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Proof of Work Without All the Work: Computationally Efficient Attack-Resistant Systems
[article]
2018
arXiv
pre-print
Proof-of-work (PoW) is an algorithmic tool used to secure networks by imposing a computational cost on participating devices. Unfortunately, traditional PoW schemes require that correct devices perform computational work perpetually, even when the system is not under attack. We address this issue by designing a general PoW protocol that ensures two properties. First, the network stays secure. In particular, the fraction of identities in the system that are controlled by an attacker is always
arXiv:1708.01285v3
fatcat:6etboypwqfcx3mk4mu7rmczroi