Paper 2020/594

LESS is More: Code-Based Signatures without Syndromes

Jean-Francois Biasse, Giacomo Micheli, Edoardo Persichetti, and Paolo Santini

Abstract

Devising efficient and secure signature schemes based on coding theory is still considered a challenge by the cryptographic community. In this paper, we construct a signature scheme by exploring a new approach to the area. To do this, we design a zero-knowledge identification scheme, which we then render static via standard means (e.g. Fiat-Shamir). We show that practical instances of our protocol have the potential to outperform the state of the art on code-based signatures, achieving small data sizes with a low computational complexity.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. AFRICACRYPT 2020
Keywords
Code-BasedSignatureZero-KnowledgeCode Equivalence
Contact author(s)
epersichetti @ fau edu
History
2020-05-22: received
Short URL
https://ia.cr/2020/594
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2020/594,
      author = {Jean-Francois Biasse and Giacomo Micheli and Edoardo Persichetti and Paolo Santini},
      title = {LESS is More: Code-Based Signatures without Syndromes},
      howpublished = {Cryptology ePrint Archive, Paper 2020/594},
      year = {2020},
      note = {\url{https://eprint.iacr.org/2020/594}},
      url = {https://eprint.iacr.org/2020/594}
}
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