187 citations · 356 across the 35 of their papers we have counts for
5 papers · 1 filter
FMPC: Secure Multiparty Computation from Fourier Series and Parseval's Identity
Alberto Sonnino
FMPC is a novel multiparty computation protocol of arithmetic circuits based on secret-sharing, capable of computing multiplication of secrets with no online communication; it thus…
SybilQuorum: Open Distributed Ledgers Through Trust Networks
Alberto Sonnino, George Danezis
The Sybil attack plagues all peer-to-peer systems, and modern open distributed ledgers employ a number of tactics to prevent it from proof of work, or other resources such as space…
Proof-of-Prestige: A Useful Work Reward System for Unverifiable Tasks
Michał Król, Alberto Sonnino, Mustafa Al-Bassam +2
As cryptographic tokens and altcoins are increasingly being built to serve as utility tokens, the notion of useful work consensus protocols, as opposed to number-crunching PoW cons…
AStERISK: Auction-based Shared Economy ResolutIon System for blocKchain
Alberto Sonnino, Michał Król, Argyrios G. Tasiopoulos +1
Recent developments in blockchains and edge computing allows to deploy decentralized shared economy with utility tokens, where altcoins secure and reward useful work. However, the…
Replay Attacks and Defenses Against Cross-shard Consensus in Sharded Distributed Ledgers
Alberto Sonnino, Shehar Bano, Mustafa Al-Bassam +1
We present a family of replay attacks against sharded distributed ledgers, that target cross-shard consensus protocols, such as the recently proposed Chainspace and Omniledger. The…