Anja Lehmann

According to our database, Anja Lehmann authored at least 78 papers between 2007 and 2025.

Collaborative distances:

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

2025

A Brief Note on Cryptographic Pseudonyms for Anonymous Credentials.

René Mayrhofer, Anja Lehmann, Abhi Shelat

CoRR, October, 2025

Game Changer: A Modular Framework for OPRF Security.

Karla Friedrichs, Anja Lehmann, Cavit Özbay

IACR Cryptol. ePrint Arch., 2025

Commit-and-Prove System for Vectors and Applications to Threshold Signing.

Anja Lehmann, Cavit Özbay

Proceedings of the Public-Key Cryptography - PKC 2025, 2025

Privacy-Preserving Multi-signatures: Generic Techniques and Constructions Without Pairings.

Calvin Abou Haidar, Dipayan Das, Anja Lehmann, Cavit Özbay, Octavio Perez-Kempner

Proceedings of the Public-Key Cryptography - PKC 2025, 2025

Stronger Security for Threshold Blind Signatures.

Anja Lehmann, Phillip Nazarian, Cavit Özbay

Proceedings of the Advances in Cryptology - EUROCRYPT 2025, 2025

Security Analysis of Privately Verifiable Privacy Pass.

Konrad Hanff, Anja Lehmann, Cavit Özbay

Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications Security, 2025

Updatable aPAKE: Security Against Bulk Precomputation Attacks.

Dennis Dayanikli, Anja Lehmann

Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications Security, 2025

Virtual End-to-End Encryption: Analysis of the Doctolib Protocol.

Dennis Dayanikli, Laura Holz, Anja Lehmann

Proceedings of the 20th ACM Asia Conference on Computer and Communications Security, 2025

2024

OPPID: Single Sign-On with Oblivious Pairwise Pseudonyms.

Maximilian Kroschewski, Anja Lehmann, Cavit Özbay

IACR Cryptol. ePrint Arch., 2024

Multi-Signatures for Ad-Hoc and Privacy-Preserving Group Signing.

Anja Lehmann, Cavit Özbay

Proceedings of the Public-Key Cryptography - PKC 2024, 2024

(Strong) aPAKE Revisited: Capturing Multi-User Security and Salting.

Dennis Dayanikli, Anja Lehmann

Proceedings of the 9th IEEE European Symposium on Security and Privacy, 2024

SEKA: Secretless Key Exchange and Authentication in LiFi Networks.

Eric G. Ackermann, Kai Lennert Bober, Volker Jungnickel, Anja Lehmann

Proceedings of the 9th IEEE European Symposium on Security and Privacy, 2024

Provable Security Analysis of the Secure Remote Password Protocol.

Dennis Dayanikli, Anja Lehmann

Proceedings of the 37th IEEE Computer Security Foundations Symposium, 2024

Password-Protected Key Retrieval with(out) HSM Protection.

Sebastian H. Faller, Tobias Handirk, Julia Hesse, Máté Horváth, Anja Lehmann

Proceedings of the 2024 on ACM SIGSAC Conference on Computer and Communications Security, 2024

2023

Save The Implicit Flow? Enabling Privacy-Preserving RP Authentication in OpenID Connect.

Maximilian Kroschewski, Anja Lehmann

Proc. Priv. Enhancing Technol., October, 2023

Privacy-Preserving Outsourced Certificate Validation.

Tarek Galal, Anja Lehmann

IACR Cryptol. ePrint Arch., 2023

Password-Based Credentials with Security Against Server Compromise.

Dennis Dayanikli, Anja Lehmann

Proceedings of the Computer Security - ESORICS 2023, 2023

2022

AI Compliance - Challenges of Bridging Data Science and Law.

Philipp Hacker, Felix Naumann, Tobias Friedrich, Stefan Grundmann, Anja Lehmann, Herbert Zech

ACM J. Data Inf. Qual., 2022

SoK: Oblivious Pseudorandom Functions.

Sílvia Casacuberta, Julia Hesse, Anja Lehmann

Proceedings of the 7th IEEE European Symposium on Security and Privacy, 2022

DPaSE: Distributed Password-Authenticated Symmetric-Key Encryption, or How to Get Many Keys from One Password.

