Stephan Krenn

ORCID

Publication Activity (10 Years)

Years Active: 2008-2024
Publications (10 Years): 71

Top Venues

IACR Cryptol. ePrint Arch.

ARES

ERCIM News

CANS

University of Fribourg (PHD)

Education History

University of Fribourg

PHD

Publications

Jesús García Rodríguez, Stephan Krenn, Jorge Bernal Bernabé, Antonio F. Skarmeta
Beyond selective disclosure: Extending distributed p-ABC implementations by commit-and-prove techniques. Comput. Networks 248 (2024)
Jesús García Rodríguez, Stephan Krenn, Daniel Slamanig
To pass or not to pass: Privacy-preserving physical access control. Comput. Secur. 136 (2024)
Veronika Siska, Thomas Lorünser, Stephan Krenn, Christoph Fabianek
Integrating Secure Multiparty Computation into Data Spaces. CLOSER (2024)
Markus Wurzenberger, Stephan Krenn, Max Landauer, Florian Skopik, Cora Perner, Jarno Lötjönen, Jani Päijänen, Georgios Gardikis, Nikos Alabasis, Liisa Sakerman, Kristiina Omri, Juha Röning, Kimmo Halunen, Vincent Thouvenot, Martin Weise, Andreas Rauber, Vasileios Gkioulos, Sokratis K. Katsikas, Luigi Sabetta, Jacopo Bonato, Rocío Ortíz, Daniel Navarro, Nikolaos Stamatelatos, Ioannis Avdoulas, Rudolf Mayer, Andreas Ekelhart, Ioannis Giannoulakis, Emmanouil Kafetzakis, Antonello Corsi, Ulrike Lechner, Corinna Schmitt
NEWSROOM: Towards Automating Cyber Situational Awareness Processes and Tools for Cyber Defence. ARES (2024)
Jesús García Rodríguez, Stephan Krenn, Daniel Slamanig
To Pass or Not to Pass: Privacy-Preserving Physical Access Control. IACR Cryptol. ePrint Arch. 2023 (2023)
Stephan Krenn, Jan Orlicky, Daniel Slamanig, Tomas Trpisovský
RiBAC: Strengthening Access Control Systems for Pandemic Risk Reduction while Preserving Privacy. ARES (2023)
Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Florian Wohner
Outsourced Computations Maintaining Confidentiality and Authenticity. ERCIM News 2023 (133) (2023)
Thomas Lorünser, Stephan Krenn, Christoph Pacher, Bernhard Schrenk
On the Security of Offloading Post-Processing for Quantum Key Distribution. Entropy 25 (2) (2023)
Jesús García Rodríguez, David Goodman, Stephan Krenn, Vasia Liagkou, Rafael Torres Moreno
From Research to Privacy-Preserving Industry Applications - Workshop Summary. Privacy and Identity Management (2022)
Thomas Lorünser, Florian Wohner, Stephan Krenn
A Verifiable Multiparty Computation Solver for the Linear Assignment Problem: And Applications to Air Traffic Management. CCSW@CCS (2022)
Thomas Lorünser, Florian Wohner, Stephan Krenn
A Verifiable Multiparty Computation Solver for the Assignment Problem and Applications to Air Traffic Management. CoRR (2022)
Abida Haque, Stephan Krenn, Daniel Slamanig, Christoph Striecks
Logarithmic-Size (Linkable) Threshold Ring Signatures in the Plain Model. Public Key Cryptography (2) (2022)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
Issuer-Hiding Attribute-Based Credentials. IACR Cryptol. ePrint Arch. 2022 (2022)
Stephan Krenn, Thomas Lorünser
Single-Use Delegatable Signatures Based on Smart Contracts. CoRR (2022)
Thomas Lorünser, Stephan Krenn, Christoph Pacher, Bernhard Schrenk
On the Security of Offloading Post-Processing for Quantum Key Distribution. CoRR (2022)
Karl Koch, Stephan Krenn, Tilen Marc, Stefan More, Sebastian Ramacher
