Vassilis Zikas

ORCID

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 88

Top Venues

IACR Cryptol. ePrint Arch.

CoRR

CCS

CRYPTO (2)

ETH Zurich (PHD)

Education History

ETH Zurich

PHD

Publications

Xiangyu Liu, Tzannetos Ioannis, Vassilis Zikas
Adaptor Signatures: New Security Definition and A Generic Construction for NP Relations. IACR Cryptol. ePrint Arch. 2024 (2024)
Jaspal Singh, Yu Wei, Vassilis Zikas
Information-theoretic Multi-server Private Information Retrieval with Client Preprocessing. IACR Cryptol. ePrint Arch. 2024 (2024)
Konstantinos Brazitikos, Vassilis Zikas
General Adversary Structures in Byzantine Agreement and Multi-Party Computation with Active and Omission Corruption. IACR Cryptol. ePrint Arch. 2024 (2024)
Christian Badertscher, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
Bitcoin as a Transaction Ledger: A Composable Treatment. J. Cryptol. 37 (2) (2024)
Timothé Albouy, Davide Frey, Ran Gelles, Carmit Hazay, Michel Raynal, Elad Michael Schiller, François Taïani, Vassilis Zikas
Towards Optimal Communication Byzantine Reliable Broadcast under a Message Adversary. CoRR (2023)
Yun Lu, Malik Magdon-Ismail, Yu Wei, Vassilis Zikas
Privacy-Utility Tradeoff of OLS with Random Projections. CoRR (2023)
Ran Cohen, Pouyan Forghani, Juan A. Garay, Rutvik Patel, Vassilis Zikas
Concurrent Asynchronous Byzantine Agreement in Expected-Constant Rounds, Revisited. IACR Cryptol. ePrint Arch. 2023 (2023)
Wonseok Choi, Xiangyu Liu, Vassilis Zikas
Blockchain Governance via Sharp Anonymous Multisignatures. IACR Cryptol. ePrint Arch. 2023 (2023)
Ran Cohen, Juan A. Garay, Vassilis Zikas
Completeness Theorems for Adaptively Secure Broadcast. CRYPTO (1) (2023)
John Andrews, Michele Ciampi, Vassilis Zikas
Etherless Ethereum tokens: Simulating native tokens in Ethereum. J. Comput. Syst. Sci. 135 (2023)
Benjamin Levy, Ben Sherman, Muhammad Ishaq, Lindsey Kennard, Ana L. Milanova, Vassilis Zikas
Compilation and Backend-Independent Vectorization for Multi-Party Computation. IACR Cryptol. ePrint Arch. 2023 (2023)
Benjamin Levy, Muhammad Ishaq, Benjamin Sherman, Lindsey Kennard, Ana L. Milanova, Vassilis Zikas
COMBINE: COMpilation and Backend-INdependent vEctorization for Multi-Party Computation. CCS (2023)
Ran Cohen, Pouyan Forghani, Juan A. Garay, Rutvik Patel, Vassilis Zikas
Concurrent Asynchronous Byzantine Agreement in Expected-Constant Rounds, Revisited. TCC (4) (2023)
Ran Cohen, Pouyan Forghani, Juan A. Garay, Rutvik Patel, Vassilis Zikas
Concurrent Asynchronous Byzantine Agreement in Expected-Constant Rounds, Revisited. CoRR (2023)
Wonseok Choi, Minki Hhan, Yu Wei, Vassilis Zikas
Fine-Tuning Ideal Worlds for the Xor of Two Permutation Outputs. IACR Cryptol. ePrint Arch. 2023 (2023)
John Andrews, Michele Ciampi, Vassilis Zikas
Etherless Ethereum Tokens: Simulating Native Tokens in Ethereum. CSCML (2022)
Yun Lu, Yu Wei, Malik Magdon-Ismail, Vassilis Zikas
Eureka: A General Framework for Black-box Differential Privacy Estimators. IACR Cryptol. ePrint Arch. 2022 (2022)
Michele Ciampi, Muhammad Ishaq, Malik Magdon-Ismail, Rafail Ostrovsky, Vassilis Zikas
FairMM: A Fast and Frontrunning-Resistant Crypto Market-Maker. CSCML (2022)
