[Resource Topic] 2019/1360: Sashimi: Cutting up CSI-FiSh secret keys to produce an actively secure distributed signing protocol

Welcome to the resource topic for 2019/1360

Title:
Sashimi: Cutting up CSI-FiSh secret keys to produce an actively secure distributed signing protocol

Authors: Daniele Cozzo, Nigel P. smart

Abstract:

We present the first actively secure variant of a distributed signature scheme based on isogenies. The protocol produces signatures from the recent CSI-FiSh signature scheme. Our scheme works for any access structure, as we use a replicated secret sharing scheme to define the underlying secret sharing; as such it is only practical when the number of maximally unqualified sets is relatively small. This, however, includes the important case of full threshold, and (n,t)-threshold schemes when n is small.

ePrint: https://eprint.iacr.org/2019/1360

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .