Sebastian Ramacher

74 papers A* 2A 4B 8C 5Misc 1Journal 37Unranked 16
YearRankTypeTitle / Venue / Authors
2026 J jnl
Shorter, Tighter, FAESTer: Optimizations and Improved (QROM) Analysis for VOLE-in-the-Head Signatures.
IACR Cryptol. ePrint Arch.
Carsten Baum, Ward Beullens, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Christian Majenz, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl
2025 J jnl
Commitment Schemes from OWFs with Applications to Quantum Oblivious Transfer.
CoRR
Thomas Lorünser, Sebastian Ramacher, Federico Valbusa
2025 J jnl
Commitment Schemes from OWFs with Applications to Quantum Oblivious Transfer.
Entropy
Thomas Lorünser, Sebastian Ramacher, Federico Valbusa
2025 J jnl
Constant-Size Inner Product Arguments for Group-Scalar Relations, Dynamic Threshold VRFs, and More.
IACR Cryptol. ePrint Arch.
Omid Mir, Octavio Perez-Kempner, Sebastian Ramacher, Daniel Slamanig
2025 — conf
DISCRETION: First Field Demonstration of a Quantum Enabled SDN in the Context of a Military Exercise.
ICMCIS
Catarina Bastos, Francisco Pinto, Rodrigo Bacar, Gustavo Anjos, Margarida Almeida, Armando Nolasco Pinto, Ricardo Chaves, Tiago Dias, Joana Afonso, Rui Calé, Miguel Freitas, Luis Maia, Luis Magalhães, Alejandro Muñiz, Rafael Cantó, Juan Pedro Brito, Jesus Ballesta, Rubén B. Méndez, Stephan Laschet, Sebastian Ramacher, Paul James, Luca Torresetti, Pietro Piscione, Ahmed K. Abdulwahed, Pietro G. Giardina, Vicente Martín, Laura Ortíz, Antonio Pastor, Nelson J. Muga, Nuno A. Silva, Diego R. López, Margarida Vieira, Carmen Escribano, Luis Mengal
2025 — conf
Leap: A Fast, Lattice-Based OPRF with Application to Private Set Intersection.
EUROCRYPT (7)
Lena Heimberger, Daniel Kales, Riccardo Lolato, Omid Mir, Sebastian Ramacher, Christian Rechberger
2025 J jnl
Leap: A Fast, Lattice-based OPRF With Application to Private Set Intersection.
IACR Cryptol. ePrint Arch.
Lena Heimberger, Daniel Kales, Riccardo Lolato, Omid Mir, Sebastian Ramacher, Christian Rechberger
2025 J jnl
Quantum-Safe Hybrid Key Exchanges with KEM-Based Authentication.
IACR Cryptol. ePrint Arch.
Christopher Battarbee, Christoph Striecks, Ludovic Perret, Sebastian Ramacher, Kevin Verhaeghe
2025 C conf
Seamless Post-Quantum Transition: Agile and Efficient Encryption for Data-at-Rest.
SECRYPT
Federico Valbusa, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher
2025 J jnl
Seamless Post-Quantum Transition: Agile and Efficient Encryption for Data-at-Rest.
IACR Cryptol. ePrint Arch.
Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Federico Valbusa
2025 — conf
Shorter, Tighter, FAESTer: Optimizations and Improved (QROM) Analysis for VOLE-in-the-Head Signatures.
CRYPTO (6)
Carsten Baum, Ward Beullens, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Christian Majenz, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl
2024 J jnl
(Inner-Product) Functional Encryption with Updatable Ciphertexts.
J. Cryptol.
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
2024 J jnl
Attribute-Based Threshold Issuance Anonymous Counting Tokens and Its Application to Sybil-Resistant Self-Sovereign Identity.
IACR Cryptol. ePrint Arch.
Reyhaneh Rabaninejad, Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig, Antonis Michalas
2024 A conf
Circuit-Succinct Universally-Composable NIZKs with Updatable CRS.
CSF
Behzad Abdolmaleki, Noemi Glaeser, Sebastian Ramacher, Daniel Slamanig
2024 A conf
OPRFs from Isogenies: Designs and Analysis.
AsiaCCS
Lena Heimberger, Tobias Hennerbichler, Fredrik Meisingseth, Sebastian Ramacher, Christian Rechberger
2024 — conf
One Tree to Rule Them All: Optimizing GGM Trees and OWFs for Post-Quantum Signatures.
ASIACRYPT (1)
Carsten Baum, Ward Beullens, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl
2024 J jnl
One Tree to Rule Them All: Optimizing GGM Trees and OWFs for Post-Quantum Signatures.
IACR Cryptol. ePrint Arch.
Carsten Baum, Ward Beullens, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl
2024 J jnl
Quantum-Safe Hybrid Key Exchanges with KEM-Based Authentication.
CoRR
Christopher Battarbee, Christoph Striecks, Ludovic Perret, Sebastian Ramacher, Kevin Verhaeghe
2023 B conf
Key Management Systems for Large-Scale Quantum Key Distribution Networks.