Michele Ciampi, Rafail Ostrovsky, Hendrik Waldner, Vassilis Zikas
Round-Optimal and Communication-Efficient Multiparty Computation. EUROCRYPT (1) (2022)
Nishanth Chandran, Pouyan Forghani, Juan A. Garay, Rafail Ostrovsky, Rutvik Patel, Vassilis Zikas
Universally Composable Almost-Everywhere Secure Computation. ITC (2022)
Michele Ciampi, Yun Lu, Vassilis Zikas
Collusion-Preserving Computation without a Mediator. CSF (2022)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Round-Preserving Parallel Composition of Probabilistic-Termination Cryptographic Protocols. J. Cryptol. 34 (2) (2021)
Nishanth Chandran, Pouyan Forghani, Juan A. Garay, Rafail Ostrovsky, Rutvik Patel, Vassilis Zikas
Universally Composable Almost-Everywhere Secure Computation. IACR Cryptol. ePrint Arch. 2021 (2021)
Ran Cohen, Juan A. Garay, Vassilis Zikas
Adaptively Secure Broadcast in Resource-Restricted Cryptography. IACR Cryptol. ePrint Arch. 2021 (2021)
Ao Liu, Yun Lu, Lirong Xia, Vassilis Zikas
How Private Are Commonly-Used Voting Rules? IACR Cryptol. ePrint Arch. 2021 (2021)
Christian Badertscher, Yun Lu, Vassilis Zikas
A Rational Protocol Treatment of 51% Attacks. CRYPTO (3) (2021)
John Andrews, Michele Ciampi, Vassilis Zikas
Etherless Ethereum Tokens: Simulating Native Tokens in Ethereum. IACR Cryptol. ePrint Arch. 2021 (2021)
Christian Badertscher, Julia Hesse, Vassilis Zikas
On the (Ir)Replaceability of Global Setups, or How (Not) to Use a Global Ledger. TCC (2) (2021)
Christian Badertscher, Peter Gazi, Aggelos Kiayias, Alexander Russell, Vassilis Zikas
Dynamic Ad Hoc Clock Synchronization. EUROCRYPT (3) (2021)
Christian Badertscher, Yun Lu, Vassilis Zikas
A Rational Protocol Treatment of 51% Attacks. IACR Cryptol. ePrint Arch. 2021 (2021)
Michele Ciampi, Muhammad Ishaq, Malik Magdon-Ismail, Rafail Ostrovsky, Vassilis Zikas
FairMM: A Fast and Frontrunning-Resistant Crypto Market-Maker. IACR Cryptol. ePrint Arch. 2021 (2021)
Michele Ciampi, Yun Lu, Vassilis Zikas
Collusion-Preserving Computation without a Mediator. IACR Cryptol. ePrint Arch. 2020 (2020)
Christian Badertscher, Ran Canetti, Julia Hesse, Björn Tackmann, Vassilis Zikas
Universal Composition with Global Subroutines: Capturing Global Setup within plain UC. IACR Cryptol. ePrint Arch. 2020 (2020)
Juan A. Garay, Aggelos Kiayias, Rafail M. Ostrovsky, Giorgos Panagiotakos, Vassilis Zikas
Resource-Restricted Cryptography: Revisiting MPC Bounds in the Proof-of-Work Era. EUROCRYPT (2) (2020)
Michele Ciampi, Rafail Ostrovsky, Hendrik Waldner, Vassilis Zikas
Round-Optimal and Communication-Efficient Multiparty Computation. IACR Cryptol. ePrint Arch. 2020 (2020)
Ran Cohen, Juan A. Garay, Vassilis Zikas
Broadcast-Optimal Two-Round MPC. EUROCRYPT (2) (2020)
Christian Badertscher, Peter Gazi, Aggelos Kiayias, Alexander Russell, Vassilis Zikas
Consensus Redux: Distributed Ledgers in the Face of Adversarial Supremacy. IACR Cryptol. ePrint Arch. 2020 (2020)
Ao Liu, Yun Lu, Lirong Xia, Vassilis Zikas
How Private Are Commonly-Used Voting Rules? UAI (2020)
Christian Badertscher, Ran Canetti, Julia Hesse, Björn Tackmann, Vassilis Zikas
Universal Composition with Global Subroutines: Capturing Global Setup Within Plain UC. TCC (3) (2020)
Christian Badertscher, Julia Hesse, Vassilis Zikas