Poulami Das, Julia Hesse, Anja Lehmann

Proceedings of the ASIA CCS '22: ACM Asia Conference on Computer and Communications Security, Nagasaki, Japan, 30 May 2022, 2022

2021

Group Signatures with User-Controlled and Sequential Linkability.

Jesus Diaz, Anja Lehmann

Proceedings of the Public-Key Cryptography - PKC 2021, 2021

Selectively Linkable Group Signatures - Stronger Security and Preserved Verifiability.

Ashley Fraser, Lydia Garms, Anja Lehmann

Proceedings of the Cryptology and Network Security - 20th International Conference, 2021

2020

DPaSE: Distributed Password-Authenticated Symmetric Encryption.

Poulami Das, Julia Hesse, Anja Lehmann

IACR Cryptol. ePrint Arch., 2020

Security and Privacy of Decentralized Cryptographic Contact Tracing.

Noel Danz, Oliver Derwisch, Anja Lehmann, Wenzel Pünter, Marvin Stolle, Joshua Ziemann

IACR Cryptol. ePrint Arch., 2020

Short Threshold Dynamic Group Signatures.

Jan Camenisch, Manu Drijvers, Anja Lehmann, Gregory Neven, Patrick Towa

Proceedings of the Security and Cryptography for Networks - 12th International Conference, 2020

Compact Privacy Protocols from Post-quantum and Timed Classical Assumptions.

Jonathan Bootle, Anja Lehmann, Vadim Lyubashevsky, Gregor Seiler

Proceedings of the Post-Quantum Cryptography - 11th International Conference, 2020

Zone Encryption with Anonymous Authentication for V2V Communication.

Jan Camenisch, Manu Drijvers, Anja Lehmann, Gregory Neven, Patrick Towa

Proceedings of the IEEE European Symposium on Security and Privacy, 2020

PESTO: Proactively Secure Distributed Single Sign-On, or How to Trust a Hacked Server.

Carsten Baum, Tore Kasper Frederiksen, Julia Hesse, Anja Lehmann, Avishay Yanai

Proceedings of the IEEE European Symposium on Security and Privacy, 2020

2019

ScrambleDB: Oblivious (Chameleon) Pseudonymization-as-a-Service.

Anja Lehmann

Proc. Priv. Enhancing Technol., 2019

Identity Management: State of the Art, Challenges and Perspectives.

Tore Kasper Frederiksen, Julia Hesse, Anja Lehmann, Rafael Torres Moreno

Proceedings of the Privacy and Identity Management. Data for Better Living: AI and Privacy, 2019

Group Signatures with Selective Linkability.

Lydia Garms, Anja Lehmann

Proceedings of the Public-Key Cryptography - PKC 2019, 2019

OLYMPUS: towards Oblivious identitY Management for Private and User-friendly Services.

Rafael Torres Moreno, Jorge Bernal Bernabé, Antonio F. Skarmeta, Michael Stausholm, Tore Kasper Frederiksen, Noelia Martínez, Nuno Ponte, Evangelos Sakkopoulos, Anja Lehmann

Proceedings of the 2019 Global IoT Summit, 2019

(R)CCA Secure Updatable Encryption with Integrity Protection.

Michael Klooß, Anja Lehmann, Andy Rupp

Proceedings of the Advances in Cryptology - EUROCRYPT 2019, 2019

A Framework for Efficient Lattice-Based DAA.

Liqun Chen, Nada El Kassem, Anja Lehmann, Vadim Lyubashevsky

Proceedings of the 1st ACM Workshop on Workshop on Cyber-Security Arms Race, 2019

Password-Authenticated Public-Key Encryption.

Tatiana Bradley, Jan Camenisch, Stanislaw Jarecki, Anja Lehmann, Gregory Neven, Jiayu Xu

Proceedings of the Applied Cryptography and Network Security, 2019

2018

Updatable Encryption with Post-Compromise Security.

Anja Lehmann, Björn Tackmann

Proceedings of the Advances in Cryptology - EUROCRYPT 2018 - 37th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Tel Aviv, Israel, April 29, 2018

The Wonderful World of Global Random Oracles.

