Christian Schaffner

95 papers A* 7A 3B 3C 1Journal 65Unranked 16
YearRankTypeTitle / Venue / Authors
2026 J jnl
Integrity from Algebraic Manipulation Detection in Trusted-Repeater QKD Networks.
CoRR
Ailsa Robertson, Christian Schaffner, Sebastian R. Verschoor
2026 J jnl
Integrity from Algebraic Manipulation Detection in Trusted-Repeater QKD Networks.
IACR Cryptol. ePrint Arch.
Ailsa Robertson, Christian Schaffner, Sebastian R. Verschoor
2025 J jnl
Irrelevant carrots and non-existent sticks: trust, governance, and security in the transition to quantum-safe systems.
CoRR
Ailsa Robertson, Siân Brooke, Sebastian De Haro, Christian Schaffner
2025 J jnl
Parallel repetition of local simultaneous state discrimination.
Quantum
Llorenç Escolà-Farràs, Jaròn Has, Maris Ozols, Christian Schaffner, Mehrdad Tahmasbi
2025 J jnl
QKD Oracles for Authenticated Key Exchange.
CoRR
Kathrin Hövelmanns, Daan Planken, Christian Schaffner, Sebastian R. Verschoor
2025 J jnl
QKD Oracles for Authenticated Key Exchange.
IACR Cryptol. ePrint Arch.
Kathrin Hövelmanns, Daan Planken, Christian Schaffner, Sebastian R. Verschoor
2022 — conf
Efficient NIZKs and Signatures from Commit-and-Open Protocols in the QROM.
CRYPTO (2)
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2022 J jnl
Efficient NIZKs and Signatures from Commit-and-Open Protocols in the QROM.
CoRR
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2022 J jnl
Efficient NIZKs and Signatures from Commit-and-Open Protocols in the QROM.
IACR Cryptol. ePrint Arch.
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2022 — conf
Online-Extractability in the Quantum Random-Oracle Model.
EUROCRYPT (3)
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2022 — conf
Optimal Design of Time-of-Use Tariffs using Bilevel Optimization.
ISGT-Europe
Ashwin Venkatraman, Gabriela Hug, Christian Schaffner, Marina González Vayá
2021 J jnl
A Guide for New Program Committee Members at Theoretical Computer Science Conferences.
CoRR
Yfke Dulek, Stacey Jeffery, Christian Majenz, Christian Schaffner, Florian Speelman, Ronald de Wolf
2021 — conf
Impossibility of Quantum Virtual Black-Box Obfuscation of Classical Circuits.
CRYPTO (1)
Gorjan Alagic, Zvika Brakerski, Yfke Dulek, Christian Schaffner
2021 J jnl
Limitations on Uncloneable Encryption and Simultaneous One-Way-to-Hiding.
CoRR
Christian Majenz, Christian Schaffner, Mehrdad Tahmasbi
2021 J jnl
Limitations on Uncloneable Encryption and Simultaneous One-Way-to-Hiding.
IACR Cryptol. ePrint Arch.
Christian Majenz, Christian Schaffner, Mehrdad Tahmasbi
2021 J jnl
Online-Extractability in the Quantum Random-Oracle Model.
CoRR
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2021 J jnl
Online-Extractability in the Quantum Random-Oracle Model.
IACR Cryptol. ePrint Arch.
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2020 J jnl
Impossibility of Quantum Virtual Black-Box Obfuscation of Classical Circuits.
CoRR
Gorjan Alagic, Zvika Brakerski, Yfke Dulek, Christian Schaffner
2020 — conf
Non-interactive Cryptographic Timestamping Based on Verifiable Delay Functions.
Financial Cryptography
Esteban Landerreche, Marc Stevens, Christian Schaffner
2020 — conf
Secure Multi-party Quantum Computation with a Dishonest Majority.
EUROCRYPT (3)
Yfke Dulek, Alex B. Grilo, Stacey Jeffery, Christian Majenz, Christian Schaffner
2019 J jnl
Non-interactive Cryptographic Timestamping based on Verifiable Delay Functions.
IACR Cryptol. ePrint Arch.
Esteban Landerreche, Marc Stevens, Christian Schaffner
2019 J jnl
Non-malleability for quantum public-key encryption.
CoRR
Christian Majenz, Christian Schaffner, Jeroen van Wier
2019 J jnl
Non-malleability for quantum public-key encryption.
IACR Cryptol. ePrint Arch.