On the (Ir)Replaceability of Global Setups, or How (Not) to Use a Global Ledger. IACR Cryptol. ePrint Arch. 2020 (2020)
Aydin Abadi, Michele Ciampi, Aggelos Kiayias, Vassilis Zikas
Timed Signatures and Zero-Knowledge Proofs - Timestamping in the Blockchain Era -. ACNS (1) (2020)
Leonard Kleinrock, Rafail Ostrovsky, Vassilis Zikas
A PoR/PoS-Hybrid Blockchain: Proof of Reputation with Nakamoto Fallback. IACR Cryptol. ePrint Arch. 2020 (2020)
Leonard Kleinrock, Rafail Ostrovsky, Vassilis Zikas
Proof-of-Reputation Blockchain with Nakamoto Fallback. INDOCRYPT (2020)
Christian Badertscher, Peter Gazi, Aggelos Kiayias, Alexander Russell, Vassilis Zikas
Ouroboros Chronos: Permissionless Clock Synchronization via Proof-of-Stake. IACR Cryptol. ePrint Arch. 2019 (2019)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Probabilistic Termination and Composability of Cryptographic Protocols. J. Cryptol. 32 (3) (2019)
Thomas Kerber, Aggelos Kiayias, Markulf Kohlweiss, Vassilis Zikas
Ouroboros Crypsinous: Privacy-Preserving Proof-of-Stake. IEEE Symposium on Security and Privacy (2019)
Maksim Tsikhanovich, Malik Magdon-Ismail, Muhammad Ishaq, Vassilis Zikas
PD-ML-Lite: Private Distributed Machine Learning from Lightweight Cryptography. ISC (2019)
Muhammad Ishaq, Ana L. Milanova, Vassilis Zikas
Efficient MPC via Program Analysis: A Framework for Efficient Optimal Mixing. CCS (2019)
Ran Cohen, Juan A. Garay, Vassilis Zikas
Broadcast-Optimal Two-Round MPC. IACR Cryptol. ePrint Arch. 2019 (2019)
Muhammad Ishaq, Ana L. Milanova, Vassilis Zikas
Efficient MPC via Program Analysis: A Framework for Efficient Optimal Mixing. IACR Cryptol. ePrint Arch. 2019 (2019)
Aydin Abadi, Michele Ciampi, Aggelos Kiayias, Vassilis Zikas
Timed Signatures and Zero-Knowledge Proofs -Timestamping in the Blockchain Era-. IACR Cryptol. ePrint Arch. 2019 (2019)
Juan A. Garay, Aggelos Kiayias, Rafail Ostrovsky, Giorgos Panagiotakos, Vassilis Zikas
Resource-Restricted Cryptography: Honest-Majority MPC from a CRS (and No Broadcast). IACR Cryptol. ePrint Arch. 2019 (2019)
Maksim Tsikhanovich, Malik Magdon-Ismail, Muhammad Ishaq, Vassilis Zikas
PD-ML-Lite: Private Distributed Machine Learning from Lighweight Cryptography. CoRR (2019)
Kai-Min Chung, Marios Georgiou, Ching-Yi Lai, Vassilis Zikas
Cryptography with Disposable Backdoors. Cryptogr. 3 (3) (2019)
Christian Badertscher, Peter Gazi, Aggelos Kiayias, Alexander Russell, Vassilis Zikas
Ouroboros Genesis: Composable Proof-of-Stake Blockchains with Dynamic Availability. IACR Cryptol. ePrint Arch. 2018 (2018)
Christian Badertscher, Juan A. Garay, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
But Why Does It Work? A Rational Protocol Design Treatment of Bitcoin. EUROCRYPT (2) (2018)
Christian Badertscher, Juan A. Garay, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
But Why does it Work? A Rational Protocol Design Treatment of Bitcoin. IACR Cryptol. ePrint Arch. 2018 (2018)
Yun Lu, Konstantinos Mitropoulos, Rafail Ostrovsky, Avraham Weinstock, Vassilis Zikas
Cryptographically Secure Detection of Injection Attacks. CCS (2018)
Kai-Min Chung, Marios Georgiou, Ching-Yi Lai, Vassilis Zikas
Cryptography with Dispensable Backdoors. IACR Cryptol. ePrint Arch. 2018 (2018)
