Semi-Quantum Conference Key Agreement with GHZ-type states
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866910862578548736 |
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| author | Barreiro, Rúben Krawec, Walter O. Mateus, Paulo Paunković, Nikola Souto, André |
| author_facet | Barreiro, Rúben Krawec, Walter O. Mateus, Paulo Paunković, Nikola Souto, André |
| contents | We propose a semi-quantum conference key agreement (SQCKA) protocol that leverages on GHZ states. We provide a comprehensive security analysis for our protocol that does not rely on a trusted mediator party. We present information-theoretic security proof, addressing collective attacks within the asymptotic limit of infinitely many rounds. This assumption is practical, as participants can monitor and abort the protocol if deviations from expected noise patterns occur. This advancement enhances the feasibility of SQCKA protocols for real-world applications, ensuring strong security without complex network topologies or third-party trust. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_05045 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Semi-Quantum Conference Key Agreement with GHZ-type states Barreiro, Rúben Krawec, Walter O. Mateus, Paulo Paunković, Nikola Souto, André Quantum Physics Cryptography and Security We propose a semi-quantum conference key agreement (SQCKA) protocol that leverages on GHZ states. We provide a comprehensive security analysis for our protocol that does not rely on a trusted mediator party. We present information-theoretic security proof, addressing collective attacks within the asymptotic limit of infinitely many rounds. This assumption is practical, as participants can monitor and abort the protocol if deviations from expected noise patterns occur. This advancement enhances the feasibility of SQCKA protocols for real-world applications, ensuring strong security without complex network topologies or third-party trust. |
| title | Semi-Quantum Conference Key Agreement with GHZ-type states |
| topic | Quantum Physics Cryptography and Security |
| url | https://arxiv.org/abs/2503.05045 |