Christian Majenz, Christian Schaffner, Jeroen van Wier
2019 — conf
Quantum Indistinguishability of Random Sponges.
CRYPTO (2)
Jan Czajkowski, Andreas Hülsing, Christian Schaffner
2019 J jnl
Quantum Indistinguishability of Random Sponges.
IACR Cryptol. ePrint Arch.
Jan Czajkowski, Andreas Hülsing, Christian Schaffner
2019 J jnl
Quantum Lazy Sampling and Game-Playing Proofs for Quantum Indifferentiability.
CoRR
Jan Czajkowski, Christian Majenz, Christian Schaffner, Sebastian Zur
2019 J jnl
Quantum Lazy Sampling and Game-Playing Proofs for Quantum Indifferentiability.
IACR Cryptol. ePrint Arch.
Jan Czajkowski, Christian Majenz, Christian Schaffner, Sebastian Zur
2019 J jnl
Secure Multi-party Quantum Computation with a Dishonest Majority.
CoRR
Yfke Dulek, Alex B. Grilo, Stacey Jeffery, Christian Majenz, Christian Schaffner
2019 J jnl
Secure Multi-party Quantum Computation with a Dishonest Majority.
IACR Cryptol. ePrint Arch.
Yfke Dulek, Alex B. Grilo, Stacey Jeffery, Christian Majenz, Christian Schaffner
2019 — conf
Security of the Fiat-Shamir Transformation in the Quantum Random-Oracle Model.
CRYPTO (2)
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2019 J jnl
Security of the Fiat-Shamir Transformation in the Quantum Random-Oracle Model.
CoRR
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2019 J jnl
Security of the Fiat-Shamir Transformation in the Quantum Random-Oracle Model.
IACR Cryptol. ePrint Arch.
Jelle Don, Serge Fehr, Christian Majenz, Christian Schaffner
2018 — conf
A Concrete Treatment of Fiat-Shamir Signatures in the Quantum Random-Oracle Model.
EUROCRYPT (3)
Eike Kiltz, Vadim Lyubashevsky, Christian Schaffner
2018 C conf
Post-quantum Security of the Sponge Construction.
PQCrypto
Jan Czajkowski, Leon Groot Bruinderink, Andreas Hülsing, Christian Schaffner, Dominique Unruh
2018 J jnl
Quantum Homomorphic Encryption for Polynomial-Size Circuits.
Theory Comput.
Yfke Dulek, Christian Schaffner, Florian Speelman
2017 J jnl
A Concrete Treatment of Fiat-Shamir Signatures in the Quantum Random-Oracle Model.
IACR Cryptol. ePrint Arch.
Eike Kiltz, Vadim Lyubashevsky, Christian Schaffner
2017 J jnl
Post-quantum security of the sponge construction.
IACR Cryptol. ePrint Arch.
Jan Czajkowski, Leon Groot Bruinderink, Andreas Hülsing, Christian Schaffner, Dominique Unruh
2017 J jnl
Quantum Fully Homomorphic Encryption With Verification.
CoRR
Gorjan Alagic, Yfke Dulek, Christian Schaffner, Florian Speelman
2017 — conf
Quantum Fully Homomorphic Encryption with Verification.
ASIACRYPT (1)
Gorjan Alagic, Yfke Dulek, Christian Schaffner, Florian Speelman
2017 J jnl
Using Simon's algorithm to attack symmetric-key cryptographic primitives.
Quantum Inf. Comput.
Thomas Santoli, Christian Schaffner
2016 — conf
Computational Security of Quantum Encryption.
ICITS
Gorjan Alagic, Anne Broadbent, Bill Fefferman, Tommaso Gagliardoni, Christian Schaffner, Michael St. Jules
2016 J jnl
Computational Security of Quantum Encryption.
CoRR
Gorjan Alagic, Anne Broadbent, Bill Fefferman, Tommaso Gagliardoni, Christian Schaffner, Michael St. Jules
2016 J jnl
Computational Security of Quantum Encryption.
IACR Cryptol. ePrint Arch.
Gorjan Alagic, Anne Broadbent, Bill Fefferman, Tommaso Gagliardoni, Christian Schaffner, Michael St. Jules
2016 — conf
Quantum Homomorphic Encryption for Polynomial-Sized Circuits.
CRYPTO (3)
Yfke Dulek, Christian Schaffner, Florian Speelman
2016 J jnl
Quantum cryptography beyond quantum key distribution.
Des. Codes Cryptogr.
