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A CCA-secure Verifiable Mix-Net

Authors :
Shao-Feng Fu
Long-Hai Li
Chengqiang Huang
Source :
NaNA
Publication Year :
2017
Publisher :
IEEE, 2017.

Abstract

A mix-net is an important cryptographic tool in schemes requiring anonymity of messages, such as in secure e-voting and e-auction schemes. In this paper, we present a novel mix-net protocol which achieves stronger security and satisfies both public verifiability and sender verifiability. Our mix-net is constructed based on Wikstrom's scheme and strengthens its se-curity by introducing an improved key generation procedure and proposing a new method for constructing zero knowledge proof of secret shuffle. It is proved to be CCA-secure under the assumption of random oracle. Compared with previous mix-net schemes which are CCA-secure, the proposed protocol does not require any trusted center, and incurs fewer inter-actions between servers which resulting in a lower computation and communication complexity.

Details

Database :
OpenAIRE
Journal :
2017 International Conference on Networking and Network Applications (NaNA)
Accession number :
edsair.doi...........acb89f5e202d672d13d642e5622e5198
Full Text :
https://doi.org/10.1109/nana.2017.57