2 papers
cs.GT2023
Breaking Blockchain Rationality with Out-of-Band Collusion
Haoqian Zhang, Mahsa Bastankhah, Louis-Henri Merino +2
Blockchain systems often rely on rationality assumptions for their security, expecting that nodes are motivated to maximize their profits. These systems thus design their protocols…
cs.CR2022
F3B: A Low-Overhead Blockchain Architecture with Per-Transaction Front-Running Protection
Haoqian Zhang, Louis-Henri Merino, Ziyan Qu +3
Front-running attacks, which benefit from advanced knowledge of pending transactions, have proliferated in the blockchain space since the emergence of decentralized finance. Front-…