Paper 2025/707
Post Quantum Cryptography (PQC) Signatures Without Trapdoors
, Edinburgh Napier UniversityAbstract
Some of our current public key methods use a trap door to implement digital signature methods. This includes the RSA method, which uses Fermat's little theorem to support the creation and verification of a digital signature. The problem with a back-door is that the actual trap-door method could, in the end, be discovered. With the rise of PQC (Post Quantum Cryptography), we will see a range of methods that will not use trap doors and provide stronger proof of security. In this case, we use hash-based signatures (as used with SPHINCS+) and Fiat Shamir signatures using Zero Knowledge Proofs (as used with Dilithium).
Metadata
- Available format(s)
-
PDF
- Category
- Applications
- Publication info
- Preprint.
- Keywords
- SPHINCS+Hash-based SignatureZero Knowledge ProofFiat-ShamirSchnorr Identity
- Contact author(s)
- b buchanan @ napier ac uk
- History
- 2025-04-19: approved
- 2025-04-18: received
- See all versions
- Short URL
- https://ia.cr/2025/707
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2025/707,
author = {William J Buchanan},
title = {Post Quantum Cryptography ({PQC}) Signatures Without Trapdoors},
howpublished = {Cryptology {ePrint} Archive, Paper 2025/707},
year = {2025},
url = {https://eprint.iacr.org/2025/707}
}
