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	ExBLACR: Extending BLACR system
	Wang, Weijin (1) ; Feng, Dengguo (1) ; Qin, Yu (1) ; Shao, Jianxiong (1) ; Xi, Li (1) ; Chu, Xiaobo (1)
	2014
会议名称	19th Australasian Conference on Information Security and Privacy, ACISP 2014
会议日期	July 7, 2014 - July 9, 2014
会议地点	Wollongong, NSW, Australia
页码	397-412
中文摘要	Reputation-based anonymous blacklisting systems allow users to anonymously authenticate their identities with a service provider (SP) directly, while enabling the service provider to score users' misbehaviour and deny access from users with insufficient reputation, without the assistance of a Trusted Third Party (TTP). Au, Kapadia and Susilo's reputation-based anonymous blacklisting system BLACR is an elegant solution except for the linear computational overhead in the size of the reputation list. Therefore, they proposed a more practical strategy for BLACR that allows active users to authenticate in the express lane. However, the strategy disables BLACR's ability to perform unblacklisting since removing entries from the blacklist invalidates the reputation proofs of express lane tokens. Another problem of BLACR is that the express lane tokens can be reused (replay attack). In this paper, we propose ExBLACR, which provides a solution to the above problems. Our construction directly builds from BLACR and we present an improvement of weighted-score adjusting protocol () to support unblacklisting when BLACR employs the express lane authentication. We also make a minor change to the express lane tokens to resist replay attack. © 2014 Springer International Publishing Switzerland.
英文摘要	Reputation-based anonymous blacklisting systems allow users to anonymously authenticate their identities with a service provider (SP) directly, while enabling the service provider to score users' misbehaviour and deny access from users with insufficient reputation, without the assistance of a Trusted Third Party (TTP). Au, Kapadia and Susilo's reputation-based anonymous blacklisting system BLACR is an elegant solution except for the linear computational overhead in the size of the reputation list. Therefore, they proposed a more practical strategy for BLACR that allows active users to authenticate in the express lane. However, the strategy disables BLACR's ability to perform unblacklisting since removing entries from the blacklist invalidates the reputation proofs of express lane tokens. Another problem of BLACR is that the express lane tokens can be reused (replay attack). In this paper, we propose ExBLACR, which provides a solution to the above problems. Our construction directly builds from BLACR and we present an improvement of weighted-score adjusting protocol () to support unblacklisting when BLACR employs the express lane authentication. We also make a minor change to the express lane tokens to resist replay attack. © 2014 Springer International Publishing Switzerland.
收录类别	EI
会议录出版地	Springer Verlag
语种	英语
ISSN号	3029743
ISBN号	9783319083438
内容类型	会议论文
源URL	[http://ir.iscas.ac.cn/handle/311060/16602]
专题	软件研究所_软件所图书馆_会议论文
推荐引用方式 GB/T 7714	Wang, Weijin ,Feng, Dengguo ,Qin, Yu ,et al. ExBLACR: Extending BLACR system[C]. 见:19th Australasian Conference on Information Security and Privacy, ACISP 2014. Wollongong, NSW, Australia. July 7, 2014 - July 9, 2014.

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