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A Traceable and Anonymous Authentication Scheme Based on ECC

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Based on elliptic curve public key cryptosystem and with the help of ring signature,a traceable and anonymous authen-tication scheme is proposed.The security of the proposed scheme is based on the difficulty of solving elliptic curve discrete loga-rithm problem(ECDLP)and the computational Diffie-Hellman assumption(CDHA).In order to prevent random tracing,the threshold technology is introduced into anonymous tracing.In addition,in the signature generation process,using the private key and the additional random number,the signature satisfies un-forgeability.Compared with the existing schemes,the communi-cation overhead of the proposed scheme is relatively small.In the case of similar calculational overhead,the proposed scheme not only has anonymous authentication,signature unforgeability,but also has threshold traceability.

anonymous authenticationtraceabilitythresholdECCring signature

YIN Fengmei、HOU Zhengfeng、WU Hao

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School of Computer Science and Technology,Hefei Normal University,Hefei 230601,Anhui,China

School of Computer and Information,Hefei University of Technology,Hefei 230009,Anhui,China

Supported by the Key Natural Science Foundation of Anhui Higher Education InstitutionsSupported by the Key Natural Science Foundation of Anhui Higher Education InstitutionsNature Science Youth Foundation of Anhui ProvinceKey Pro-jects of Support Program for Outstanding Youth Talent of Universities in Anhui Province

KJ2017A857KJ2019A07271708085QF157gxyq2017050

2020

10.19823/j.cnki.1007-1202.2020.0067

武汉大学自然科学学报(英文版)
武汉大学

武汉大学自然科学学报(英文版)

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影响因子：0.066
ISSN：1007-1202
年,卷(期)：2020.25(6)
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