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FairPoS: Input Fairness in Proof-of-Stake with Adaptive Security
Oct. 25, 2022, 9:48 p.m. |
IACR News www.iacr.org
ePrint Report: FairPoS: Input Fairness in Proof-of-Stake with Adaptive Security
James Hsin-yu Chiang, Bernardo David, Ittay Eyal, Tiantiang Gong
We present “FairPoS”, the first blockchain protocol that achieves input fairness with adaptive security. Here, we introduce a novel notion of “input fairness”: the adversary cannot learn the plain-text of any finalized client input before it is include in a block in the chain’s common-prefix. Should input fairness hold, input ordering attacks which depend on the knowledge of plain-text of client …
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