email: iddobentov at cornell dot edu


StarkWare     Spacemesh (talk)     Virtue Poker


Bitcoin Beacon (preprint)

GoAT: File Geolocation via Anchor Timestamping
with Ari Juels, Mahimna Kelkar, and Deepak Maram

Flash Boys 2.0: Frontrunning, Transaction Reordering, and Consensus Instability in Decentralized Exchanges
with Lorenz Breidenbach, Philip Daian, Steven Goldfeder, Ari Juels, Tyler Kell, Yunqi Li, and Xueyuan Zhao

PISA: Arbitration Outsourcing for State Channels
with Surya Bakshi, Patrick McCorry, Sarah Meiklejohn, and Andrew Miller

Tesseract: Real-Time Cryptocurrency Exchange using Trusted Hardware  (slides)  (short presentation)  (talk)
with Lorenz Breidenbach, Philip Daian, Yan Ji, Ari Juels, Yunqi Li, Fan Zhang, and Xueyuan Zhao

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

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

Scalable, transparent, and post-quantum secure computational integrity
with Eli Ben-Sasson, Yinon Horesh, and Michael Riabzev
Crypto 2019

Sprites: Payment Channels that Go Faster than Lightning
with Ranjit Kumaresan, Patrick McCorry, and Andrew Miller
Financial Cryptography 2019

Obscuro: A Bitcoin Mixer using Trusted Execution Environments
with Min Suk Kang, Prateek Saxena, Muoi Tran, and Loi Luu
ACSAC 2018

Fast Reed-Solomon Interactive Oracle Proofs of Proximity
with Eli Ben-Sasson, Yinon Horesh, and Michael Riabzev
ICALP 2018

Paralysis Proofs: Safe Access-Structure Updates for Cryptocurrencies and More
with Philip Daian, Ari Juels, and Fan Zhang
5th Bitcoin Workshop - Financial Cryptography 2018

Instantaneous Decentralized Poker
with Ranjit Kumaresan and Andrew Miller
Asiacrypt 2017 (slides) (talk)

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)

Blogs, articles, Q&A

bitcointalk posts
ethresearch posts
The Next Web Q&A
Pisa: Arbitration Outsourcing for State Channels
Paralysis Proofs: How to Prevent Your Bitcoin From Vanishing
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

Program committees

CANS 2017, Latincrypt 2017, BlockSEA 2018, Financial Cryptography 2019, IEEE ICBC 2019, IEEE S&B 2019, Bitcoin Research Workshop {2016, 2017, 2018}


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)


Note on fair coin toss via Bitcoin
with Adam Back

Deterministic wallets (short talk at a Bitcoin conference)

PhD presentations