Stephan Krenn

According to our database, Stephan Krenn authored at least 68 papers between 2008 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2023

On the Security of Offloading Post-Processing for Quantum Key Distribution.

Thomas Lorünser, Stephan Krenn, Christoph Pacher, Bernhard Schrenk

Entropy, February, 2023

To Pass or Not to Pass: Privacy-Preserving Physical Access Control.

Jesús García Rodríguez, Stephan Krenn, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2023

Outsourced Computations Maintaining Confidentiality and Authenticity.

Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Florian Wohner

ERCIM News, 2023

RiBAC: Strengthening Access Control Systems for Pandemic Risk Reduction while Preserving Privacy.

Stephan Krenn, Jan Orlicky, Daniel Slamanig, Tomas Trpisovský

Proceedings of the 18th International Conference on Availability, Reliability and Security, 2023

2022

Issuer-Hiding Attribute-Based Credentials.

Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin

IACR Cryptol. ePrint Arch., 2022

A Verifiable Multiparty Computation Solver for the Assignment Problem and Applications to Air Traffic Management.

Thomas Lorünser, Florian Wohner, Stephan Krenn

CoRR, 2022

From Research to Privacy-Preserving Industry Applications - Workshop Summary.

Jesús García Rodríguez, David Goodman, Stephan Krenn, Vasia Liagkou, Rafael Torres Moreno

Proceedings of the Privacy and Identity Management - 17th IFIP WG 9.2, 9.6/11.7, 11.6/SIG 9.2.2 International Summer School, Privacy and Identity 2022, Virtual Event, August 30, 2022

A Privacy-Preserving Auction Platform with Public Verifiability for Smart Manufacturing.

Thomas Lorünser, Florian Wohner, Stephan Krenn

Proceedings of the 8th International Conference on Information Systems Security and Privacy, 2022

KRAKEN: a privacy-preserving data market for authentic data.

Karl Koch, Stephan Krenn, Tilen Marc, Stefan More, Sebastian Ramacher

Proceedings of the 1st International Workshop on Data Economy, 2022

A Verifiable Multiparty Computation Solver for the Linear Assignment Problem: And Applications to Air Traffic Management.

Thomas Lorünser, Florian Wohner, Stephan Krenn

Proceedings of the 2022 on Cloud Computing Security Workshop, 2022

KRAKEN: A Secure, Trusted, Regulatory-Compliant, and Privacy-Preserving Data Sharing Platform.

Silvia Gabrielli, Stephan Krenn, Donato Pellegrino, Juan Carlos Pérez Baún, Pilar Perez Berganza, Sebastian Ramacher, Wim Vandevelde

Proceedings of the Data Spaces - Design, 2022

2021

Privacy-Preserving Identity Management and Applications to Academic Degree Verification.

Jorge Bernal Bernabé, Jesús García Rodríguez, Stephan Krenn, Vasia Liagkou, Antonio F. Skarmeta, Rafael Torres

Proceedings of the Privacy and Identity Management. Between Data Protection and Security, 2021

Single-Use Delegatable Signatures Based on Smart Contracts.

Stephan Krenn, Thomas Lorünser

Proceedings of the ARES 2021: The 16th International Conference on Availability, 2021

2020

Fully invisible protean signatures schemes.

Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig

IET Inf. Secur., 2020

Logarithmic-Size (Linkable) Threshold Ring Signatures in the Plain Model.

Abida Haque, Stephan Krenn, Daniel Slamanig, Christoph Striecks

IACR Cryptol. ePrint Arch., 2020

Fully Collision-Resistant Chameleon-Hashes from Simpler and Post-Quantum Assumptions.

David Derler, Stephan Krenn, Kai Samelin, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2020

Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection.

Jan Bobolz, Fabian Eidens, Stephan Krenn, Daniel Slamanig, Christoph Striecks

IACR Cryptol. ePrint Arch., 2020

Privacy-Preserving Analytics for Data Markets Using MPC.

Karl Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher

Proceedings of the Privacy and Identity Management: 15th IFIP WG 9.2, 2020

2019

Practical Group-Signatures with Privacy-Friendly Openings.

Stephan Krenn, Kai Samelin, Christoph Striecks

IACR Cryptol. ePrint Arch., 2019

Breaking and Fixing Anonymous Credentials for the Cloud (Full Version).

Ulrich Haböck, Stephan Krenn

IACR Cryptol. ePrint Arch., 2019

iUC: Flexible Universal Composability Made Simple.

Jan Camenisch, Stephan Krenn, Ralf Küsters, Daniel Rausch

IACR Cryptol. ePrint Arch., 2019

Towards Privacy in Geographic Message Dissemination for Connected Vehicles.

Stefan Ruehrup, Stephan Krenn

Proceedings of the 2019 IEEE International Conference on Connected Vehicles and Expo, 2019

Breaking and Fixing Anonymous Credentials for the Cloud.

Ulrich Haböck, Stephan Krenn

Proceedings of the Cryptology and Network Security - 18th International Conference, 2019

2018

Stronger Security for Sanitizable Signatures.