Thomas Kerber, Markulf Kohlweiss, Aggelos Kiayias, Vassilis Zikas
Ouroboros Crypsinous: Privacy-Preserving Proof-of-Stake. IACR Cryptol. ePrint Arch. 2018 (2018)
Ao Liu, Yun Lu, Lirong Xia, Vassilis Zikas
How Private Is Your Voting? A Framework for Comparing the Privacy of Voting Mechanisms. CoRR (2018)
Christian Badertscher, Peter Gazi, Aggelos Kiayias, Alexander Russell, Vassilis Zikas
Ouroboros Genesis: Composable Proof-of-Stake Blockchains with Dynamic Availability. CCS (2018)
Ran Gelles, Anat Paskin-Cherniavsky, Vassilis Zikas
Secure Two-Party Computation over Unreliable Channels. SCN (2018)
Ran Gelles, Anat Paskin-Cherniavsky, Vassilis Zikas
Secure Two-Party Computation over Unreliable Channels. IACR Cryptol. ePrint Arch. 2018 (2018)
Juan A. Garay, Yuval Ishai, Rafail Ostrovsky, Vassilis Zikas
The Price of Low Communication in Secure Multi-party Computation. CRYPTO (1) (2017)
Juan A. Garay, Yuval Ishai, Rafail Ostrovsky, Vassilis Zikas
The Price of Low Communication in Secure Multi-Party Computation. IACR Cryptol. ePrint Arch. 2017 (2017)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Round-Preserving Parallel Composition of Probabilistic-Termination Cryptographic Protocols. ICALP (2017)
Christian Badertscher, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
Bitcoin as a Transaction Ledger: A Composable Treatment. IACR Cryptol. ePrint Arch. 2017 (2017)
Christian Badertscher, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
Bitcoin as a Transaction Ledger: A Composable Treatment. CRYPTO (1) (2017)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Round-Preserving Parallel Composition of Probabilistic-Termination Cryptographic Protocols. IACR Cryptol. ePrint Arch. 2017 (2017)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Probabilistic Termination and Composability of Cryptographic Protocols. IACR Cryptol. ePrint Arch. 2016 (2016)
Sandro Coretti, Juan A. Garay, Martin Hirt, Vassilis Zikas
Constant-Round Asynchronous Multi-Party Computation. IACR Cryptol. ePrint Arch. 2016 (2016)
Martin Hirt, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
Network-Hiding Communication and Applications to Multi-Party Protocols. IACR Cryptol. ePrint Arch. 2016 (2016)
Ran Cohen, Sandro Coretti, Juan A. Garay, Vassilis Zikas
Probabilistic Termination and Composability of Cryptographic Protocols. CRYPTO (3) (2016)
Richard J. Lipton, Rafail Ostrovsky, Vassilis Zikas
Provably Secure Virus Detection: Using The Observer Effect Against Malware. ICALP (2016)
Martin Hirt, Ueli Maurer, Daniel Tschudi, Vassilis Zikas
Network-Hiding Communication and Applications to Multi-party Protocols. CRYPTO (2) (2016)
Sandro Coretti, Juan A. Garay, Martin Hirt, Vassilis Zikas
Constant-Round Asynchronous Multi-Party Computation Based on One-Way Functions. ASIACRYPT (2) (2016)
Aggelos Kiayias, Hong-Sheng Zhou, Vassilis Zikas
Fair and Robust Multi-party Computation Using a Global Transaction Ledger. EUROCRYPT (2) (2016)
Juan A. Garay, Jonathan Katz, Björn Tackmann, Vassilis Zikas
How Fair is Your Protocol?: A Utility-based Approach to Protocol Optimality. PODC (2015)
Serge Fehr, Jonathan Katz, Fang Song, Hong-Sheng Zhou, Vassilis Zikas
