Cryptanalysis and Improvement on a Threshold Proxy Signature Scheme

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	Cryptanalysis and Improvement on a Threshold Proxy Signature Scheme
	Tan, Zuo-Wen 1,2; Liu, Zhuo-Jun 3
	2009-03-01
发表期刊	JOURNAL OF INFORMATION SCIENCE AND ENGINEERING
ISSN	1016-2364
卷号	25 期号:2 页码:619-631
摘要	In a (t, n) threshold proxy signature scheme, an original signer can delegate the signature authority to a proxy group of n member Such that t or more than t proxy signers can cooperatively sign messages on behalf of the original signer, but t - 1 or fewer proxy signers cannot generate a valid proxy signature. In this paper, we review the security of C. L. Hsu et al.'s threshold proxy signature schemes with known signers. We show that the threshold proxy signature scheme is insecure against forgery attack. C. L. Hsu et al.'s threshold proxy signature scheme is universally forgeable. A new improvement scheme is proposed. The new scheme remedies its weakness. Our proposed threshold proxy signature is secure against chosen message attacks and chosen warrant attacks in the random oracle model tinder DL assumption.
关键词	proxy signature threshold signature forgery attack universally forgeable random oracle model DL assumption
语种	英语
资助项目	Jiangxi Province Education Department[273] ; National Natural Science Foundation of China[10701040] ; National Key Technology RD Program[2006BAJ05A01]
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems
WOS记录号	WOS:000264539900019
出版者	INST INFORMATION SCIENCE
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/8094
专题	中国科学院数学与系统科学研究院
通讯作者	Tan, Zuo-Wen
作者单位	1.Jiangxi Univ Finance & Econ, Coll Informat Management, Nanchang 330013, Jiangxi, Peoples R China 2.Chinese Acad Sci, State Key Lab Informat Secur, Inst Software, Beijing 100190, Peoples R China 3.Chinese Acad Sci, KLMM, AMSS, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Tan, Zuo-Wen,Liu, Zhuo-Jun. Cryptanalysis and Improvement on a Threshold Proxy Signature Scheme[J]. JOURNAL OF INFORMATION SCIENCE AND ENGINEERING,2009,25(2):619-631.
APA	Tan, Zuo-Wen,&Liu, Zhuo-Jun.(2009).Cryptanalysis and Improvement on a Threshold Proxy Signature Scheme.JOURNAL OF INFORMATION SCIENCE AND ENGINEERING,25(2),619-631.
MLA	Tan, Zuo-Wen,et al."Cryptanalysis and Improvement on a Threshold Proxy Signature Scheme".JOURNAL OF INFORMATION SCIENCE AND ENGINEERING 25.2(2009):619-631.