Karen Azari

According to our database, Karen Azari authored at least 28 papers between 2017 and 2026.

Collaborative distances:

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

2026

On Verifiable Delay Functions from Time-Lock Puzzles.

Hamza Abusalah, Karen Azari, Dario Fiore, Chethan Kamath, Erkan Tairi

Proceedings of the Public-Key Cryptography - PKC 2026, 2026

Impossibility of VDFs in the ROM: The Complete Picture.

Hamza Abusalah, Karen Azari, Chethan Kamath, Erkan Tairi, Maximilian von Consbruch

Proceedings of the Advances in Cryptology - EUROCRYPT 2026, 2026

Separating Verifiable Delay Functions and Time-Lock Puzzles.

Hamza Abusalah, Nivesh Aggarwal, Karen Azari, Chethan Kamath, Maximilian von Consbruch

Proceedings of the Advances in Cryptology - EUROCRYPT 2026, 2026

2025

Security Amplification of Threshold Signatures in the Standard Model.

Karen Azari, Cecilia Boschini, Kristina Hostáková, Michael Reichle

Proceedings of the Theory of Cryptography - 23rd International Conference, 2025

Securely Instantiating 'Half Gates' Garbling in the Standard Model.

Anasuya Acharya, Karen Azari, Mirza Ahad Baig, Dennis Hofheinz, Chethan Kamath

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

On the Adaptive Security of Free-XOR-Based Garbling Schemes in the Plain Model.

Anasuya Acharya, Karen Azari, Chethan Kamath

Proceedings of the Advances in Cryptology - EUROCRYPT 2025, 2025

Tighter Provable Security for TreeKEM.

Karen Azari, Andreas Ellison

Proceedings of the Applied Cryptography and Network Security, 2025

2024

Tighter Security for Group Key Agreement in the Random Oracle Model.

Andreas Ellison, Karen Klein

IACR Cryptol. ePrint Arch., 2024

DeCAF: Decentralizable CGKA with Fast Healing.

Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzyzstof Pietrzak

Proceedings of the Security and Cryptography for Networks - 14th International Conference, 2024

Compact Selective Opening Security from LWE.

Dennis Hofheinz, Kristina Hostáková, Julia Kastner, Karen Klein, Akin Ünal

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

2023

Compact Lossy Trapdoor Functions and Selective Opening Security From LWE.

Dennis Hofheinz, Kristina Hostáková, Julia Kastner, Karen Klein, Akin Ünal

IACR Cryptol. ePrint Arch., 2023

The Power of Undirected Rewindings for Adaptive Security.

Dennis Hofheinz, Julia Kastner, Karen Klein

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

2022

Coffee: Fast Healing Concurrent Continuous Group Key Agreement for Decentralized Group Messaging.

Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak

IACR Cryptol. ePrint Arch., 2022

CoCoA: Concurrent Continuous Group Key Agreement.

Joël Alwen, Benedikt Auerbach, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter

Proceedings of the Advances in Cryptology - EUROCRYPT 2022 - 41st Annual International Conference on the Theory and Applications of Cryptographic Techniques, Trondheim, Norway, May 30, 2022

Practical Statistically-Sound Proofs of Exponentiation in Any Group.

Charlotte Hoffmann, Pavel Hubácek, Chethan Kamath, Karen Klein, Krzysztof Pietrzak

Proceedings of the Advances in Cryptology - CRYPTO 2022, 2022

SNACKs: Leveraging Proofs of Sequential Work for Blockchain Light Clients.

Hamza Abusalah, Georg Fuchsbauer, Peter Gazi, Karen Klein

Proceedings of the Advances in Cryptology - ASIACRYPT 2022, 2022

2021

On the Cost of Adaptivity in Graph-Based Games.

Chethan Kamath, Karen Klein, Krzysztof Pietrzak, Michael Walter

IACR Cryptol. ePrint Arch., 2021

On Treewidth, Separators and Yao's Garbling.

Chethan Kamath, Karen Klein, Krzysztof Pietrzak

Proceedings of the Theory of Cryptography - 19th International Conference, 2021

The Cost of Adaptivity in Security Games on Graphs.

Chethan Kamath, Karen Klein, Krzysztof Pietrzak, Michael Walter

Proceedings of the Theory of Cryptography - 19th International Conference, 2021

Grafting Key Trees: Efficient Key Management for Overlapping Groups.

Joël Alwen, Benedikt Auerbach, Mirza Ahad Baig, Miguel Cueto Noval, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter

Proceedings of the Theory of Cryptography - 19th International Conference, 2021

Keep the Dirt: Tainted TreeKEM, Adaptively and Actively Secure Continuous Group Key Agreement.

Karen Klein, Guillermo Pascual-Perez, Michael Walter, Chethan Kamath, Margarita Capretto, Miguel Cueto, Ilia Markov, Michelle Yeo, Joël Alwen, Krzysztof Pietrzak

Proceedings of the 42nd IEEE Symposium on Security and Privacy, 2021

Inverse-Sybil Attacks in Automated Contact Tracing.

Benedikt Auerbach, Suvradip Chakraborty, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter, Michelle Yeo

Proceedings of the Topics in Cryptology - CT-RSA 2021, 2021

Limits on the Adaptive Security of Yao's Garbling.

Chethan Kamath, Karen Klein, Krzysztof Pietrzak, Daniel Wichs

Proceedings of the Advances in Cryptology - CRYPTO 2021, 2021

2019

Keep the Dirt: Tainted TreeKEM, an Efficient and Provably Secure Continuous Group Key Agreement Protocol.

Joël Alwen, Margarita Capretto, Miguel Cueto, Chethan Kamath, Karen Klein, Guillermo Pascual-Perez, Krzysztof Pietrzak, Michael Walter

IACR Cryptol. ePrint Arch., 2019

Adaptively Secure Proxy Re-encryption.

Georg Fuchsbauer, Chethan Kamath, Karen Klein, Krzysztof Pietrzak

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

Reversible Proofs of Sequential Work.

Hamza Abusalah, Chethan Kamath, Karen Klein, Krzysztof Pietrzak, Michael Walter

Proceedings of the Advances in Cryptology - EUROCRYPT 2019, 2019

2018

On the Memory-Hardness of Data-Independent Password-Hashing Functions.

Joël Alwen, Peter Gazi, Chethan Kamath, Karen Klein, Georg Osang, Krzysztof Pietrzak, Leonid Reyzin, Michal Rolínek, Michal Rybár

Proceedings of the 2018 on Asia Conference on Computer and Communications Security, 2018

2017

Be Adaptive, Avoid Overcommitting.

Zahra Jafargholi, Chethan Kamath, Karen Klein, Ilan Komargodski, Krzysztof Pietrzak, Daniel Wichs

Proceedings of the Advances in Cryptology - CRYPTO 2017, 2017