Module schnorr::feldman_vss

Fast Multiparty Threshold ECDSA with Fast Trustless Setup In a verifiable secret sharing scheme, auxiliary information is published that allows players to check that their shares are consistent and define a unique secret. Feldman’s VSS is an extension of Shamir secret sharing in which the dealer also publishes vi=gai inGforalli∈[1,t]andv0=gσ inG. If the check does not hold for any player, it raises a complaint and the protocol terminates. Note that this is different than the way Feldman VSS was originally presented as it assumed an honest majority and could recover if a dishonest player raised a complaint. However, since we assume dishonest majority in this paper, the protocol will abort if a complaint is raised.

Structs

ShamirSecretSharing
VerifiableSS	Feldman VSS, based on Paul Feldman. 1987. A practical scheme for non-interactive verifiable secret sharing. In Foundations of Computer Science, 1987., 28th Annual Symposium on.IEEE, 427–43