We present Moving Participants Turtle Consensus (MPTC), an asynchronous consensus protocol for crash and Byzantine-tolerant distributed systems. MPTC uses various moving target defense strategies to tolerate certain Denial-of-Service (DoS) attacks issued by an adversary capable of compromising a bounded portion of the system. MPTC supports on the fly reconfiguration of the consensus strategy as...

We derive equilibrium properties of participation in a large family of economic games that take place when players’ information is incomplete. The fact that participation is almost always costly introduces a crucial distinction between players and participants. The number of players is exogenous but the number, or distribution, of participants is part of equilibrium. We assume a quite general s...