Anonymous Transferable Conditional E-cash

Jiangxiao Zhang; Zhoujun Li; Hua Guo

Security and Privacy in Communication Networks. 8th International ICST Conference, SecureComm 2012, Padua, Italy, September 3-5, 2012. Revised Selected Papers

Research Article

Anonymous Transferable Conditional E-cash

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@INPROCEEDINGS{10.1007/978-3-642-36883-7_4,
    author={Jiangxiao Zhang and Zhoujun Li and Hua Guo},
    title={Anonymous Transferable Conditional E-cash},
    proceedings={Security and Privacy in Communication Networks. 8th International ICST Conference, SecureComm 2012, Padua, Italy, September 3-5, 2012. Revised Selected Papers},
    proceedings_a={SECURECOMM},
    year={2013},
    month={2},
    keywords={conditional e-cash transferability anonymity Groth-Sahai proofs commuting signatures},
    doi={10.1007/978-3-642-36883-7_4}
}

Jiangxiao Zhang
Zhoujun Li
Hua Guo
Year: 2013
Anonymous Transferable Conditional E-cash
SECURECOMM
Springer
DOI: 10.1007/978-3-642-36883-7_4

Jiangxiao Zhang^,*, Zhoujun Li^,*, Hua Guo¹^,*

1: Beihang University

*Contact email: orange_0092008@163.com, zhoujun.li@263.net, hguo@buaa.edu.cn

Abstract

We present the first anonymous transferable conditional e-cash system based on two recent cryptographic primitives, i.e., the Groth-Sahai(GS) proofs system and the commuting signatures, thus the unlinkability and anonymity of the user is obtained. We solve an open problem by dividing the deposit into two parts, so that the user is unlinkable in the transferrable protocol and the deposit protocol. Comparing the existing conditional e-cash, the size of the computation and communication of our scheme is constant.

Keywords: conditional e-cash transferability anonymity Groth-Sahai proofs commuting signatures

Published: 2013-02-15

: http://dx.doi.org/10.1007/978-3-642-36883-7_4