ARES
Paul James, Stephan Laschet, Sebastian Ramacher, Luca Torresetti
2023 C conf
Muckle+: End-to-End Hybrid Authenticated Key Exchanges.
PQCrypto
Sonja Bruckner, Sebastian Ramacher, Christoph Striecks
2023 J jnl
Muckle+: End-to-End Hybrid Authenticated Key Exchanges.
IACR Cryptol. ePrint Arch.
Sonja Bruckner, Sebastian Ramacher, Christoph Striecks
2023 — conf
Optimizing 0-RTT Key Exchange with Full Forward Security.
CCSW@CCS
Christian Göth, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi, Alexander Zikulnig
2023 J jnl
Outsourced Computations Maintaining Confidentiality and Authenticity.
ERCIM News
Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Florian Wohner
2023 B conf
Quantum-resistant End-to-End Secure Messaging and Email Communication.
ARES
Christoph Döberl, Wolfgang Eibner, Simon Gärtner, Manuela Kos, Florian Kutschera, Sebastian Ramacher
2023 J jnl
Universally Composable NIZKs: Circuit-Succinct, Non-Malleable and CRS-Updatable.
IACR Cryptol. ePrint Arch.
Behzad Abdolmaleki, Noemi Glaeser, Sebastian Ramacher, Daniel Slamanig
2022 J jnl
(Inner-Product) Functional Encryption with Updatable Ciphertexts.
IACR Cryptol. ePrint Arch.
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
2022 B conf
Extending Expressive Access Policies with Privacy Features.
TrustCom
Stefan More, Sebastian Ramacher, Lukas Alber, Marco Herzl
2022 J jnl
Extending Expressive Access Policies with Privacy Features.
CoRR
Stefan More, Sebastian Ramacher, Lukas Alber, Marco Herzl
2022 J jnl
Issuer-Hiding Attribute-Based Credentials.
IACR Cryptol. ePrint Arch.
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
2022 — ch.
KRAKEN: A Secure, Trusted, Regulatory-Compliant, and Privacy-Preserving Data Sharing Platform.
Data Spaces
Silvia Gabrielli, Stephan Krenn, Donato Pellegrino, Juan Carlos Pérez Baún, Pilar Perez Berganza, Sebastian Ramacher, Wim Vandevelde
2022 — conf
KRAKEN: a privacy-preserving data market for authentic data.
DE@CoNEXT
Karl W. Koch, Stephan Krenn, Tilen Marc, Stefan More, Sebastian Ramacher
2022 J jnl
Privacy-Preserving Authenticated Key Exchange: Stronger Privacy and Generic Constructions.
IACR Cryptol. ePrint Arch.
Sebastian Ramacher, Daniel Slamanig, Andreas Weninger
2021 — conf
Fine-Grained Forward Secrecy: Allow-List/Deny-List Encryption and Applications.
Financial Cryptography (2)
David Derler, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2021 B conf
Issuer-Hiding Attribute-Based Credentials.
CANS
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
2021 J jnl
KRAKEN - Brokerage and Market Platform for Personal Data.
ERCIM News
Andreas Abraham, Juan Carlos Pérez Baún, Sebastian Ramacher
2021 B conf
Multi-party Revocation in Sovrin: Performance through Distributed Trust.
CT-RSA
Lukas Helminger, Daniel Kales, Sebastian Ramacher, Roman Walch
2021 — conf
Privacy-Preserving Authenticated Key Exchange: Stronger Privacy and Generic Constructions.
ESORICS (2)
Sebastian Ramacher, Daniel Slamanig, Andreas Weninger
2021 B conf
Privacy-Preserving eID Derivation to Self-Sovereign Identity Systems with Offline Revocation.
TrustCom
Andreas Abraham, Karl W. Koch, Stefan More, Sebastian Ramacher, Miha Stopar
2021 J jnl
Privacy-preserving Analytics for Data Markets using MPC.
CoRR
Karl W. Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
2021 B conf
Steering Drivers of Change: Maximising Benefits of Trustworthy IoT.
EuroSPI
Omar Veledar, Eric Armengaud, Leo Happ Botler, Violeta Damjanovic-Behrendt, Christian Derler, Stefan Jaksic, Lukas Krammer, Christian Lettner, Georg Macher, Stefan Marksteiner, Andreas Martin, Martin Matschnig, Peter Priller, Sebastian Ramacher, Kay Römer, Christoph Schmittner, Christina Tiefnig, Heribert Vallant, Heinz Weiskirchner, Mario Drobics
2021 — conf
Updatable Signatures and Message Authentication Codes.
Public Key Cryptography (1)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
2021 J jnl
Updatable Signatures and Message Authentication Codes.
IACR Cryptol. ePrint Arch.
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks, Erkan Tairi
2020 J jnl
CCA-Secure (Puncturable) KEMs from Encryption With Non-Negligible Decryption Errors.
IACR Cryptol. ePrint Arch.
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2020 — conf
CCA-Secure (Puncturable) KEMs from Encryption with Non-Negligible Decryption Errors.
