email: iddobentov at cornell dot edu

By concealing identities, cryptocurrencies fuel cybercrime
The Cost of Decentralization in 0x and EtherDelta
Hierarchical deterministic wallets with deniable encryption
The effect of colored coins on bitcoin security

Publications

Tesseract: Real-Time Cryptocurrency Exchange using Trusted Hardware (preprint) (presentation)

Bitcoin Beacon (preprint)

Tortoise and Hares Consensus: the Meshcash Framework for Incentive-Compatible, Scalable Cryptocurrencies
with Pavel Hubáček, Tal Moran (talk), and Asaf Nadler

Obscuro: A Bitcoin Mixer using Trusted Execution Environments
with Muoi Tran, Loi Luu, Min Suk Kang, and Prateek Saxena

Sprites: Payment Channels that Go Faster than Lightning
with Ranjit Kumaresan, Patrick McCorry, and Andrew Miller

Improved concrete efficiency and security analysis of Reed-Solomon PCPPs
with Eli Ben-Sasson, Ariel Gabizon, and Michael Riabzev

Instantaneous Decentralized Poker
with Ranjit Kumaresan and Andrew Miller
Asiacrypt 2017

Zero-Collateral Lotteries in Bitcoin and Ethereum
with Andrew Miller
IEEE security&privacy on the blockchain workshop 2017

Decentralized Prediction Market without Arbiters
with Alex Mizrahi and Meni Rosenfeld
4th Bitcoin Workshop - Financial Cryptography 2017 (slides)

Computational integrity with a public random string from quasi-linear PCPs
with Eli Ben-Sasson et al.
Eurocrypt 2017

Amortizing Secure Computation with Penalties
with Ranjit Kumaresan
CCS 2016 (slides) (talk)

Cryptocurrencies without Proof of Work
with Ariel Gabizon and Alex Mizrahi
3rd Bitcoin Workshop - Financial Cryptography 2016 (slides)

On public key encryption from noisy codewords
with Eli Ben-Sasson, Ivan Damgard, Yuval Ishai, and Noga Ron-Zewi
PKC 2016

How to Use Bitcoin to Play Decentralized Poker
with Ranjit Kumaresan and Tal Moran
CCS 2015 (slides)

How to Use Bitcoin to Incentivize Correct Computations
with Ranjit Kumaresan
CCS 2014 (slides)

How to Use Bitcoin to Design Fair Protocols
with Ranjit Kumaresan
Crypto 2014

Proof of Activity: Extending Bitcoin's Proof of Work via Proof of Stake
with Charles Lee, Alex Mizrahi, and Meni Rosenfeld
W-PIN+NetEcon 2014 (slides) (talk)

Theses

PhD thesis: Bitcoin and Secure Computation with Money
Supervisor: Eli Ben-Sasson

MSc thesis: On Exact Learning from Random Walk
Supervisor: Nader Bshouty
Algorithmic Learning Theory -- ALT 2006 (slides)

Misc

Note on fair coin toss via Bitcoin
with Adam Back

Deterministic wallets (short talk at a Bitcoin conference)

projects