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cs.CR2024
Statistical Confidence in Mining Power Estimates for PoW Blockchains
Mary Milad, Christina Ovezik, Dimitris Karakostas +1
The security of blockchain systems depends on the distribution of mining power across participants. If sufficient mining power is controlled by one entity, they can force their own…
cs.GT2024★ 1 cited
Blockchain Bribing Attacks and the Efficacy of Counterincentives
Dimitris Karakostas, Aggelos Kiayias, Thomas Zacharias
We analyze bribing attacks in Proof-of-Stake distributed ledgers from a game theoretic perspective. In bribing attacks, an adversary offers participants a reward in exchange for in…