threshold password-based authenticated group key exchange in     gateway-oriented setting

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	threshold password-based authenticated group key exchange in gateway-oriented setting
	Li Hui; Wu Chuan-Kun; Wei Lingbo
	2010
会议名称	6th International Conference on Information Security Practice and Experience
会议录名称	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
页码	324-340
会议日期	MAY 12-13,
会议地点	Seoul, SOUTH KOREA
出版地	HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
出版者	INFORMATION SECURITY PRACTICE AND EXPERIENCE, PROCEEDINGS
ISSN	0302-9743
ISBN	978-3-642-12826-4
部门归属	Li, Hui; Wu, Chuan-Kun Chinese Acad Sci, State Key Lab Informat Secur, Inst Software, Beijing 100190, Peoples R China.
摘要	In this paper, we extend Abdalla et al. s work in Asiacrypt 2005 to group-based setting. Our goal is to allow a group of users to establish a shared session key with a gateway under the assistance of an authentication server, while the server has no information about this session key and the gateway has no information about any password. Distinct to ordinary password-based group key exchange protocols, different shares of a groupwise password are assigned to group users respectively in our protocol. Each share is also a human-memorable password. According to our protocol, a group of at least k (a predefined threshold) users is authorized to establish a key with gateway. Additionally, the new protocol is proven secure in random-oracle model.
关键词	Information Dissemination Network Protocols Network Security Security Systems
主办者	Korea Internet & Security Agcy, Elect & Telecommun Res Inst, Korea Inst Informat Security & Cryptography, Korea Commun Commiss
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/8938
专题	信息安全国家重点实验室
推荐引用方式 GB/T 7714	Li Hui,Wu Chuan-Kun,Wei Lingbo. threshold password-based authenticated group key exchange in gateway-oriented setting[C]. HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY:INFORMATION SECURITY PRACTICE AND EXPERIENCE, PROCEEDINGS,2010:324-340.

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