Jan Camenisch, Manu Drijvers, Tommaso Gagliardoni, Anja Lehmann, Gregory Neven

Proceedings of the Advances in Cryptology - EUROCRYPT 2018 - 37th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Tel Aviv, Israel, April 29, 2018

2017

Privacy for Distributed Databases via (Un)linkable Pseudonyms.

Jan Camenisch, Anja Lehmann

IACR Cryptol. ePrint Arch., 2017

One TPM to Bind Them All: Fixing TPM 2.0 for Provably Secure Anonymous Attestation.

Jan Camenisch, Liqun Chen, Manu Drijvers, Anja Lehmann, David Novick, Rainer Urian

Proceedings of the 2017 IEEE Symposium on Security and Privacy, 2017

Updatable Tokenization: Formal Definitions and Provably Secure Constructions.

Christian Cachin, Jan Camenisch, Eduarda Freire-Stögbuchner, Anja Lehmann

Proceedings of the Financial Cryptography and Data Security, 2017

Privacy-Preserving User-Auditable Pseudonym Systems.

Jan Camenisch, Anja Lehmann

Proceedings of the 2017 IEEE European Symposium on Security and Privacy, 2017

UC-Secure Non-interactive Public-Key Encryption.

Jan Camenisch, Anja Lehmann, Gregory Neven, Kai Samelin

Proceedings of the 30th IEEE Computer Security Foundations Symposium, 2017

Anonymous Attestation with Subverted TPMs.

Jan Camenisch, Manu Drijvers, Anja Lehmann

Proceedings of the Advances in Cryptology - CRYPTO 2017, 2017

2016

Robust Multi-Property Combiners for Hash Functions.

Marc Fischlin, Anja Lehmann, Krzysztof Pietrzak

IACR Cryptol. ePrint Arch., 2016

Anonymous Attestation Using the Strong Diffie Hellman Assumption Revisited.

Jan Camenisch, Manu Drijvers, Anja Lehmann

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

Virtual Smart Cards: How to Sign with a Password and a Server.

Jan Camenisch, Anja Lehmann, Gregory Neven, Kai Samelin

Proceedings of the Security and Cryptography for Networks - 10th International Conference, 2016

Universally Composable Direct Anonymous Attestation.

Jan Camenisch, Manu Drijvers, Anja Lehmann

Proceedings of the Public-Key Cryptography - PKC 2016, 2016

2015

A Single Password for Everything?

Jan Camenisch, Anja Lehmann, Anna Lysyanskaya, Gregory Neven

ERCIM News, 2015

Formal Treatment of Privacy-Enhancing Credential Systems.

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

Proceedings of the Selected Areas in Cryptography - SAC 2015, 2015

Optimal Distributed Password Verification.

Jan Camenisch, Anja Lehmann, Gregory Neven

Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security, 2015

(Un)linkable Pseudonyms for Governmental Databases.

Jan Camenisch, Anja Lehmann

Proceedings of the 22nd ACM SIGSAC Conference on Computer and Communications Security, 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

Concepts and languages for privacy-preserving attribute-based authentication.

Jan Camenisch, Maria Dubovitskaya, Robert R. Enderlein, Anja Lehmann, Gregory Neven, Christian Paquin, Franz-Stefan Preiss

J. Inf. Secur. Appl., 2014

Privacy-Preserving Auditing for Attribute-Based Credentials.

Jan Camenisch, Anja Lehmann, Gregory Neven, Alfredo Rial

Proceedings of the Computer Security - ESORICS 2014, 2014

Memento: How to Reconstruct Your Secrets from a Single Password in a Hostile Environment.

Jan Camenisch, Anja Lehmann, Anna Lysyanskaya, Gregory Neven

Proceedings of the Advances in Cryptology - CRYPTO 2014, 2014

2013

Authentisierung mit der Open eCard App.

Moritz Horsch, Detlef Hühnlein, Anja Lehmann, Johannes Schmölz, Tobias Wich

Datenschutz und Datensicherheit, 2013

Concepts and Languages for Privacy-Preserving Attribute-Based Authentication.

Jan Camenisch, Maria Dubovitskaya, Anja Lehmann, Gregory Neven, Christian Paquin, Franz-Stefan Preiss

Proceedings of the Policies and Research in Identity Management, 2013

2012

Electronic Identities Need Private Credentials.