Anne Broadbent, Christian Schaffner
2016 J jnl
Quantum homomorphic encryption for polynomial-sized circuits.
CoRR
Yfke Dulek, Christian Schaffner, Florian Speelman
2016 J jnl
Quantum homomorphic encryption for polynomial-sized circuits.
IACR Cryptol. ePrint Arch.
Yfke Dulek, Christian Schaffner, Florian Speelman
2016 — conf
Semantic Security and Indistinguishability in the Quantum World.
CRYPTO (3)
Tommaso Gagliardoni, Andreas Hülsing, Christian Schaffner
2016 J jnl
Using Simon's Algorithm to Attack Symmetric-Key Cryptographic Primitives.
CoRR
Thomas Santoli, Christian Schaffner
2015 J jnl
Multiparty Zero-Error Classical Channel Coding With Entanglement.
IEEE Trans. Inf. Theory
Teresa Piovesan, Giannicola Scarpa, Christian Schaffner
2015 J jnl
Quantifying the Leakage of Quantum Protocols for Classical Two-Party Cryptography.
CoRR
Louis Salvail, Christian Schaffner, Miroslava Sotáková
2015 J jnl
Quantum Cryptography Beyond Quantum Key Distribution.
IACR Cryptol. ePrint Arch.
Anne Broadbent, Christian Schaffner
2015 J jnl
Semantic Security and Indistinguishability in the Quantum World.
CoRR
Tommaso Gagliardoni, Andreas Hülsing, Christian Schaffner
2015 J jnl
Semantic Security and Indistinguishability in the Quantum World.
IACR Cryptol. ePrint Arch.
Tommaso Gagliardoni, Andreas Hülsing, Christian Schaffner
2014 — conf
On the Parallel Repetition of Multi-Player Games: The No-Signaling Case.
TQC
Harry Buhrman, Serge Fehr, Christian Schaffner
2014 J jnl
Position-Based Quantum Cryptography: Impossibility and Constructions.
SIAM J. Comput.
Harry Buhrman, Nishanth Chandran, Serge Fehr, Ran Gelles, Vipul Goyal, Rafail Ostrovsky, Christian Schaffner
2014 J jnl
Secure identification and QKD in the bounded-quantum-storage model.
Theor. Comput. Sci.
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2013 A conf
The garden-hose model.
ITCS
Harry Buhrman, Serge Fehr, Christian Schaffner, Florian Speelman
2012 — conf
An All-But-One Entropic Uncertainty Relation, and Application to Password-Based Identification.
TQC
Niek J. Bouman, Serge Fehr, Carlos González-Guillén, Christian Schaffner
2012 J jnl
Complete Insecurity of Quantum Protocols for Classical Two-Party Computation
CoRR
Harry Buhrman, Matthias Christandl, Christian Schaffner
2011 J jnl
Leftover Hashing Against Quantum Side Information.
IEEE Trans. Inf. Theory
Marco Tomamichel, Christian Schaffner, Adam D. Smith, Renato Renner
2011 J jnl
Position-Based Quantum Cryptography.
ERCIM News
Harry Buhrman, Serge Fehr, Christian Schaffner
2011 A* conf
Position-Based Quantum Cryptography: Impossibility and Constructions.
CRYPTO
Harry Buhrman, Nishanth Chandran, Serge Fehr, Ran Gelles, Vipul Goyal, Rafail Ostrovsky, Christian Schaffner
2011 A conf
Random Oracles in a Quantum World.
ASIACRYPT
Dan Boneh, Özgür Dagdelen, Marc Fischlin, Anja Lehmann, Christian Schaffner, Mark Zhandry
2011 J jnl
Security and Composability of Randomness Expansion from Bell Inequalities
CoRR
Serge Fehr, Ran Gelles, Christian Schaffner
2011 J jnl
The Garden-Hose Game: A New Model of Computation, and Application to Position-Based Quantum Cryptography
CoRR
Harry Buhrman, Serge Fehr, Christian Schaffner, Florian Speelman
2010 B conf
Leftover Hashing against quantum side information.
ISIT
Marco Tomamichel, Renato Renner, Christian Schaffner, Adam D. Smith
2010 J jnl
Position-Based Quantum Cryptography: Impossibility and Constructions
CoRR
Harry Buhrman, Nishanth Chandran, Serge Fehr, Ran Gelles, Vipul Goyal, Rafail Ostrovsky, Christian Schaffner
2010 J jnl
Position-Based Quantum Cryptography: Impossibility and Constructions.
