| Identity Based Group Key Agreement in Multiple PKG Environment |
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| 作者姓名： | WANG Liming WU Chuankun |
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| 作者单位： | [1]Institute of Software, Chinese Academy of Sciences, Beijing 100080, China [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金 |
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| 摘 要： | Secure and reliable group communication is an increasingly active research area by growing popularity in group-oriented and collaborative applications. In this paper, we propose the first identity-based authenticated group key agreement in multiple private key generators （PKG） environment. It is inspired on a new two-party identity-based key agreement protocol first proposed by Hoonjung Lee et al. In our scheme, although each member comes from different domain and belongs to different PKGs which do not share the common system parameters, they can agree on a shared secret group key. We show that our scheme satisfies every security requirements of the group key agreement protocols.
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| 关 键 词： | 组密钥 密钥协议 多点传送 双线性配对 PKG |
| 文章编号： | 1007-1202（2006）06-1605-04 |
| 收稿时间： | 2006-04-20 |
Identity based group key agreement in multiple PKG environment |
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| WANG Liming WU Chuankun.Identity Based Group Key Agreement in Multiple PKG Environment[J].Wuhan University Journal of Natural Sciences,2006,11(6):1605-1608. |
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| Authors: | Wang Liming Wu Chuankun |
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| Institution: | (1) Institute of Software, Chinese Academy of Sciences, 100080 Beijing, China;(2) Graduate University of Chinese Academy of Sciences, 100049 Beijing, China |
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| Abstract: | Secure and reliable group communication is an increasingly active research area by growing popularity in group-oriented and collaborative applications. In this paper, we propose the first identity-based authenticated group key agreement in multiple private key generators (PKG) environment. It is inspired on a new two-party identity-based key agreement protocol first proposed by Hoonjung Lee et al. In our scheme, although each member comes from different domain and belongs to different PKGs which do not share the common system parameters, they can agree on a shared secret group key. We show that our scheme satisfies every security requirements of the group key agreement protocols. |
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| Keywords: | group key agreement multicast bilinear pairing |
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