About
My name is Or Sattath (in Hebrew: אור סתת) and I’m an associate professor at the Ben-Gurion Computer Science Department.
Previously, I was a postdoc at UC Berkeley, the Hebrew University and MIT. I finished my PhD. under the supervision of Prof. Dorit Aharonov at the Hebrew University, and Prof. Julia Kempe at Tel-Aviv University.
Research Interests
Quantum cryptography, complexity and algorithms. Theory of computer science at large.
Are you interested in doing a MSc., PhD. or a post-doc in quantum cryptography? Send me an email. Full scholarships are available.
Publications/Preprints
- The power of a single Haar random state: constructing and separating quantum pseudorandomness (abs, pdf)
Boyang Chen, Andrea Coladangelo, Or Sattath. - 51% Attack via Difficulty Increase with a Small Quantum Miner (abs, pdf, YouTube)
Bolton Bailey, Or Sattath. - Signatures From Pseudorandom States via ⊥-PRFs (abs, pdf)
Mohammed Barhoush, Amit Behera, Lior Ozer, Louis Salvail, Or Sattath. - Pseudorandomness with Proof of Destruction and Applications (abs, pdf, YouTube, slides)
- Protecting Quantum Procrastinators with Signature Lifting: A Case Study in Cryptocurrencies (abs, pdf, slides)
Or Sattath, Shai Wyborski.
Contributed talk in the 2nd PQC Standardization & Migration Workshop. - Public-Key Encryption with Quantum Keys (abs, pdf)
Khashayar Barooti, Alex B. Grilo, Loïs Huguenin-Dumittan, Giulio Malavolta, Or Sattath, and Quoc-Huy Vu.
In the proceedings of - Uncloneable Cryptography (abs, pdf)
Or Sattath. In Communications of the ACM. - General Partially Fair Multi-Party Computation with VDFs (abs, pdf)
Bolton Bailey, Andrew Miller, Or Sattath. - Quantum Prudent Contracts with Applications to Bitcoin (abs, pdf, slides)
Or Sattath. - Uncloneable Decryptors from Quantum Copy-Protection (abs, pdf)
Or Sattath, Shai Wyborski. - Quantum Amnesia Leaves Cryptographic Mementos: A Note On Quantum Skepticism (abs, pdf)
Or Sattath, Uriel Shinar. - Revisiting the Properties of Money (abs, pdf, YouTube, slides)
Isaiah Hull, Or Sattath. In Journal of Economic Surveys. A short version appeared as a SUERF policy brief, and in the following webinar. - Noise-Tolerant Quantum Tokens for MAC (abs, pdf, YouTube, slides)
Amit Behera, Or Sattath, Uriel Shinar.
Contributed talk in TQC’22. - Almost Public Quantum Coins (abs, pdf, YouTube, slides)
Amit Behera and Or Sattath
Contributed talk in QIP’21. - A Quantum Money Solution to the Blockchain Scalability Problem (abs, pdf, YouTube, slides)
Andrea Coladangelo and Or Sattath.
Contributed talk in QCrypt’20. In Quantum journal. - Semi-Quantum Money (abs, pdf, slides)
Roy Radian and Or Sattath
In the Journal of Cryptology (free view-only version) and in the proceeding of AFT’19. - On Quantum Advantage in Information Theoretic Single-Server PIR (abs, pdf, YouTube)
Dorit Aharonov, Zvika Brakerski, Kai-Min Chung, Ayal Green, Ching-Yi Lai, and Or Sattath
In the proceedings of Eurocrypt’19. - On the insecurity of quantum Bitcoin mining (abs, pdf, YouTube, slides)
Or Sattath
In the International Journal of Information Security. Contributed talk in QCrypt’18. - Redesigning Bitcoin’s fee market (abs, pdf, YouTube, slides)
Ron Lavi, Or Sattath and Aviv Zohar
In ACM Transactions on Economics and Computation, the proceedings of WWW’19, and contributed talk in the Scaling Bitcoin workshop 2017. - Quantum coin hedging, and a counter measure (abs, pdf)
Maor Ganz, Or Sattath
In the proceedings of TQC’17. - On preparing ground states of gapped Hamiltonians: An efficient Quantum Lovász Local Lemma (abs, pdf, YouTube)
András Gilyén, Or Sattath
Contributed talk in QIP 2017. In the proceedings of FOCS 2017. - Quantum Tokens for Digital Signatures (abs, pdf, YouTube, slides, poster (best poster award, QIP’14))
Shalev Ben-David, Or Sattath
In Quantum journal. Contributed talk in QCrypt 2017. - When a local Hamiltonian must be frustration-free (abs, pdf, slides)
Or Sattath, Siddhardh C. Morampudi, Christopher R. Laumann, Roderich Moessner
In the PNAS. - Quantum Max-flow/Min-cut (abs, pdf)
Shawn X. Cui, Michael H. Freedman, Or Sattath, Richard Stong, Greg Minton
In the Journal of Mathematical Physics. - An adaptive attack on Wiesner’s quantum money
(abs, pdf, YouTube, Slides)
Aharon Brodutch, Daniel Nagaj , Or Sattath, Dominique Unruh
Contributed talk in QCrypt 2014. In Quantum Information and Computation. - An Almost Sudden Jump in Quantum Complexity (abs, pdf)
Or Sattath
In Quantum Information & Computation. - The complexity of the Separable Hamiltonian Problem (abs, pdf, YouTube, video, slides)
André Chailloux, Or Sattath
In CCC 2012.
