The Big Picture of Lattice Signature Thresholdization (Q12d)
Lattice-based schemes are emerging as leading candidates for post-quantum cryptography, while threshold cryptography is becoming essential for enhancing security in decentralized and distributed systems. This talk provides a comprehensive overview of constructing threshold lattice signatures, highlighting their cryptographic foundations, security guarantees, and challenges in designing efficient schemes. The discussion will include practical considerations such as parameter selection and performance optimization, alongside the “thresholdization” of known signature schemes. Insights into real-world applications and the complexities of coordinating secure multiparty operations will also be shared.