Crypto
Cryptography - The basis for security in digitization

 

An important focus of ATHENE's cryptography research is currently on the next generation of cryptography which is to be secure against strong attackers with quantum computers as well. Such powerful quantum computers are expected to be available in the coming years and will make it possible to break many of the currently used cryptographic methods such as RSA and ECC. Against this background, ATHENE deals with the analysis, development and implementation of new types of cryptographic procedures that will both withstand the computing power of a quantum computer and be secure against classic attacks.


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DemoQuanDT

ATHENE researchers participate in the DemoQuanDT project for building secure quantum key distribution between Bonn and Berlin

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Cryptographic Migration & Agility

An open community site for sharing any relevant research, findings, and solutions on PQC migration and cryptographic agility

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Highlight Talk

Prof. Marc Fischlin presents the analysis of NIST's post-quantum signature scheme candidates.

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Publications

A Comprehensive Survey on Post-Quantum TLS
Nouri Alnahawi; Johannes Müller; Jan Oupick\ y; Alexander Wiesmaier
IACR Commun. Cryptol., 2024, Vol.1, p.6

A Deniability Analysis of Signal s Initial Handshake PQXDH
Rune Fiedler; Christian Janson
Proc. Priv. Enhancing Technol., 2024, Vol.2024, p.907-928

The Indifferentiability of the Duplex and Its Practical Applications
Jean Paul Degabriele; Marc Fischlin; J\ er\^ome Govinden
Advances in Cryptology - ASIACRYPT 2023 - 29th International Conference on the Theory and Application of Cryptology and Information Security, Guangzhou, China, December 4-8, 2023, Proceedings, Part VIII, 2023, p.237-269

Complete and Improved FPGA Implementation of Classic McEliece
Po-Jen Chen; Tung Chou; Sanjay Deshpande; Norman Lahr; Ruben Niederhagen; Jakub Szefer; Wen Wang
IACR Cryptol. ePrint Arch., 2022, p.412

Nostradamus Goes Quantum
Barbara Jiabao Benedikt; Marc Fischlin; Moritz Huppert
Advances in Cryptology - ASIACRYPT 2022 - 28th International Conference on the Theory and Application of Cryptology and Information Security, Taipei, Taiwan, December 5-9, 2022, Proceedings, Part III, 2022, p.583-613

Post-quantum Asynchronous Deniable Key Exchange and the Signal Handshake
Jacqueline Brendel; Rune Fiedler; Felix Günther; Christian Janson; Douglas Stebila
Public-Key Cryptography - PKC 2022 - 25th IACR International Conference on Practice and Theory of Public-Key Cryptography, Virtual Event, March 8-11, 2022, Proceedings, Part II, 2022, p.3-34

Mixed Certificate Chains for the Transition to Post-Quantum Authentication in TLS 1.3
Sebastian Paul; Yulia Kuzovkova; Norman Lahr; Ruben Niederhagen
IACR Cryptol. ePrint Arch., 2021, p.1447

Polynomial Multiplication in NTRU Prime Comparison of Optimization Strategies on Cortex-M4
Erdem Alkim; Dean Yun-Li Cheng; Chi-Ming Marvin Chung; Hülya Evkan; Leo Wei-Lun Huang; Vincent Hwang; Ching-Lin Trista Li; Ruben Niederhagen; Cheng-Jhih Shih; Julian Wälde; Bo-Yin Yang
IACR Trans. Cryptogr. Hardw. Embed. Syst., 2021, Vol.2021, p.217-238

DICE harder: a hardware implementation of the device identifier composition engine
Lukas Jäger; Richard Petri
ARES 2020: The 15th International Conference on Availability, Reliability and Security, Virtual Event, Ireland, August 25-28, 2020, 2020, p.1-54

ISA Extensions for Finite Field Arithmetic Accelerating Kyber and NewHope on RISC-V
Erdem Alkim; Hülya Evkan; Norman Lahr; Ruben Niederhagen; Richard Petri
IACR Trans. Cryptogr. Hardw. Embed. Syst., 2020, Vol.2020, p.219-242

Side Channel Information Set Decoding Using Iterative Chunking - Plaintext Recovery from the "Classic McEliece" Hardware Reference Implementation
Norman Lahr; Ruben Niederhagen; Richard Petri; Simona Samardjiska
Advances in Cryptology - ASIACRYPT 2020 - 26th International Conference on the Theory and Application of Cryptology and Information Security, Daejeon, South Korea, December 7-11, 2020, Proceedings, Part I, 2020, p.881-910

"Key Derivation Functions Without a Grain of Salt"
Matilda "Backendal; Sebastian Clermont; Marc Fischlin; Felix" Günther
"Advances in Cryptology — EUROCRYPT 2025", "2025", p.393-426