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    • 2. 发明授权
    • Cable network system and method for controlling security in cable network encrypted dynamic multicast session
    • 有线网络系统和控制电缆网络加密动态组播会话安全的方法
    • US08190887B2
    • 2012-05-29
    • US12190661
    • 2008-08-13
    • Han Seung KooO Hyung KwonYun Jeong SongSoo In Lee
    • Han Seung KooO Hyung KwonYun Jeong SongSoo In Lee
    • G06F11/30
    • H04L63/065H04L12/2861
    • A security control method in a cable network dynamic multicast session, and more particularly, a method of controlling forward secrecy and backward secrecy in a Data Over Cable Service Interface Specifications (DOCSIS) 3.0 network dynamic multicast session is provided. A security control method in a cable network dynamic multicast session, includes: maintaining a multicast group that is allocated with a first Downstream Service Identifier (DSID) and a first Security Association Identifier (SAID) and that is joined by a first cable modem and a second cable modem; receiving a LeaveMulticastSession message from the second cable modem; exchanging, corresponding to the LeaveMulticastSession message, a Dynamic Bonding Change (DBC) message for changing a multicast parameter with the second cable modem; and updating a first Traffic Encryption Key (TEK) corresponding to the first DSID with a second TEK.
    • 提供了一种有线网络动态多播会话中的安全控制方法,特别是提供了一种在数据有线服务接口规范(DOCSIS)3.0网络动态多播会话中控制前向保密和向后保密的方法。 有线网络动态多播会话中的安全控制方法包括:维护被分配有第一下行业务标识符(DSID)和第一安全关联标识符(SAID)的组播组,并由第一电缆调制解调器和 第二个电缆调制解调器 从所述第二电缆调制解调器接收LeaveMulticastSession消息; 交换对应于LeaveMulticastSession消息的动态绑定改变(DBC)消息,用于利用第二电缆调制解调器改变多播参数; 以及用第二TEK更新对应于所述第一DSID的第一业务加密密钥(TEK)。
    • 3. 发明授权
    • Method of configuring hierarchical network of user group and resource group and key distribution center
    • 配置用户组和资源组和密钥分发中心的分层网络的方法
    • US08032926B2
    • 2011-10-04
    • US11978877
    • 2007-10-30
    • Han Seung KooYun Jeong SongSoo In Lee
    • Han Seung KooYun Jeong SongSoo In Lee
    • H04L29/00H04L9/08
    • H04L41/00H04L63/062H04L63/104
    • Provided are a method of configuring a hierarchical network of user groups and resource groups, and a key distribution center. The method includes the steps of: analyzing hierarchical connection relationships between respective user groups and respective resource groups, comparing redundancy rates of the respective hierarchical connection relationships, and determining a connection mode having a larger redundancy rate; separating the respective user groups and resource groups and hierarchically connecting the user groups with the resource groups, according to the determined connection mode; comparing hierarchical connections between the respective separated user groups and resource groups, and removing an overlapping hierarchical connection; and recombining the separate hierarchical connections except for the overlapping hierarchical connection, and configuring an entire network.
    • 提供了一种配置用户组和资源组的分层网络以及密钥分配中心的方法。 该方法包括以下步骤:分析各个用户组与各个资源组之间的分层连接关系,比较各分级连接关系的冗余率,并确定冗余率较大的连接模式; 根据所确定的连接模式,分离各个用户组和资源组,并将用户组与资源组分层连接; 比较各个分离的用户组和资源组之间的分层连接,以及移除重叠的分级连接; 并重新组合除了重叠的分层连接之外的单独的分层连接,以及配置整个网络。
    • 8. 发明授权
    • Remote entitlement processing module integration processing device and method
    • 远程授权处理模块集成处理设备及方法
    • US08644505B2
    • 2014-02-04
    • US13315777
    • 2011-12-09
    • Han Seung Koo
    • Han Seung Koo
    • H04N7/167
    • H04N21/6587H04N21/42684H04N21/63345
    • There is provided a remote entitlement processing module integration processing device. The remote entitlement processing module integration processing device includes: a remote entitlement processing module generating and managing remote smart cards (RSCs) having the number corresponding to the number of host terminals managed by the remote entitlement processing module integration processing device; and a descrambler transferring channel selection information in response to a selection of a pay channel by a user to the remote entitlement processing module and descrambling a scrambled channel signal using a control word (CW) received as a response to the channel selection information, thereby making it possible to minimize dependency between a subscriber device and a conditional access system.
    • 提供了远程授权处理模块集成处理设备。 远程授权处理模块集成处理设备包括:远程授权处理模块,生成和管理具有对应于远程授权处理模块集成处理设备管理的主机终端数量的远程智能卡(RSC); 以及解扰器,响应于用户对远程授权处理模块的付费频道的选择来传送频道选择信息,并且使用作为对频道选择信息的响应而接收的控制字(CW)对加扰频道信号进行解扰,由此 可以最小化订户设备和条件访问系统之间的依赖关系。