Ittay Eyal

Publications
Influence

Majority Is Not Enough: Bitcoin Mining Is Vulnerable

Ittay Eyal, Emin Gün Sirer
Computer Science
Financial Cryptography
1 November 2013

The Bitcoin cryptocurrency records its transactions in a public log called the blockchain. Expand

Bitcoin-NG: A Scalable Blockchain Protocol

Ittay Eyal, Adem Efe Gencer, Emin Gün Sirer, R. Renesse
Computer Science
NSDI
7 October 2015

We present Bitcoin-NG, a scalable blockchain protocol, based on the same trust model as Bitcoin. Expand

Majority is not enough

Ittay Eyal, Emin Gün Sirer
Computer Science
Commun. ACM
1 November 2013

We show that the Bitcoin mining protocol is not incentive-compatible. Expand

The Miner's Dilemma

Ittay Eyal
Computer Science
IEEE Symposium on Security and Privacy
25 November 2014

We define and analyze a game where pools use some of their participants to infiltrate other pools and perform such an attack. Expand

On Scaling Decentralized Blockchains - (A Position Paper)

Kyle Croman, C. Decker, +9 authors Roger Wattenhofer
Computer Science
Financial Cryptography Workshops
22 February 2016

We analyze how fundamental and circumstantial bottlenecks in Bitcoin limit the ability of its current peer-to-peer overlay network to support substantially higher throughputs and lower latencies. Expand

REM: Resource-Efficient Mining for Blockchains

F. Zhang, Ittay Eyal, Robert Escriva, A. Juels, R. Renesse
Computer Science
IACR Cryptol. ePrint Arch.
16 August 2017

Blockchains show promise as potential infrastructure for financial transaction systems. Expand

Decentralization in Bitcoin and Ethereum Networks

Adem Efe Gencer, S. Basu, Ittay Eyal, R. Renesse, Emin Gün Sirer
Computer Science
Financial Cryptography
11 January 2018

We present a measurement study on various decentralization metrics of two of the leading cryptocurrencies with the largest market capitalization and user base, Bitcoin and Ethereum. Expand

The Gap Game

Itay Tsabary, Ittay Eyal
Computer Science
SYSTOR
14 May 2018

We analyze the incentives and equilibrium of blockchain-based PoW systems, taking into account all elements of expenses and rewards. Expand

Blockchain Technology: Transforming Libertarian Cryptocurrency Dreams to Finance and Banking Realities

Ittay Eyal
Computer Science
Computer
22 September 2017

The financial technology (FinTech) sector sees high potential value in cryptocurrency blockchain protocols, or distributed-ledger technology (DLT). Expand

Robust data sharing with key-value stores

Cristina Basescu, C. Cachin, Ittay Eyal, R. Haas, M. Vukolic
Computer Science
IEEE/IFIP International Conference on Dependable…
6 June 2011

We present an efficient wait-free algorithm that emulates multi-reader multi-writer storage from a set of potentially faulty KVS replicas in an asynchronous environment. Expand

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