KRAKEN: a privacy-preserving data market for authentic data. DE@CoNEXT (2022)
Thomas Lorünser, Florian Wohner, Stephan Krenn
A Privacy-Preserving Auction Platform with Public Verifiability for Smart Manufacturing. ICISSP (2022)
Jorge Bernal Bernabé, Jesús García Rodríguez, Stephan Krenn, Vasia Liagkou, Antonio F. Skarmeta, Rafael Torres
Privacy-Preserving Identity Management and Applications to Academic Degree Verification. Privacy and Identity Management (2021)
Stephan Krenn, Thomas Lorünser
Single-Use Delegatable Signatures Based on Smart Contracts. ARES (2021)
Karl Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
Privacy-preserving Analytics for Data Markets using MPC. CoRR (2021)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Sebastian Ramacher, Kai Samelin
Issuer-Hiding Attribute-Based Credentials. CANS (2021)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Daniel Slamanig, Christoph Striecks
Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection. AsiaCCS (2020)
David Derler, Stephan Krenn, Kai Samelin, Daniel Slamanig
Fully Collision-Resistant Chameleon-Hashes from Simpler and Post-quantum Assumptions. SCN (2020)
David Derler, Stephan Krenn, Kai Samelin, Daniel Slamanig
Fully Collision-Resistant Chameleon-Hashes from Simpler and Post-Quantum Assumptions. IACR Cryptol. ePrint Arch. 2020 (2020)
Jan Bobolz, Fabian Eidens, Stephan Krenn, Daniel Slamanig, Christoph Striecks
Privacy-Preserving Incentive Systems with Highly Efficient Point-Collection. IACR Cryptol. ePrint Arch. 2020 (2020)
Abida Haque, Stephan Krenn, Daniel Slamanig, Christoph Striecks
Logarithmic-Size (Linkable) Threshold Ring Signatures in the Plain Model. IACR Cryptol. ePrint Arch. 2020 (2020)
Stefan Ruehrup, Stephan Krenn
Towards Privacy in Geographic Message Dissemination for Connected Vehicles. CoRR (2020)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Fully invisible protean signatures schemes. IET Inf. Secur. 14 (3) (2020)
Karl Koch, Stephan Krenn, Donato Pellegrino, Sebastian Ramacher
Privacy-Preserving Analytics for Data Markets Using MPC. Privacy and Identity Management (2020)
Stephan Krenn, Kai Samelin, Christoph Striecks
Practical Group-Signatures with Privacy-Friendly Openings. ARES (2019)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Fully Invisible Protean Signatures Schemes. IACR Cryptol. ePrint Arch. 2019 (2019)
Jan Camenisch, Stephan Krenn, Ralf Küsters, Daniel Rausch
iUC: Flexible Universal Composability Made Simple. ASIACRYPT (3) (2019)
Ulrich Haböck, Stephan Krenn
Breaking and Fixing Anonymous Credentials for the Cloud. CANS (2019)
Stefan Ruehrup, Stephan Krenn
Towards Privacy in Geographic Message Dissemination for Connected Vehicles. ICCVE (2019)
Jan Camenisch, Stephan Krenn, Ralf Küsters, Daniel Rausch
iUC: Flexible Universal Composability Made Simple. IACR Cryptol. ePrint Arch. 2019 (2019)
Stephan Krenn, Kai Samelin, Christoph Striecks
Practical Group-Signatures with Privacy-Friendly Openings. IACR Cryptol. ePrint Arch. 2019 (2019)
Ulrich Haböck, Stephan Krenn
Breaking and Fixing Anonymous Credentials for the Cloud (Full Version). IACR Cryptol. ePrint Arch. 2019 (2019)
Justina Bieliauskaite, Agi Karyda, Stephan Krenn, Erkuden Rios, George Suciu Jr.
