Resource Burning for Blockchains, DDOS attacks, Spam and Peer-to-peer  Systems
Channel: Jared Saia
Date: 2020-07-02

How can we defend Blockchains and peer-to-peer systems, when no central authority provides admission control?  Resource-burning (proof-of-work, proof-of-state, CAPTCHAs) is one of the most used tools to defend such systems, but it is currently poorly understood mathematically.  In this talk, I survey recent research to better understanding resource burning, in order to reduce its cost, and thereby improve system security.

Keywords: Distributed algorithms, game theory, costly signaling, money burning, Sybil attack, blockchains, cryptocurrencies, peer-to-peer.