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Design and Implementation of a Quantum-Assisted Digital Signature

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Publicado en:Cryptography vol. 9, no. 1 (2025), p. 11
Autor principal: García-Cid, Marta Irene
Otros Autores: Martín, Rodrigo, Domingo, David, Martín, Vicente, Ortiz, Laura
Publicado:
MDPI AG
Materias:
National Institute of Standards & Technology
Cryptography
Authorship
Quantum computing
Parameterization
Quantum cryptography
Algorithms
Digital signatures
Protocol
Mathematical problems
Hash based algorithms
Acceso en línea:Citation/Abstract
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Resumen:We propose a new quantum-assisted digital signature (Q-DS) protocol based on the composite of truly random symmetric keys generated by quantum key distribution with secure standardized hash functions, which allows for high parameterization to provide different security levels. The protocol is demonstrated to be secure, it is implemented, and its performance is tested for several system configurations. A comparative evaluation of the results obtained for Q-DS is carried out with 6 pre-quantum and 12 post-quantum digital signature algorithms. The results show that the Q-DS overperforms during the signature generation and verification processes, while its performance is affected by the key generation process. However, using more efficient QKD devices, this process can be highly improved, making the Q-DS protocol comparable to the most efficient post-quantum solution, i.e., CRYSTALS-Dilithium.
ISSN:2410-387X
DOI:10.3390/cryptography9010011
Fuente:Advanced Technologies & Aerospace Database