Building on the Gennaro & Goldfeder and Lindell & Nof protocols (CCS'18), we present two
threshold ECDSA protocols, for any number of signatories and any threshold, that improve …

Threshold signatures are a crucial tool for many distributed protocols. As shown by Cachin,
Kursawe, and Shoup (PODC'00), schemes with unique signatures are of particular …

Although they have been studied for a long time, distributed signature protocols have
garnered renewed interest in recent years in view of novel applications to topics like …

We present a three-round protocol for threshold ECDSA signing with malicious security
against a dishonest majority, which information-theoretically UC-realizes a standard …

Cryptocurrency exchange services are either trusted central entities that have been routinely
hacked (losing over 8 billion USD), or decentralized services that make all orders public …

Threshold ECDSA signatures have received much attention in recent years due to the
widespread use of ECDSA in cryptocurrencies. While various protocols now exist that admit …

Threshold Signatures allow n parties to share the power of issuing digital signatures so that
any coalition of size at least t+ 1 can sign, whereas groups of t or less players cannot. Over …

Bitcoin and other cryptocurrencies have recently introduced support for Schnorr signatures
whose cleaner algebraic structure, as compared to ECDSA, allows for simpler and more …

Threshold signatures have recently seen a renewed interest due to applications in
cryptocurrency while NIST has released a call for multi-party threshold schemes, with a …

We propose a secure multiparty signing protocol for the BBS+ signature scheme; in other
words, an anonymous credential scheme with threshold issuance. We prove that due to the …