Stephan Krenn, Kai Samelin, Dieter Sommer

IACR Cryptol. ePrint Arch., 2018

Chameleon-Hashes with Dual Long-Term Trapdoors and Their Applications.

Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2018

Protean Signature Schemes.

Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2018

Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications.

David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks

IACR Cryptol. ePrint Arch., 2018

Engineering Cryptography for Security and Privacy in the Cloud.

Stephan Krenn, Thomas Lorünser, Christoph Striecks

ERCIM News, 2018

TRUSTEE - Data Privacy and Cloud Security Cluster Europe.

Justina Bieliauskaite, Agi Karyda, Stephan Krenn, Erkuden Rios, George Suciu Jr.

ERCIM News, 2018

2017

Chameleon-Hashes with Ephemeral Trapdoors And Applications to Invisible Sanitizable Signatures.

Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2017

Practical Strongly Invisible and Strongly Accountable Sanitizable Signatures.

Michael Till Beck, Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2017

Agile cryptographic solutions for the cloud.

Thomas Lorünser, Stephan Krenn, Christoph Striecks, Thomas Länger

Elektrotech. Informationstechnik, 2017

Secure and Privacy-Friendly Storage and Data Processing in the Cloud.

Pasquale Chiaro, Simone Fischer-Hübner, Thomas Groß, Stephan Krenn, Thomas Lorünser, Ana Isabel Martínez Garcí, Andrea Migliavacca, Kai Rannenberg, Daniel Slamanig, Christoph Striecks, Alberto Zanini

Proceedings of the Privacy and Identity Management. The Smart Revolution, 2017

Batch-verifiable Secret Sharing with Unconditional Privacy.

Stephan Krenn, Thomas Lorünser, Christoph Striecks

Proceedings of the 3rd International Conference on Information Systems Security and Privacy, 2017

Towards Attribute-Based Credentials in the Cloud.

Stephan Krenn, Thomas Lorünser, Anja Salzer, Christoph Striecks

Proceedings of the Cryptology and Network Security - 16th International Conference, 2017

Towards the Adoption of Secure Cloud Identity Services.

Alexandros Kostopoulos, Evangelos Sfakianakis, Ioannis P. Chochliouros, John Sören Pettersson, Stephan Krenn, Welderufael Tesfay, Andrea Migliavacca, Felix Hörandner

Proceedings of the 12th International Conference on Availability, Reliability and Security, Reggio Calabria, Italy, August 29, 2017

2016

Signer-Anonymous Designated-Verifier Redactable Signatures for Cloud-Based Data Sharing.

David Derler, Stephan Krenn, Daniel Slamanig

IACR Cryptol. ePrint Arch., 2016

Universal Composition with Responsive Environments.

Jan Camenisch, Robert R. Enderlein, Stephan Krenn, Ralf Küsters, Daniel Rausch

IACR Cryptol. ePrint Arch., 2016

Secure and Privacy-Preserving Identity Management in the Cloud.

Bernd Zwattendorfer, Stephan Krenn, Thomas Lorünser

ERCIM News, 2016

CREDENTIAL: Secure Cloud Identity Wallet.

Nicolás Notario, Stephan Krenn, Bernd Zwattendorfer, Felix Hörandner

ERCIM News, 2016

A counterexample to the chain rule for conditional HILL entropy.

Stephan Krenn, Krzysztof Pietrzak, Akshay Wadia, Daniel Wichs

Comput. Complex., 2016

Practical Signing-Right Revocation.

Michael Till Beck, Stephan Krenn, Franz-Stefan Preiss, Kai Samelin

Proceedings of the Trust and Trustworthy Computing - 9th International Conference, 2016

Malicious Clients in Distributed Secret Sharing Based Storage Networks.

Andreas Happe, Stephan Krenn, Thomas Lorünser

Proceedings of the Security Protocols XXIV, 2016

Opportunities and Challenges of CREDENTIAL - Towards a Metadata-Privacy Respecting Identity Provider.

Farzaneh Karegar, Christoph Striecks, Stephan Krenn, Felix Hörandner, Thomas Lorünser, Simone Fischer-Hübner

Proceedings of the Privacy and Identity Management. Facing up to Next Steps, 2016

CREDENTIAL: A Framework for Privacy-Preserving Cloud-Based Data Sharing.

Felix Hörandner, Stephan Krenn, Andrea Migliavacca, Florian Thiemer, Bernd Zwattendorfer

Proceedings of the 11th International Conference on Availability, Reliability and Security, 2016

Efficient and Privacy Preserving Third Party Auditing for a Distributed Storage System.

Denise Demirel, Stephan Krenn, Thomas Lorünser, Giulia Traverso

Proceedings of the 11th International Conference on Availability, Reliability and Security, 2016

2015

Recovering Lost Device-Bound Credentials.

Foteini Baldimtsi, Jan Camenisch, Lucjan Hanzlik, Stephan Krenn, Anja Lehmann, Gregory Neven

Proceedings of the Applied Cryptography and Network Security, 2015

Cryptographic Protocols Underlying Privacy-ABCs.

