Alexander Koch

41 papers B 1C 2Misc 2Journal 25Unranked 10
YearRankTypeTitle / Venue / Authors
2026 J jnl
On Compressing Non-Additive Correlations.
IACR Cryptol. ePrint Arch.
Geoffroy Couteau, Alexander Koch, Nikolas Melissaris, Peter Scholl, Sacha Servan-Schreiber, Xiaxi Ye
2025 — conf
Pseudorandom Correlation Functions for Garbled Circuits.
TCC (2)
Geoffroy Couteau, Srinivas Devadas, Alexander Koch, Sacha Servan-Schreiber
2025 J jnl
Pseudorandom Correlation Functions for Garbled Circuits.
IACR Cryptol. ePrint Arch.
Geoffroy Couteau, Srinivas Devadas, Alexander Koch, Sacha Servan-Schreiber
2025 J jnl
The Quantum Decoherence Model: Everlasting Composable Secure Computation and More.
IACR Cryptol. ePrint Arch.
Nico Döttling, Alexander Koch, Sven Maier, Jeremias Mechler, Anne Müller, Jörn Müller-Quade, Marcel Tieplet
2024 J jnl
Efficient Card-Based ZKP for Single Loop Condition and Its Application to Moon-or-Sun.
New Gener. Comput.
Samuel D. Hand, Alexander Koch, Pascal Lafourcade, Daiki Miyahara, Léo Robert
2024 — conf
LaPSuS - A Lattice-Based Private Stream Aggregation Scheme Under Scrutiny.
SCN (2)
Johannes Ottenhues, Alexander Koch
2024 J jnl
LaPSuS - A Lattice-Based Private Stream Aggregation Scheme under Scrutiny.
IACR Cryptol. ePrint Arch.
Johannes Ottenhues, Alexander Koch
2024 — conf
QuietOT: Lightweight Oblivious Transfer with a Public-Key Setup.
ASIACRYPT (2)
Geoffroy Couteau, Lalita Devadas, Srinivas Devadas, Alexander Koch, Sacha Servan-Schreiber
2024 J jnl
QuietOT: Lightweight Oblivious Transfer with a Public-Key Setup.
IACR Cryptol. ePrint Arch.
Geoffroy Couteau, Lalita Devadas, Srinivas Devadas, Alexander Koch, Sacha Servan-Schreiber
2024 — conf
Two-Party Decision Tree Training from Updatable Order-Revealing Encryption.
ACNS (1)
Robin Berger, Felix Dörre, Alexander Koch
2024 J jnl
Two-Party Decision Tree Training from Updatable Order-Revealing Encryption.
IACR Cryptol. ePrint Arch.
Robin Berger, Felix Dörre, Alexander Koch
2023 Misc conf
Check Alternating Patterns: A Physical Zero-Knowledge Proof for Moon-or-Sun.
IWSEC
Samuel D. Hand, Alexander Koch, Pascal Lafourcade, Daiki Miyahara, Léo Robert
2023 J jnl
Check Alternating Patterns: A Physical Zero-Knowledge Proof for Moon-or-Sun.
IACR Cryptol. ePrint Arch.
Samuel D. Hand, Alexander Koch, Pascal Lafourcade, Daiki Miyahara, Léo Robert
2022 J jnl
Private Function Evaluation with Cards.
New Gener. Comput.
Alexander Koch, Stefan Walzer
2021 C conf
Black-Box Accumulation Based on Lattices.
IMACC
Sebastian H. Faller, Pascal Baumer, Michael Klooß, Alexander Koch, Astrid Ottenhues, Markus Raiber
2021 J jnl
Black-Box Accumulation Based on Lattices.
IACR Cryptol. ePrint Arch.
Sebastian H. Faller, Pascal Baumer, Michael Klooß, Alexander Koch, Astrid Ottenhues, Markus Raiber
2021 J jnl
Card-Based Cryptography Meets Formal Verification.
New Gener. Comput.
Alexander Koch, Michael Schrempp, Michael Kirsten
2021 — conf
ConTra Corona: Contact Tracing against the Coronavirus by Bridging the Centralized-Decentralized Divide for Stronger Privacy.
ASIACRYPT (2)
Wasilij Beskorovajnov, Felix Dörre, Gunnar Hartung, Alexander Koch, Jörn Müller-Quade, Thorsten Strufe
2021 J jnl
Fortified Multi-Party Computation: Taking Advantage of Simple Secure Hardware Modules.
Proc. Priv. Enhancing Technol.
Brandon Broadnax, Alexander Koch, Jeremias Mechler, Tobias Müller, Jörn Müller-Quade, Matthias Nagel
2021 Misc conf
Foundations for Actively Secure Card-Based Cryptography.