Contributed talk in QIP 2011 - A Constructive Quantum Lovász Local Lemma for Commuting Projectors (abs, pdf)
Itai Arad, Or Sattath
In Quantum Information & Computation.
See also:
Three Proofs of a Constructive Commuting Quantum Lovasz Local Lemma (abs, pdf)
Toby Cubitt, Martin Schwarz, Frank Verstraete, Or Sattath and Itai Arad
Contributed talk in QIP 2011. - A Quantum Lovász Local Lemma (abs, pdf, ppt)
Andris Ambainis, Julia Kempe, Or Sattath
In the Journal of the ACM, Invited talk in QIP 2010, and contributed talk in STOC 2010. - On the power of a unique quantum witness(abs, pdf)
Rahul Jain, Iordanis Kerenidis, Greg Kuperberg, Miklos Santha, Or Sattath and Shengyu Zhang
In Innovations in Computer Science 2010, QIP 2010 and in the Theory of Computing. - The Pursuit For Uniqueness: Extending Valiant-Vazirani Theorem to the Probabilistic and Quantum Settings (abs,pdf)
Dorit Aharonov, Michael Ben-Or, Fernando G.S.L. Brandao, Or Sattath
In Quantum journal. - My master’s thesis, which is an extended version of the above paper.
Book
Quantum Technology for Economists
by Isaiah Hull , Or Sattath , Eleni Diamanti and Göran Wendin. Published by Springer, 2024.
A preliminary draft is available on the arXiv.
Service
QCryptoGraph — a dynamic graph that presents the relations between various quantum cryptographic primitives.
Program committees: QCrypt’23, QIP’21, QCrypt’20, The 1st Conference on Advances in Financial Technologies (AFT’19), QCrypt’18
Organized the tutorial “Quantum Computing Essentials for Financial Cryptographers” with Mark Zhandry, held in conjunction with Financial Cryptography (FC’22). Slides: Part 1, Part , Part 3, Part 4.
Co-organizer of The Mathematics of Quantum Computation workshop, IIAS, 2019.
Students
Current group members are:
- Shai Wyborski (Ph.D.)
- Amit Behera (MSc.)
- Roy Radian (MSc.)
Miscellaneous Recorded Talks
ZK-Podcast, basic introduction to quantum computing, quantum cryptography, and discussing quantum attacks and opportunities quantum cryptography opens for cryptocurrencies – Part I, Part II
Unclonable cryptography – a modern perspective on Wiesner’s work, Tel-Aviv University physics colloquium. Slides.
Quantum money and some of its extension, QICF’20. Slides.
Tutorial about quantum money, QCrypt’18. Slides.
The very basic of quantum computing: one and two qubits, The Mathematics of Quantum Computation. workshop, IIAS, 2019. Slides.
Bitcoin vs. quantum money, Israeli Bitcoin meetup, 2014. Slides.
Contact Information
email: “mylastname”@gmail.com.
Alon Building (bldg. #37), office 306.
Office number: (+972) 08-6428081, Fax number: (+972) 08-6428823
Snail mail Address:
Dr. Or Sattath
Department of Computer Science
Ben-Gurion University of the Negev
Beer-Sheva, Israel 84105
[…] paper, by Ron Lavi, Or Sattath, and Aviv Zohar gives some similar solutions(uses the Multi-Unit Second-Price model) but also […]
An Advanced Guide to CryptoEconomics – Onion Blog Team said this on February 12, 2019 at 6:32 pm
[…] morning, my friend and colleague Or Sattath brought me the terrible news that Stephen Wiesner has passed away in Israel. Decades ago, Wiesner […]
Shtetl-Optimized » Blog Archive » Stephen Wiesner (1942-2021) said this on August 13, 2021 at 10:54 pm