Two-Round Stateless Deterministic Two-Party Schnorr Signatures From Pseudorandom Correlation Functions

ePrint Report: Two-Round Stateless Deterministic Two-Party Schnorr Signatures From Pseudorandom Correlation Functions

Yashvanth Kondi, Claudio Orlandi, Lawrence Roy

Schnorr signatures are a popular choice due to their simplicity, provable security, and linear structure that enables relatively easy threshold signing protocols. The deterministic variant of Schnorr (where the nonce is derived in a stateless manner using a PRF from the message and a long term secret) is widely used in practice since it mitigates the threats of a faulty or poor …

correlation eprint report functions message nonce party popular practice protocols provable security report secret security signatures signing stateless