DOAJ Open Access 2025

Generalized Quantum-Assisted Digital Signature

Alberto Tarable Rudi Paolo Paganelli Elisabetta Storelli Alberto Gatto Marco Ferrari

Abstrak

This article introduces generalized quantum-assisted digital signature (GQaDS), an improved version of a recently proposed scheme whose information-theoretic security is inherited by adopting quantum key distribution keys for digital signature purposes. Its security against forging is computed considering a trial-and-error approach taken by the malicious forger, and GQaDS parameters are optimized via an analytical approach balancing between forgery and repudiation probabilities. The hash functions of the previous implementation are replaced with Carter–Wegman message authentication codes, strengthening the scheme security and reducing the signature length. For particular scenarios where the second verifier has a safe reputation, a simplified version of GQaDS, namely deterministic GQaDS, can further reduce the required signature length, keeping the desired security strength.

Penulis (5)

A

Alberto Tarable

R

Rudi Paolo Paganelli

E

Elisabetta Storelli

A

Alberto Gatto

M

Marco Ferrari

Format Sitasi

Tarable, A., Paganelli, R.P., Storelli, E., Gatto, A., Ferrari, M. (2025). Generalized Quantum-Assisted Digital Signature. https://doi.org/10.1109/TQE.2025.3595703

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Informasi Jurnal
Tahun Terbit
2025
Sumber Database
DOAJ
DOI
10.1109/TQE.2025.3595703
Akses
Open Access ✓