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21. 发明授权

US08515074B2 User key allocation method for broadcast encryption 失效
标题翻译：广播加密的用户密钥分配方法
公开(公告)号：US08515074B2
公开(公告)日：2013-08-20
申请号：US11648608
申请日：2007-01-03
申请人： Bae-eun Jung , Maeng-hee Sung , Weon-il Jin , Hee-jean Kim
发明人： Bae-eun Jung , Maeng-hee Sung , Weon-il Jin , Hee-jean Kim
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L2209/601 , H04N21/2347 , H04N21/26613 , H04N21/63345
摘要： A user key allocation method for broadcast encryption is provided. The user key allocation method includes generating a plurality of subsets by dividing one group including a plurality of nodes to sub-groups and allocating key sets with respect to the subsets, respectively. The nodes included in the subset may be odd nodes and even nodes of the nodes of the group. The nodes are arranged so that privileged nodes are consecutive or there is only one privileged node. Accordingly, it is possible to reduce the data size transmitted from the server to the nodes by constituting one or more subsets from the nodes consecutively arranged and providing key sets with respect to the subsets.
摘要翻译：提供用于广播加密的用户密钥分配方法。用户密钥分配方法包括通过将包括多个节点的一个组划分成子组并且分别相对于子集分配密钥集来生成多个子集。包括在子集中的节点可以是组的节点的奇数节点和偶数节点。这些节点被布置成使得特权节点是连续的，或者只有一个特权节点。因此，通过从连续排列的节点构成一个或多个子集，并且相对于子集提供密钥集，可以减少从服务器发送到节点的数据大小。

22. 发明授权

US07716482B2 Conference session key distribution method in an ID-based cryptographic system 失效
标题翻译：基于ID的加密系统中的会议密钥分发方法
公开(公告)号：US07716482B2
公开(公告)日：2010-05-11
申请号：US10968012
申请日：2004-10-20
申请人： Bae-eun Jung , Dae-youb Kim
发明人： Bae-eun Jung , Dae-youb Kim
IPC分类号： H04L9/32 , H04L9/00 , H04L9/08
CPC分类号： H04L9/0847 , H04L9/3073
摘要： A conference session key distribution method used in an ID-based cryptographic system includes selecting two different temporary secret keys, generating a message and generating session key generation variables using the temporary secret keys of a session initiating party. Only valid participating parties receive the session key generation variables. Each party determines the session shared key from the session key generation variables.
摘要翻译：在基于ID的加密系统中使用的会议密钥分发方法包括选择两个不同的临时秘密密钥，使用会话发起方的临时秘密密钥生成消息和生成会话密钥生成变量。只有有效的参与方接收会话密钥生成变量。每一方从会话密钥生成变量确定会话共享密钥。

23. 发明申请

US20070291948A1 User key allocation method for broadcast encryption 失效
标题翻译：广播加密的用户密钥分配方法
公开(公告)号：US20070291948A1
公开(公告)日：2007-12-20
申请号：US11648608
申请日：2007-01-03
申请人： Bae-eun Jung , Maeng-hee Sung , Weon-il Jin , Hee-jean Kim
发明人： Bae-eun Jung , Maeng-hee Sung , Weon-il Jin , Hee-jean Kim
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L2209/601 , H04N21/2347 , H04N21/26613 , H04N21/63345
摘要： A user key allocation method for broadcast encryption is provided. The user key allocation method includes generating a plurality of subsets by dividing one group including a plurality of nodes to sub-groups and allocating key sets with respect to the subsets, respectively. The nodes included in the subset may be odd nodes and even nodes of the nodes of the group. The nodes are arranged so that privileged nodes are consecutive or there is only one privileged node. Accordingly, it is possible to reduce the data size transmitted from the server to the nodes by constituting one or more subsets from the nodes consecutively arranged and providing key sets with respect to the subsets.
摘要翻译：提供用于广播加密的用户密钥分配方法。用户密钥分配方法包括通过将包括多个节点的一个组划分成子组并且分别相对于子集分配密钥集来生成多个子集。包括在子集中的节点可以是组的节点的奇数节点和偶数节点。这些节点被布置成使得特权节点是连续的，或者只有一个特权节点。因此，通过从连续排列的节点构成一个或多个子集，并且相对于子集提供密钥集，可以减少从服务器发送到节点的数据大小。

24. 发明申请

US20070019807A1 Method for generating group key 有权
标题翻译：生成组密钥的方法
公开(公告)号：US20070019807A1
公开(公告)日：2007-01-25
申请号：US11410245
申请日：2006-04-25
申请人： Bae-eun Jung
发明人： Bae-eun Jung
IPC分类号： H04L9/00
CPC分类号： H04L63/065 , H04L9/0833 , H04L9/0861 , H04L2209/805
摘要： A method is provided for generating a group key, including sharing a plurality of secrete keys with a plurality of nodes adjacent to a first node of the plurality of nodes, obtaining a plurality of function values using the plurality of secrete keys and a result value using the plurality of function values, broadcasting the result value, receiving a plurality of result values generated using a method by which the result value has been obtained, from nodes of the plurality of nodes except for a corresponding node, and obtaining a group key using a plurality of function values extracted from the plurality of function values and the plurality of result values.
摘要翻译：提供了一种用于生成组密钥的方法，包括与多个节点相邻的多个节点共享多个分密密钥，使用多个分离密钥获得多个功能值，并使用多个功能值，广播结果值，接收使用已经获得结果值的方法生成的多个结果值，除了对应节点之外的多个节点的节点，以及使用从多个功能值和多个结果值提取的多个功能值。

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