IACR Cryptol. ePrint Arch.
Harry Buhrman, Nishanth Chandran, Serge Fehr, Ran Gelles, Vipul Goyal, Rafail Ostrovsky, Christian Schaffner
2010 J jnl
Random Oracles in a Quantum World
CoRR
Özgür Dagdelen, Marc Fischlin, Anja Lehmann, Christian Schaffner
2010 J jnl
Random Oracles in a Quantum World.
IACR Cryptol. ePrint Arch.
Dan Boneh, Özgür Dagdelen, Marc Fischlin, Anja Lehmann, Christian Schaffner, Mark Zhandry
2009 B conf
Composing Quantum Protocols in a Classical Environment.
TCC
Serge Fehr, Christian Schaffner
2009 A* conf
Improving the Security of Quantum Protocols via Commit-and-Open.
CRYPTO
Ivan Damgård, Serge Fehr, Carolin Lunemann, Louis Salvail, Christian Schaffner
2009 A conf
On the Power of Two-Party Quantum Cryptography.
ASIACRYPT
Louis Salvail, Christian Schaffner, Miroslava Sotáková
2009 J jnl
Robust cryptography in the noisy-quantum-storage model.
Quantum Inf. Comput.
Christian Schaffner, Barbara M. Terhal, Stephanie Wehner
2009 J jnl
The operational meaning of min- and max-entropy.
IEEE Trans. Inf. Theory
Robert König, Renato Renner, Christian Schaffner
2008 J jnl
Cryptography in the Bounded-Quantum-Storage Model.
SIAM J. Comput.
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2008 B conf
Randomness Extraction Via
TCC
Serge Fehr, Christian Schaffner
2007 J jnl
A Tight High-Order Entropic Quantum Uncertainty Relation With Applications.
IACR Cryptol. ePrint Arch.
Ivan Damgård, Serge Fehr, Renato Renner, Louis Salvail, Christian Schaffner
2007 A* conf
A Tight High-Order Entropic Quantum Uncertainty Relation with Applications.
CRYPTO
Ivan Damgård, Serge Fehr, Renato Renner, Louis Salvail, Christian Schaffner
2007 J jnl
Cryptography from Noisy Photonic Storage
CoRR
Stephanie Wehner, Christian Schaffner, Barbara M. Terhal
2007 J jnl
Cryptography in the Bounded-Quantum-Storage Model
CoRR
Christian Schaffner
2007 J jnl
Randomness Extraction via Delta-Biased Masking in the Presence of a Quantum Attacker
CoRR
Serge Fehr, Christian Schaffner
2007 J jnl
Randomness Extraction via Delta-Biased Masking in the Presence of a Quantum Attacker.
IACR Cryptol. ePrint Arch.
Serge Fehr, Christian Schaffner
2007 A* conf
Secure Identification and QKD in the Bounded-Quantum-Storage Model.
CRYPTO
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2007 J jnl
Secure Identification and QKD in the Bounded-Quantum-Storage Model.
IACR Cryptol. ePrint Arch.
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2006 J jnl
A Tight High-Order Entropic Quantum Uncertainty Relation With Applications
CoRR
Ivan Damgård, Serge Fehr, Renato Renner, Louis Salvail, Christian Schaffner
2006 A* conf
Information-Theoretic Conditions for Two-Party Secure Function Evaluation.
EUROCRYPT
Claude Crépeau, George Savvides, Christian Schaffner, Jürg Wullschleger
2006 J jnl
Information-Theoretic Conditions for Two-Party Secure Function Evaluation.
IACR Cryptol. ePrint Arch.
Claude Crépeau, George Savvides, Christian Schaffner, Jürg Wullschleger
2006 A* conf
Oblivious Transfer and Linear Functions.
CRYPTO
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2005 J jnl
Cryptography In the Bounded Quantum-Storage Model
CoRR
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2005 A* conf
Cryptography In the Bounded Quantum-Storage Model.
FOCS
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2005 J jnl
Cryptography In the Bounded Quantum-Storage Model.
IACR Cryptol. ePrint Arch.
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2005 — conf
Cryptography in the bounded quantum-storage model.
ICITS
Ivan Bjerre Damgård, Serge Fehr, Louis Salvail, Christian Schaffner
2005 J jnl
Oblivious Transfer and Linear Functions.
IACR Cryptol. ePrint Arch.
Ivan Damgård, Serge Fehr, Louis Salvail, Christian Schaffner