Feasibility and Completeness of Cryptographic Tasks in the Quantum World. IACR Cryptol. ePrint Arch. 2015 (2015)
Juan A. Garay, Björn Tackmann, Vassilis Zikas
Fair Distributed Computation of Reactive Functions. IACR Cryptol. ePrint Arch. 2015 (2015)
Aggelos Kiayias, Hong-Sheng Zhou, Vassilis Zikas
Fair and Robust Multi-Party Computation using a Global Transaction Ledger. IACR Cryptol. ePrint Arch. 2015 (2015)
Joël Alwen, Rafail Ostrovsky, Hong-Sheng Zhou, Vassilis Zikas
Incoercible Multi-party Computation and Universally Composable Receipt-Free Voting. CRYPTO (2) (2015)
Juan A. Garay, Jonathan Katz, Björn Tackmann, Vassilis Zikas
How Fair is Your Protocol? A Utility-based Approach to Protocol Optimality. IACR Cryptol. ePrint Arch. 2015 (2015)
Nishanth Chandran, Wutichai Chongchitmate, Juan A. Garay, Shafi Goldwasser, Rafail Ostrovsky, Vassilis Zikas
The Hidden Graph Model: Communication Locality and Optimal Resiliency with Adaptive Faults. ITCS (2015)
Yuval Ishai, Rafail Ostrovsky, Vassilis Zikas
Secure Multi-Party Computation with Identifiable Abort. IACR Cryptol. ePrint Arch. 2015 (2015)
Richard J. Lipton, Rafail Ostrovsky, Vassilis Zikas
Provable Virus Detection: Using the Uncertainty Principle to Protect Against Malware. IACR Cryptol. ePrint Arch. 2015 (2015)
Juan A. Garay, Björn Tackmann, Vassilis Zikas
Fair Distributed Computation of Reactive Functions. DISC (2015)
Yuval Ishai, Rafail Ostrovsky, Vassilis Zikas
Secure Multi-Party Computation with Identifiable Abort. CRYPTO (2) (2014)
Seung Geol Choi, Jonathan Katz, Alex J. Malozemoff, Vassilis Zikas
Efficient Three-Party Computation from Cut-and-Choose. IACR Cryptol. ePrint Arch. 2014 (2014)
Nishanth Chandran, Wutichai Chongchitmate, Juan A. Garay, Shafi Goldwasser, Rafail Ostrovsky, Vassilis Zikas
Optimally Resilient and Adaptively Secure Multi-Party Computation with Low Communication Locality. IACR Cryptol. ePrint Arch. 2014 (2014)
Jonathan Katz, Aggelos Kiayias, Hong-Sheng Zhou, Vassilis Zikas
Distributing the setup in universally composable multi-party computation. PODC (2014)
Seung Geol Choi, Jonathan Katz, Alex J. Malozemoff, Vassilis Zikas
Efficient Three-Party Computation from Cut-and-Choose. CRYPTO (2) (2014)
Jonathan Katz, Ueli Maurer, Björn Tackmann, Vassilis Zikas
Universally Composable Synchronous Computation. TCC (2013)
Juan A. Garay, Jonathan Katz, Ueli Maurer, Björn Tackmann, Vassilis Zikas
Rational Protocol Design: Cryptography Against Incentive-driven Adversaries. IACR Cryptol. ePrint Arch. 2013 (2013)
Serge Fehr, Jonathan Katz, Fang Song, Hong-Sheng Zhou, Vassilis Zikas
Feasibility and Completeness of Cryptographic Tasks in the Quantum World. TCC (2013)
Juan A. Garay, Jonathan Katz, Ueli Maurer, Björn Tackmann, Vassilis Zikas
Rational Protocol Design: Cryptography against Incentive-Driven Adversaries. FOCS (2013)
Joël Alwen, Jonathan Katz, Ueli Maurer, Vassilis Zikas
Collusion-Preserving Computation. CRYPTO (2012)
Adam Groce, Jonathan Katz, Aishwarya Thiruvengadam, Vassilis Zikas
Byzantine Agreement with a Rational Adversary. ICALP (2) (2012)
Martin Hirt, Vassilis Zikas
Player-Centric Byzantine Agreement. ICALP (1) (2011)

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Publication Activity (10 Years)

Top Topics

Top Venues

Vassilis Zikas