Byzantine Fault-Tolerant Aggregate Signatures
Quentin Kniep, Roger P. Wattenhofer · 2024
Efficient (non-interactive) aggregate signature schemes in the post-quantum setting are still missing. We define the concept of Byzantine fault-tolerant aggregate signature schemes. This notion fills a middle-ground between interactive and non-interactive signature aggregation. Signers are required to interact but some may fail or misbehave at any point in the signing protocol.