Abstract
In this paper, we propose a novel scheme to prove the correctness of mix-net that is composed of multiple shufflings, in such a way that the computational complexity of its verifier does not depend on the number of its composite shufflings. We call this scheme an aggregate shuffle argument scheme. Although a similar scheme proposed by Abe in Eurocrypt 1998 exists, our scheme is much more efficient. In fact, the computational cost required for the verifier in our scheme is less than 1/60 of that in Abe’s scheme. This is mainly because our scheme exploits the efficient shuffle arguments proposed of Furukawa et al. in Crypto 2001 while Abe’s scheme exploits the shuffle proof proposed by Sako et al. in Eurocrypt 1995. We also proposed a formal model and security requirements of aggregate shuffle argument schemes.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-3-540-77366-5_37
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Furukawa, J., Imai, H. (2007). An Efficient Aggregate Shuffle Argument Scheme. In: Dietrich, S., Dhamija, R. (eds) Financial Cryptography and Data Security. FC 2007. Lecture Notes in Computer Science, vol 4886. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77366-5_25
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