HARTS: High-Threshold, Adaptively Secure, and Robust Threshold Schnorr Signatures

ePrint Report: HARTS: High-Threshold, Adaptively Secure, and Robust Threshold Schnorr Signatures

Renas Bacho, Julian Loss, Gilad Stern, Benedikt Wagner

Threshold variants of the Schnorr signature scheme have recently been at the center of attention due to their applications to Bitcoin, Ethereum, and other cryptocurrencies. However, existing constructions for threshold Schnorr signatures among a set of $n$ parties with corruption threshold $t_c$ suffer from at least one of the following drawbacks: (i) security only against static (i.e., non-adaptive) adversaries, (ii) cubic …

applications attention bitcoin center cryptocurrencies eprint report ethereum high loss report signature signatures stern threshold wagner