Publication detail

Hybrid Keys in Practice: Combining Classical, Quantum and Post-Quantum Cryptography

RICCI, S. DOBIÁŠ, P. MALINA, L. HAJNÝ, J. JEDLIČKA, P.

Original Title

Hybrid Keys in Practice: Combining Classical, Quantum and Post-Quantum Cryptography

Type

journal article in Web of Science

Language

English

Original Abstract

Currently, with the threat of quantum computer attacks, the idea of combining several same-type primitives has reemerged. This is also the case for cryptographic keys where a hybrid quantum key exchange combination allows for preserving the security guarantees of pre-quantum schemes and achieving quantum resistance of post-quantum schemes. In this article, we present a concrete 3-key combiner system implemented on a Field Programmable Gate Arrays (FPGA) platform. Our system involves a pre-quantum Key EXchange scheme (KEX), a post-quantum key encapsulation mechanism, and a Quantum Key Distribution (QKD) algorithm. The proposed 3-key combiner is proven to be secure in the quantum standard model and it is INDistinguishable under a Chosen-Ciphertext Attack (IND-CCA). Our combiner can run in small FPGA platforms due to its relatively low resources usage. In particular, the key combiner without QKD is able to output up to 1 624 keys per second and the key combiner with QKD is able to output up to 9.2 keys per second.

Keywords

Authentication;Cryptography;Key Establishment;Post-Quantum Cryptography;Security;Quantum Key Distribution (QKD);Dual-PRF;Key Combiner

Authors

RICCI, S.; DOBIÁŠ, P.; MALINA, L.; HAJNÝ, J.; JEDLIČKA, P.

Released

10. 2. 2024

Publisher

IEEE

ISBN

2169-3536

Periodical

IEEE Access

Year of study

12

Number

1

State

United States of America

Pages from

23206

Pages to

23219

Pages count

15

URL

https://ieeexplore.ieee.org/document/10430098

Full text in the Digital Library

http://hdl.handle.net/11012/245502

BibTex

@article{BUT188009,
  author="Sara {Ricci} and Patrik {Dobiáš} and Lukáš {Malina} and Jan {Hajný} and Petr {Jedlička}",
  title="Hybrid Keys in Practice: Combining Classical, Quantum and Post-Quantum Cryptography",
  journal="IEEE Access",
  year="2024",
  volume="12",
  number="1",
  pages="23206--23219",
  doi="10.1109/ACCESS.2024.3364520",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/10430098"
}