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Security and Privacy in Communication Networks. 17th EAI International Conference, SecureComm 2021, Virtual Event, September 6–9, 2021, Proceedings, Part II

Research Article

Hardware Deployment of Hybrid PQC: SIKE+ECDH

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  • @INPROCEEDINGS{10.1007/978-3-030-90022-9_26,
        author={Reza Azarderakhsh and Rami Elkhatib and Brian Koziel and Brandon Langenberg},
        title={Hardware Deployment of Hybrid PQC: SIKE+ECDH},
        proceedings={Security and Privacy in Communication Networks. 17th EAI International Conference, SecureComm 2021, Virtual Event, September 6--9, 2021, Proceedings, Part II},
        proceedings_a={SECURECOMM PART 2},
        year={2021},
        month={11},
        keywords={Hybrid cryptosystem Isogeny-based cryptography Elliptic curve cryptography Field-programmable gate array},
        doi={10.1007/978-3-030-90022-9_26}
    }
    
  • Reza Azarderakhsh
    Rami Elkhatib
    Brian Koziel
    Brandon Langenberg
    Year: 2021
    Hardware Deployment of Hybrid PQC: SIKE+ECDH
    SECURECOMM PART 2
    Springer
    DOI: 10.1007/978-3-030-90022-9_26
Reza Azarderakhsh1,*, Rami Elkhatib1, Brian Koziel1, Brandon Langenberg1
  • 1: PQSecure Technologies LLC
*Contact email: razarder@pqsecurity.com

Abstract

In this work, we present a small architecture for quantum-safe hybrid key exchange targeting ECDH and SIKE. This is the first known hardware implementation of ECDH/SIKE-based hybrid key exchange in the literature. We propose new ECDH and EdDSA parameter sets defined over the SIKE primes. As a proof-of-concept, we evaluate SIKEX434, a hybrid PQC scheme composed of SIKEp434 and our proposed ECDH scheme X434 over a new, low-footprint architecture. Both schemes utilize the same 434-bit prime to save area. With only 1663 slices on a small Artix-7 device, our SIKE architecture can compute an entire hybrid key exchange in 320 ms. This is the smallest SIKE architecture in the literature. The hybrid SIKEX434 adds approximately 16% communication overhead and 10% latency overhead over SIKEp434. The additional overhead to support multiple primes indicates the need for new standardized ECC parameters for area-efficient designs in the future.

Keywords
Hybrid cryptosystem Isogeny-based cryptography Elliptic curve cryptography Field-programmable gate array
Published
2021-11-04
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-90022-9_26
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