Jan Camenisch, Anja Lehmann, Gregory Neven

IEEE Secur. Priv., 2012

History-Free Sequential Aggregate Signatures.

Marc Fischlin, Anja Lehmann, Dominique Schröder

Proceedings of the Security and Cryptography for Networks - 8th International Conference, 2012

On the Joint Security of Encryption and Signature in EMV.

Jean Paul Degabriele, Anja Lehmann, Kenneth G. Paterson, Nigel P. Smart, Mario Strefler

Proceedings of the Topics in Cryptology - CT-RSA 2012 - The Cryptographers' Track at the RSA Conference 2012, San Francisco, CA, USA, February 27, 2012

2011

Random Oracles in a Quantum World.

Dan Boneh, Özgür Dagdelen, Marc Fischlin, Anja Lehmann, Christian Schaffner, Mark Zhandry

Proceedings of the Advances in Cryptology - ASIACRYPT 2011, 2011

2010

On the security of hash function combiners.

Anja Lehmann

PhD thesis, 2010

Random Oracles in a Quantum World

Özgür Dagdelen, Marc Fischlin, Anja Lehmann, Christian Schaffner

CoRR, 2010

Delayed-Key Message Authentication for Streams.

Marc Fischlin, Anja Lehmann

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

History-Free Aggregate Message Authentication Codes.

Oliver Eikemeier, Marc Fischlin, Jens-Fabian Götzmann, Anja Lehmann, Dominique Schröder, Peter Schröder, Daniel Wagner

Proceedings of the Security and Cryptography for Networks, 7th International Conference, 2010

Unlinkability of Sanitizable Signatures.

Christina Brzuska, Marc Fischlin, Anja Lehmann, Dominique Schröder

Proceedings of the Public Key Cryptography, 2010

Hash Function Combiners in TLS and SSL.

Marc Fischlin, Anja Lehmann, Daniel Wagner

Proceedings of the Topics in Cryptology, 2010

Random Oracles with(out) Programmability.

Marc Fischlin, Anja Lehmann, Thomas Ristenpart, Thomas Shrimpton, Martijn Stam, Stefano Tessaro

Proceedings of the Advances in Cryptology - ASIACRYPT 2010, 2010

Public-Key Encryption with Non-Interactive Opening: New Constructions and Stronger Definitions.

David Galindo, Benoît Libert, Marc Fischlin, Georg Fuchsbauer, Anja Lehmann, Mark Manulis, Dominique Schröder

Proceedings of the Progress in Cryptology, 2010

2009

Security of Sanitizable Signatures Revisited.

Christina Brzuska, Marc Fischlin, Tobias Freudenreich, Anja Lehmann, Marcus Page, Jakob Schelbert, Dominique Schröder, Florian Volk

Proceedings of the Public Key Cryptography, 2009

Santizable Signatures: How to Partially Delegate Control for Authenticated Data.

Christina Brzuska, Marc Fischlin, Anja Lehmann, Dominique Schröder

Proceedings of the BIOSIG 2009, 2009

A Modular Design for Hash Functions: Towards Making the Mix-Compress-Mix Approach Practical.

Anja Lehmann, Stefano Tessaro

Proceedings of the Advances in Cryptology, 2009

2008

Multi-property Preserving Combiners for Hash Functions.

Marc Fischlin, Anja Lehmann

Proceedings of the Theory of Cryptography, Fifth Theory of Cryptography Conference, 2008

Robust Multi-property Combiners for Hash Functions Revisited.

Marc Fischlin, Anja Lehmann, Krzysztof Pietrzak

Proceedings of the Automata, Languages and Programming, 35th International Colloquium, 2008

2007

Security of Invertible Media Authentication Schemes Revisited.

Daniel Dönigus, Stefan Endler, Marc Fischlin, Andreas Hülsing, Patrick Jäger, Anja Lehmann, Sergey Podrazhansky, Sebastian Schipp, Erik Tews, Sven Vowe, Matthias Walthart, Frederik Weidemann

Proceedings of the Information Hiding, 9th International Workshop, 2007

Security-Amplifying Combiners for Collision-Resistant Hash Functions.

Marc Fischlin, Anja Lehmann

Proceedings of the Advances in Cryptology, 2007