TRUSTEE - Data Privacy and Cloud Security Cluster Europe. ERCIM News 2018 (114) (2018)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Protean Signature Schemes. IACR Cryptol. ePrint Arch. 2018 (2018)
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
Revisiting Proxy Re-encryption: Forward Secrecy, Improved Security, and Applications. Public Key Cryptography (1) (2018)
David Derler, Stephan Krenn, Thomas Lorünser, Sebastian Ramacher, Daniel Slamanig, Christoph Striecks
Revisiting Proxy Re-Encryption: Forward Secrecy, Improved Security, and Applications. IACR Cryptol. ePrint Arch. 2018 (2018)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Chameleon-Hashes with Dual Long-Term Trapdoors and Their Applications. AFRICACRYPT (2018)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Chameleon-Hashes with Dual Long-Term Trapdoors and Their Applications. IACR Cryptol. ePrint Arch. 2018 (2018)
Stephan Krenn, Kai Samelin, Dieter Sommer
Stronger Security for Sanitizable Signatures. IACR Cryptol. ePrint Arch. 2018 (2018)
Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Protean Signature Schemes. CANS (2018)
Stephan Krenn, Thomas Lorünser, Christoph Striecks
Engineering Cryptography for Security and Privacy in the Cloud. ERCIM News 2018 (113) (2018)
Thomas Lorünser, Stephan Krenn, Christoph Striecks, Thomas Länger
Agile cryptographic solutions for the cloud. Elektrotech. Informationstechnik 134 (7) (2017)
Michael Till Beck, Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Practical Strongly Invisible and Strongly Accountable Sanitizable Signatures. IACR Cryptol. ePrint Arch. 2017 (2017)
Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Chameleon-Hashes with Ephemeral Trapdoors - And Applications to Invisible Sanitizable Signatures. Public Key Cryptography (2) (2017)
Stephan Krenn, Thomas Lorünser, Anja Salzer, Christoph Striecks
Towards Attribute-Based Credentials in the Cloud. CANS (2017)
Alexandros Kostopoulos, Evangelos Sfakianakis, Ioannis P. Chochliouros, John Sören Pettersson, Stephan Krenn, Welderufael Tesfay, Andrea Migliavacca, Felix Hörandner
Towards the Adoption of Secure Cloud Identity Services. ARES (2017)
Michael Till Beck, Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Practical Strongly Invisible and Strongly Accountable Sanitizable Signatures. ACISP (1) (2017)
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
Secure and Privacy-Friendly Storage and Data Processing in the Cloud. Privacy and Identity Management (2017)
Jan Camenisch, David Derler, Stephan Krenn, Henrich C. Pöhls, Kai Samelin, Daniel Slamanig
Chameleon-Hashes with Ephemeral Trapdoors And Applications to Invisible Sanitizable Signatures. IACR Cryptol. ePrint Arch. 2017 (2017)
Stephan Krenn, Thomas Lorünser, Christoph Striecks
Batch-verifiable Secret Sharing with Unconditional Privacy. ICISSP (2017)
David Derler, Stephan Krenn, Daniel Slamanig
Signer-Anonymous Designated-Verifier Redactable Signatures for Cloud-Based Data Sharing. CANS (2016)
Bernd Zwattendorfer, Stephan Krenn, Thomas Lorünser
Secure and Privacy-Preserving Identity Management in the Cloud. ERCIM News 2016 (104) (2016)
Felix Hörandner, Stephan Krenn, Andrea Migliavacca, Florian Thiemer, Bernd Zwattendorfer
CREDENTIAL: A Framework for Privacy-Preserving Cloud-Based Data Sharing. ARES (2016)
Denise Demirel, Stephan Krenn, Thomas Lorünser, Giulia Traverso
