行连接的认可接收设备 。 源设备基于分别从不同的主密钥导出的第一和第二认证组件从第一级认证和第二级认证中确定连接的接收器设备的认证级别，其影响提供给该接口的内容的类型 水槽设备。 响应于通过连接的宿设备提供的认证级别，修改发送到连接的宿设备的内容，以及防止任何内容从源设备到宿设备的响应于宿设备未认证的传输。