Roman Langrehr

According to our database, Roman Langrehr authored at least 12 papers between 2020 and 2025.

Collaborative distances:

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

2025

Limits on the Power of Constrained PRFs and Identity-based Cryptography.

Roman Langrehr

IACR Cryptol. ePrint Arch., 2025

On Deniable Authentication against Malicious Verifiers.

Rune Fiedler, Roman Langrehr

IACR Cryptol. ePrint Arch., 2025

Malleable SNARKs and Their Applications.

Suvradip Chakraborty, Dennis Hofheinz, Roman Langrehr, Jesper Buus Nielsen, Christoph Striecks, Daniele Venturi

IACR Cryptol. ePrint Arch., 2025

Non-Interactive Key Exchange: New Notions, New Constructions, and Forward Security.

Suvradip Chakraborty, Dennis Hofheinz, Roman Langrehr

IACR Cryptol. ePrint Arch., 2025

2024

On the Black-Box Complexity of Private-Key Inner-Product Functional Encryption.

Mohammad Hajiabadi, Roman Langrehr, Adam O'Neill, Mingyuan Wang

IACR Cryptol. ePrint Arch., 2024

Access-Controlled Inner Product Function-Revealing Encryption.

Ojaswi Acharya, Weiqi Feng, Roman Langrehr, Adam O'Neill

IACR Cryptol. ePrint Arch., 2024

2023

On the Multi-User Security of LWE-based NIKE.

Roman Langrehr

IACR Cryptol. ePrint Arch., 2023

2022

On Structure-Preserving Cryptography and Lattices.

Dennis Hofheinz, Kristina Hostáková, Roman Langrehr, Bogdan Ursu

IACR Cryptol. ePrint Arch., 2022

2021

Towards Tight Adaptive Security of Non-Interactive Key Exchange.

Julia Hesse, Dennis Hofheinz, Lisa Kohl, Roman Langrehr

IACR Cryptol. ePrint Arch., 2021

2020

Tightly Secure Hierarchical Identity-Based Encryption.

Roman Langrehr, Jiaxin Pan

J. Cryptol., 2020

Unbounded HIBE with Tight Security.

Roman Langrehr, Jiaxin Pan

IACR Cryptol. ePrint Arch., 2020

Hierarchical Identity-Based Encryption with Tight Multi-Challenge Security.

Roman Langrehr, Jiaxin Pan

IACR Cryptol. ePrint Arch., 2020