Efficient and Privacy Preserving Third Party Auditing for a Distributed Storage System. ARES (2016)
Stephan Krenn, Krzysztof Pietrzak, Akshay Wadia, Daniel Wichs
A counterexample to the chain rule for conditional HILL entropy. Comput. Complex. 25 (3) (2016)
David Derler, Stephan Krenn, Daniel Slamanig
Signer-Anonymous Designated-Verifier Redactable Signatures for Cloud-Based Data Sharing. IACR Cryptol. ePrint Arch. 2016 (2016)
Jan Camenisch, Robert R. Enderlein, Stephan Krenn, Ralf Küsters, Daniel Rausch
Universal Composition with Responsive Environments. ASIACRYPT (2) (2016)
Nicolás Notario, Stephan Krenn, Bernd Zwattendorfer, Felix Hörandner
CREDENTIAL: Secure Cloud Identity Wallet. ERCIM News 2016 (106) (2016)
Andreas Happe, Stephan Krenn, Thomas Lorünser
Malicious Clients in Distributed Secret Sharing Based Storage Networks. Security Protocols Workshop (2016)
Farzaneh Karegar, Christoph Striecks, Stephan Krenn, Felix Hörandner, Thomas Lorünser, Simone Fischer-Hübner
Opportunities and Challenges of CREDENTIAL - Towards a Metadata-Privacy Respecting Identity Provider. Privacy and Identity Management (2016)
Jan Camenisch, Robert R. Enderlein, Stephan Krenn, Ralf Küsters, Daniel Rausch
Universal Composition with Responsive Environments. IACR Cryptol. ePrint Arch. 2016 (2016)
Michael Till Beck, Stephan Krenn, Franz-Stefan Preiss, Kai Samelin
Practical Signing-Right Revocation. TRUST (2016)
Stephan Krenn, Kai Samelin, Dieter Sommer
Stronger Security for Sanitizable Signatures. DPM/QASA@ESORICS (2015)
Jan Camenisch, Stephan Krenn, Anja Lehmann, Gert Læssøe Mikkelsen, Gregory Neven, Michael Østergaard Pedersen
Formal Treatment of Privacy-Enhancing Credential Systems. SAC (2015)
Foteini Baldimtsi, Jan Camenisch, Lucjan Hanzlik, Stephan Krenn, Anja Lehmann, Gregory Neven
Recovering Lost Device-Bound Credentials. ACNS (2015)
Fabrice Benhamouda, Stephan Krenn, Vadim Lyubashevsky, Krzysztof Pietrzak
Efficient Zero-Knowledge Proofs for Commitments from Learning with Errors over Rings. ESORICS (1) (2015)
Stephan Krenn, Krzysztof Pietrzak, Akshay Wadia, Daniel Wichs
A Counterexample to the Chain Rule for Conditional HILL Entropy. IACR Cryptol. ePrint Arch. 2014 (2014)
Jan Camenisch, Stephan Krenn, Anja Lehmann, Gert Læssøe Mikkelsen, Gregory Neven, Michael Østergaard Pedersen
Formal Treatment of Privacy-Enhancing Credential Systems. IACR Cryptol. ePrint Arch. 2014 (2014)
Fabrice Benhamouda, Stephan Krenn, Vadim Lyubashevsky, Krzysztof Pietrzak
Efficient Zero-Knowledge Proofs for Commitments from Learning With Errors over Rings. IACR Cryptol. ePrint Arch. 2014 (2014)
Fabrice Benhamouda, Jan Camenisch, Stephan Krenn, Vadim Lyubashevsky, Gregory Neven
Better Zero-Knowledge Proofs for Lattice Encryption and Their Application to Group Signatures. ASIACRYPT (1) (2014)
Joël Alwen, Stephan Krenn, Krzysztof Pietrzak, Daniel Wichs
Learning with Rounding, Revisited - New Reduction, Properties and Applications. CRYPTO (1) (2013)
Stephan Krenn, Krzysztof Pietrzak, Akshay Wadia
A Counterexample to the Chain Rule for Conditional HILL Entropy - And What Deniable Encryption Has to Do with It. TCC (2013)
Joël Alwen, Stephan Krenn, Krzysztof Pietrzak, Daniel Wichs
Learning with Rounding, Revisited: New Reduction, Properties and Applications. IACR Cryptol. ePrint Arch. 2013 (2013)
