Cryptanalysis of a Blind Proxy Signature Scheme

CAO Zheng-Jun; LIU Mu-Lan

doi:10.7523/j.issn.2095-6134.2006.2.005

Journal of University of Chinese Academy of Sciences >

2006 , Vol. 23 >Issue 2: 145 - 148

DOI: https://doi.org/10.7523/j.issn.2095-6134.2006.2.005

论文

Cryptanalysis of a Blind Proxy Signature Scheme

CAO Zheng-Jun ,
LIU Mu-Lan

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Key Lab of Mathematics Mechanization, Institute of System Science，
Academy of Mathematics and Systems Science， Chinese Academy of Sciences，
Beijing，P.R. China. 100080.

Received date: 1900-01-01

Revised date: 1900-01-01

Online published: 2006-03-15

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Abstract

The blind proxy signature scheme proposed in [1] is insecure. Managing center C cannot reveal the identity of the actual proxy signer of a given proxy signature. Besides，C and the original signer A can conspire to generate valid proxy signatures and impose them on an arbitrary proxy signer by using the identifying equation.

Key words： blind proxy signature; group signature.

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CAO Zheng-Jun , LIU Mu-Lan . Cryptanalysis of a Blind Proxy Signature Scheme[J]. Journal of University of Chinese Academy of Sciences, 2006 , 23(2) : 145 -148 . DOI: 10.7523/j.issn.2095-6134.2006.2.005

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