FUN
Alexander Koch, Stefan Walzer
2021 J jnl
Private Stream Aggregation with Labels in the Standard Model.
Proc. Priv. Enhancing Technol.
Johannes Ernst, Alexander Koch
2021 B conf
The Landscape of Security from Physical Assumptions
ITW
Alexander Koch
2020 J jnl
ConTra Corona: Contact Tracing against the Coronavirus by Bridging the Centralized - Decentralized Divide for Stronger Privacy.
IACR Cryptol. ePrint Arch.
Wasilij Beskorovajnov, Felix Dörre, Gunnar Hartung, Alexander Koch, Jörn Müller-Quade, Thorsten Strufe
2019 — conf
Card-Based Cryptography Meets Formal Verification.
ASIACRYPT (1)
Alexander Koch, Michael Schrempp, Michael Kirsten
2019 J jnl
Card-based Cryptography Meets Formal Verification.
IACR Cryptol. ePrint Arch.
Alexander Koch, Michael Schrempp, Michael Kirsten
2019 — —
Cryptographic Protocols from Physical Assumptions.
Alexander Koch
2019 — conf
Your Money or Your Life - Modeling and Analyzing the Security of Electronic Payment in the UC Framework.
Financial Cryptography
Dirk Achenbach, Roland Gröll, Timon Hackenjos, Alexander Koch, Bernhard Löwe, Jeremias Mechler, Jörn Müller-Quade, Jochen Rill
2019 J jnl
Your Money or Your Life - Modeling and Analyzing the Security of Electronic Payment in the UC Framework.
IACR Cryptol. ePrint Arch.
Dirk Achenbach, Roland Gröll, Timon Hackenjos, Alexander Koch, Bernhard Löwe, Jeremias Mechler, Jörn Müller-Quade, Jochen Rill
2018 J jnl
Fortified Universal Composability: Taking Advantage of Simple Secure Hardware Modules.
IACR Cryptol. ePrint Arch.
Brandon Broadnax, Alexander Koch, Jeremias Mechler, Tobias Müller, Jörn Müller-Quade, Matthias Nagel
2018 J jnl
Private Function Evaluation with Cards.
IACR Cryptol. ePrint Arch.
Alexander Koch, Stefan Walzer
2018 J jnl
The Landscape of Optimal Card-based Protocols.
IACR Cryptol. ePrint Arch.
Alexander Koch
2017 J jnl
Foundations for Actively Secure Card-based Cryptography.
IACR Cryptol. ePrint Arch.
Alexander Koch, Stefan Walzer
2017 C conf
Practical and Robust Secure Logging from Fault-Tolerant Sequential Aggregate Signatures.
ProvSec
Gunnar Hartung, Björn Kaidel, Alexander Koch, Jessica Koch, Dominik Hartmann
2017 J jnl
Practical and Robust Secure Logging from Fault-Tolerant Sequential Aggregate Signatures.
IACR Cryptol. ePrint Arch.
Gunnar Hartung, Björn Kaidel, Alexander Koch, Jessica Koch, Dominik Hartmann
2017 — conf
The Minimum Number of Cards in Practical Card-Based Protocols.
ASIACRYPT (3)
Julia Kastner, Alexander Koch, Stefan Walzer, Daiki Miyahara, Yu-ichi Hayashi, Takaaki Mizuki, Hideaki Sone
2017 J jnl
The Minimum Number of Cards in Practical Card-based Protocols.
IACR Cryptol. ePrint Arch.
Julia Kastner, Alexander Koch, Stefan Walzer, Daiki Miyahara, Yu-ichi Hayashi, Takaaki Mizuki, Hideaki Sone
2016 — conf
Fault-Tolerant Aggregate Signatures.
Public Key Cryptography (1)
Gunnar Hartung, Björn Kaidel, Alexander Koch, Jessica Koch, Andy Rupp
2016 J jnl
Fault-Tolerant Aggregate Signatures.
IACR Cryptol. ePrint Arch.
Gunnar Hartung, Björn Kaidel, Alexander Koch, Jessica Koch, Andy Rupp
2015 — conf
Card-Based Cryptographic Protocols Using a Minimal Number of Cards.
ASIACRYPT (1)
Alexander Koch, Stefan Walzer, Kevin Härtel
2015 J jnl
Card-based Cryptographic Protocols Using a Minimal Number of Cards.
IACR Cryptol. ePrint Arch.
Alexander Koch, Stefan Walzer, Kevin Härtel
2013 J jnl
Graphs with Plane Outside-Obstacle Representations.
CoRR
Alexander Koch, Marcus Krug, Ignaz Rutter