Volume 8 Number 4 (Apr. 2013)
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JCP 2013 Vol.8(4): 833-841 ISSN: 1796-203X
doi: 10.4304/jcp.8.4.833-841

Controllable Ring Signatures and Its Application to E-Prosecution

Wei Gao1, 2, Guilin Wang3, Xueli Wang4, and Dongqing Xie5
1 Department of Computer Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2 Department of Mathematics and Informatics, Ludong University, Yantai 264025, China
3 School of Computer Science & Software Engineering, University of Wollongong , Wollongong NSW 2522, Australia
4 School of Mathematics, South China Normal University, Guangzhou 510631, China
5 School of Computer Science & Education Software, Guangzhou University , Guangzhou 510006, China


Abstract—This paper introduces a new concept called controllable ring signature which is ring signature with additional properties as follow. (1) Anonymous identification: by an anonymous identification protocol, the real signer can anonymously prove his authorship of the ring signature to the verifier. And this proof is non-transferable. (2) Linkable signature: the real signer can generate an anonymous signature such that every one can verify whether both this anonymous signature and the ring signature are generated by the same anonymous signer. (3) Convertibility: the real signer can convert a ring signature into an ordinary signature by revealing the secret information about the ring signature. These additional properties can fully ensure the interests of the real signer. Especially, compared with a standard ring signature, a controllable ring signature is more suitable for the classic application of leaking secrets. We construct a controllable ring signature scheme which is provably secure according to the formal definition. As an application, we design a E-prosecution scheme based on this controllable ring signature scheme and show its security.

Index Terms—Certificateless cryptography; certificateless threshold decryption; provable security; random oracle model; bilinear pairing

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Cite: Wei Gao, Guilin Wang, Xueli Wang, and Dongqing Xie, " Controllable Ring Signatures and Its Application to E-Prosecution," Journal of Computers vol. 8, no. 4, pp. 833-841, 2013.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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