José Bacelar Almeida, Manuel Barbosa, Endre Bangerter, Gilles Barthe, Stephan Krenn, Santiago Zanella Béguelin
Full Proof Cryptography: Verifiable Compilation of Efficient Zero-Knowledge Protocols. IACR Cryptol. ePrint Arch. 2012 (2012)
Abhishek Jain, Stephan Krenn, Krzysztof Pietrzak, Aris Tentes
Commitments and Efficient Zero-Knowledge Proofs from Learning Parity with Noise. ASIACRYPT (2012)
José Bacelar Almeida, Manuel Barbosa, Endre Bangerter, Gilles Barthe, Stephan Krenn, Santiago Zanella Béguelin
Full proof cryptography: verifiable compilation of efficient zero-knowledge protocols. CCS (2012)
Abhishek Jain, Stephan Krenn, Krzysztof Pietrzak, Aris Tentes
Commitments and Efficient Zero-Knowledge Proofs from Hard Learning Problems. IACR Cryptol. ePrint Arch. 2012 (2012)
Endre Bangerter, Stephan Krenn, Matrial Seifriz, Ulrich Ultes-Nitsche
cPLC - A Cryptographic Programming Language and Compiler. ISSA (2011)
David Gullasch, Endre Bangerter, Stephan Krenn
Cache Games - Bringing Access-Based Cache Attacks on AES to Practice. IEEE Symposium on Security and Privacy (2011)
Jan Camenisch, Stephan Krenn, Victor Shoup
A Framework for Practical Universally Composable Zero-Knowledge Protocols. IACR Cryptol. ePrint Arch. 2011 (2011)
Jan Camenisch, Stephan Krenn, Victor Shoup
A Framework for Practical Universally Composable Zero-Knowledge Protocols. ASIACRYPT (2011)
José Bacelar Almeida, Endre Bangerter, Manuel Barbosa, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider
A Certifying Compiler for Zero-Knowledge Proofs of Knowledge Based on Sigma-Protocols. IACR Cryptol. ePrint Arch. 2010 (2010)
Endre Bangerter, David Gullasch, Stephan Krenn
Cache Games - Bringing Access Based Cache Attacks on AES to Practice. IACR Cryptol. ePrint Arch. 2010 (2010)
José Bacelar Almeida, Endre Bangerter, Manuel Barbosa, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider
A Certifying Compiler for Zero-Knowledge Proofs of Knowledge Based on Sigma-Protocols. ESORICS (2010)
Endre Bangerter, Jan Camenisch, Stephan Krenn
Efficiency Limitations for Σ-Protocols for Group Homomorphisms. TCC (2010)
Endre Bangerter, Stefania Barzan, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider, Joe-Kai Tsay
Bringing Zero-Knowledge Proofs of Knowledge to Practice. Security Protocols Workshop (2009)
Endre Bangerter, Stefania Barzan, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider, Joe-Kai Tsay
Bringing Zero-Knowledge Proofs of Knowledge to Practice. IACR Cryptol. ePrint Arch. 2009 (2009)
Endre Bangerter, Thomas Briner, Wilko Henecka, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider
Automatic Generation of Sigma-Protocols. EuroPKI (2009)
Endre Bangerter, Jan Camenisch, Stephan Krenn
Efficiency Limitations for Sigma-Protocols for Group Homomorphisms. IACR Cryptol. ePrint Arch. 2009 (2009)
Stephan Krenn
Bringing Zero-Knowledge Proofs of Knowledge to Practice. Security Protocols Workshop (2009)
Endre Bangerter, Jan Camenisch, Stephan Krenn, Ahmad-Reza Sadeghi, Thomas Schneider
Automatic Generation of Sound Zero-Knowledge Protocols. IACR Cryptol. ePrint Arch. 2008 (2008)

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Publication Activity (10 Years)

Top Topics

Top Venues

Stephan Krenn