| A New Communication Scheme for Threshold Certificate Authority in Ad Hoc Networks |
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| 作者姓名： | LiGuang-song LIHong RANWen-bao |
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| 作者单位： | [1]DepartmentofInformationResearch,InformationEngineeringUniversity,Zhengzhou450002,Henan,China [2]DepartmentofCommunicationEngineering,InformationIr2ngineeringUniversity,Zhengzhou450002,Henan,China |
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| 基金项目： | SupportedbytheNationalNaturalScienceFundationofChina(19971096,90104035) |
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| 摘 要： | We present a new approach to reduce the communication overhead caused by threshold cryptography using modified multieast protocol and certificate proxy technology. Server nodes maintain a few multieast groups proaetively. A client wanting to update its certificate multieasts its request to a server nodes group through its certificate proxy. At periodie intervals, server nodes refresh their shares of the private key of certificate authority using multicast.
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| 关 键 词： | 域值密码 Ad-Hoc网络 密钥管理 认证授权 多址通信 计算机网络安全 |
| 收稿时间： | 30 May 2004 |
A new communication scheme for threshold certificate authority in ad hoc networks |
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| LiGuang-song LIHong RANWen-bao.A New Communication Scheme for Threshold Certificate Authority in Ad Hoc Networks[J].Wuhan University Journal of Natural Sciences,2005,10(1):123-126. |
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| Authors: | Li Guang-song Li Hong Han Wen-bao |
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| Institution: | (1) Department of Information Research, Information Engineering University, 450002 Zhengzhou, Henan, China;(2) Department of Communication Engineering, Information Engineering University, 450002 Zhengzhou, Henan, China |
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| Abstract: | We present a new approach to reduce the communication overhead caused by threshold cryptography using modified multicast protocol and certificate proxy technology. Server nodes maintain a few multicast groups proactively. A client wanting to update its certificate multicasts its request to a server nodes group through its certificate proxy. At periodic intervals, server nodes refresh their shares of the private key of certificate authority using multicast. |
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| Keywords: | Ad hoc networks key management threshold cryptography CA (certificate authority) multicast |
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