ASIACRYPT (1)
Valerio Cini, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2020 B conf
Efficient FPGA Implementations of LowMC and Picnic.
CT-RSA
Daniel Kales, Sebastian Ramacher, Christian Rechberger, Roman Walch, Mario Werner
2020 A* conf
Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically.
CCS
Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig
2020 J jnl
Lift-and-Shift: Obtaining Simulation Extractable Subversion and Updatable SNARKs Generically.
IACR Cryptol. ePrint Arch.
Behzad Abdolmaleki, Sebastian Ramacher, Daniel Slamanig
2020 J jnl
Multi-Party Revocation in Sovrin: Performance through Distributed Trust.
IACR Cryptol. ePrint Arch.
Lukas Helminger, Daniel Kales, Sebastian Ramacher, Roman Walch
2020 — conf
Privacy-Preserving Analytics for Data Markets Using MPC.
Privacy and Identity Management
Karl W. Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
2020 J jnl
Selective end-to-end data-sharing in the cloud.
J. Bank. Financial Technol.
Felix Hörandner, Sebastian Ramacher, Simon Roth
2020 — conf
Short-Lived Forward-Secure Delegation for TLS.
CCSW
Lukas Alber, Stefan More, Sebastian Ramacher
2020 J jnl
Short-Lived Forward-Secure Delegation for TLS.
CoRR
Lukas Alber, Stefan More, Sebastian Ramacher
2019 J jnl
Efficient FPGA Implementations of LowMC and Picnic.
IACR Cryptol. ePrint Arch.
Daniel Kales, Sebastian Ramacher, Christian Rechberger, Roman Walch, Mario Werner
2019 — conf
Feistel Structures for MPC, and More.
ESORICS (2)
Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger
2019 J jnl
Feistel Structures for MPC, and More.
IACR Cryptol. ePrint Arch.
Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger
2019 J jnl
I Want to Forget: Fine-Grained Encryption with Full Forward Secrecy in the Distributed Setting.
IACR Cryptol. ePrint Arch.
David Derler, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2019 — conf
Linear Equivalence of Block Ciphers with Partial Non-Linear Layers: Application to LowMC.
EUROCRYPT (1)
Itai Dinur, Daniel Kales, Angela Promitzer, Sebastian Ramacher, Christian Rechberger
2019 C conf
Privacy-Preserving eID Derivation for Self-Sovereign Identity Systems.
ICICS
Andreas Abraham, Felix Hörandner, Olamide Omolola, Sebastian Ramacher
2019 A conf
Revisiting User Privacy for Certificate Transparency.
EuroS&P
Daniel Kales, Olamide Omolola, Sebastian Ramacher
2019 Misc conf
Selective End-To-End Data-Sharing in the Cloud.
ICISS
Felix Hörandner, Sebastian Ramacher, Simon Roth
2018 J jnl
Generic Double-Authentication Preventing Signatures and a Post-Quantum Instantiation.
IACR Cryptol. ePrint Arch.
David Derler, Sebastian Ramacher, Daniel Slamanig
2018 C conf
Generic Double-Authentication Preventing Signatures and a Post-quantum Instantiation.
ProvSec
David Derler, Sebastian Ramacher, Daniel Slamanig
2018 C conf
Post-Quantum Zero-Knowledge Proofs for Accumulators with Applications to Ring Signatures from Symmetric-Key Primitives.
PQCrypto
David Derler, Sebastian Ramacher, Daniel Slamanig
2018 J jnl
Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications.
IACR Cryptol. ePrint Arch.
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2018 — conf
Revisiting Proxy Re-encryption: Forward Secrecy, Improved Security, and Applications.
Public Key Cryptography (1)
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
2018 A conf
Short Double- and N-Times-Authentication-Preventing Signatures from ECDSA and More.
EuroS&P
David Derler, Sebastian Ramacher, Daniel Slamanig
2017 — conf
Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation.
Financial Cryptography
David Derler, Sebastian Ramacher, Daniel Slamanig
2017 J jnl
Homomorphic Proxy Re-Authenticators and Applications to Verifiable Multi-User Data Aggregation.
IACR Cryptol. ePrint Arch.
David Derler, Sebastian Ramacher, Daniel Slamanig
2017 J jnl
Improvements to the Linear Layer of LowMC: A Faster Picnic.
IACR Cryptol. ePrint Arch.
Léo Perrin, Angela Promitzer, Sebastian Ramacher, Christian Rechberger
2017 J jnl
Post-Quantum Zero-Knowledge Proofs for Accumulators with Applications to Ring Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch.
David Derler, Sebastian Ramacher, Daniel Slamanig
2017 A* conf
Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives.
CCS
Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Greg Zaverucha
2017 J jnl
Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch.
Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Greg Zaverucha
2017 J jnl
Short Double- and N-Times-Authentication-Preventing Signatures from ECDSA and More.
IACR Cryptol. ePrint Arch.
David Derler, Sebastian Ramacher, Daniel Slamanig
2016 J jnl
Digital Signatures from Symmetric-Key Primitives.
IACR Cryptol. ePrint Arch.
David Derler, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig