Welcome to the resource topic for 2016/370
Title:
Malleability of the blockchain’s entropy
Authors: Cecile Pierrot, Benjamin Wesolowski
Abstract:Trustworthy generation of public random numbers is necessary for the security of many cryptographic applications. It was suggested to use the inherent unpredictability of blockchains as a source of public randomness. Entropy from the Bitcoin blockchain in particular has been used in lotteries and has been suggested for a number of other applications ranging from smart contracts to election auditing. In this Arcticle, we analyse this idea and show how an adversary could manipulate these random numbers, even with limited computational power and financial budget.
ePrint: https://eprint.iacr.org/2016/370
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