Patrik Bichsel, Jan Camenisch, Maria Dubovitskaya, Robert R. Enderlein, Stephan Krenn, Anja Lehmann, Gregory Neven, Franz-Stefan Preiss

Proceedings of the Attribute-based Credentials for Trust: Identity in the Information Society, 2015

An Architecture for Privacy-ABCs.

Patrik Bichsel, Jan Camenisch, Maria Dubovitskaya, Robert R. Enderlein, Stephan Krenn, Ioannis Krontiris, Anja Lehmann, Gregory Neven, Christian Paquin, Franz-Stefan Preiss, Kai Rannenberg, Ahmad Sabouri

Proceedings of the Attribute-based Credentials for Trust: Identity in the Information Society, 2015

2014

Formal Treatment of Privacy-Enhancing Credential Systems.

Jan Camenisch, Stephan Krenn, Anja Lehmann, Gert Læssøe Mikkelsen, Gregory Neven, Michael Østergaard Pedersen

IACR Cryptol. ePrint Arch., 2014

Efficient Zero-Knowledge Proofs for Commitments from Learning With Errors over Rings.

Fabrice Benhamouda, Stephan Krenn, Vadim Lyubashevsky, Krzysztof Pietrzak

IACR Cryptol. ePrint Arch., 2014

Better Zero-Knowledge Proofs for Lattice Encryption and Their Application to Group Signatures.

Fabrice Benhamouda, Jan Camenisch, Stephan Krenn, Vadim Lyubashevsky, Gregory Neven

Proceedings of the Advances in Cryptology - ASIACRYPT 2014, 2014

2013

Learning with Rounding, Revisited: New Reduction, Properties and Applications.

Joël Alwen, Stephan Krenn, Krzysztof Pietrzak, Daniel Wichs

IACR Cryptol. ePrint Arch., 2013

A Counterexample to the Chain Rule for Conditional HILL Entropy - And What Deniable Encryption Has to Do with It.

Stephan Krenn, Krzysztof Pietrzak, Akshay Wadia

Proceedings of the Theory of Cryptography - 10th Theory of Cryptography Conference, 2013

2012

Bringing zero-knowledge proofs of knowledge to practice.

Stephan Krenn

PhD thesis, 2012

Full Proof Cryptography: Verifiable Compilation of Efficient Zero-Knowledge Protocols.

José Bacelar Almeida, Manuel Barbosa, Endre Bangerter, Gilles Barthe, Stephan Krenn, Santiago Zanella Béguelin

IACR Cryptol. ePrint Arch., 2012

Commitments and Efficient Zero-Knowledge Proofs from Hard Learning Problems.

Abhishek Jain, Stephan Krenn, Krzysztof Pietrzak, Aris Tentes

IACR Cryptol. ePrint Arch., 2012

Commitments and Efficient Zero-Knowledge Proofs from Learning Parity with Noise.

Abhishek Jain, Stephan Krenn, Krzysztof Pietrzak, Aris Tentes

Proceedings of the Advances in Cryptology - ASIACRYPT 2012, 2012

2011

A Framework for Practical Universally Composable Zero-Knowledge Protocols.

Jan Camenisch, Stephan Krenn, Victor Shoup

IACR Cryptol. ePrint Arch., 2011

cPLC - A Cryptographic Programming Language and Compiler.

Endre Bangerter, Stephan Krenn, Matrial Seifriz, Ulrich Ultes-Nitsche

Proceedings of the Information Security South Africa Conference 2011, 2011

2010

Cache Games - Bringing Access Based Cache Attacks on AES to Practice.

Endre Bangerter, David Gullasch, Stephan Krenn

IACR Cryptol. ePrint Arch., 2010

A Certifying Compiler for Zero-Knowledge Proofs of Knowledge Based on Sigma-Protocols.

José Bacelar Almeida, Endre Bangerter, Manuel Barbosa, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider

IACR Cryptol. ePrint Arch., 2010

Efficiency Limitations for Σ-Protocols for Group Homomorphisms.

Endre Bangerter, Jan Camenisch, Stephan Krenn

Proceedings of the Theory of Cryptography, 7th Theory of Cryptography Conference, 2010

2009

Efficiency Limitations for Sigma-Protocols for Group Homomorphisms.

Endre Bangerter, Jan Camenisch, Stephan Krenn

IACR Cryptol. ePrint Arch., 2009

Bringing Zero-Knowledge Proofs of Knowledge to Practice.

Endre Bangerter, Stefania Barzan, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider, Joe-Kai Tsay

IACR Cryptol. ePrint Arch., 2009

Bringing Zero-Knowledge Proofs of Knowledge to Practice.

Stephan Krenn

Proceedings of the Security Protocols XVII, 2009

Automatic Generation of Sigma-Protocols.

Endre Bangerter, Thomas Briner, Wilko Henecka, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider

Proceedings of the Public Key Infrastructures, Services and Applications, 2009

2008

Automatic Generation of Sound Zero-Knowledge Protocols.

Endre Bangerter, Jan Camenisch, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider

IACR Cryptol. ePrint Arch., 2008