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Towards Unclonable Cryptography in the Plain Model| title | Towards Unclonable Cryptography in the Plain Model |
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| start_date | 2024/09/17 |
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| schedule | 11h |
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| online | no |
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| location_info | salle 3052 |
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| summary | Properties of quantum mechanics have enabled the emergence of quantum cryptographic protocols achieving important goals which are proven to be impossible classically. Perhaps one of the most striking examples of such protocols are the unclonable primitives, which allows different cryptographic “objects” (such as keys, ciphertexts, signatures, programs, etc.) to be encoded in a quantum state in a manner that permits the “object” to be used but not copied. Recent works have shown how to construct some of these primitives, by using different assumptions and models.
In this talk, I will present some of these unclonable primitives, and discuss how to leverage coset states to construct them. I will subsequently elaborate on my recent efforts in constructing two of these primitives - copy-protection for point functions and unclonable encryption - in the plain model. Finally, and if time allows, I will discuss show how to construct coset-state-based primitives in a semi-quantum way, that is without a quantum channel. |
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| responsibles | Szabó |
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Workflow history| from state (1) | to state | comment | date |
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| submitted | published | | 2024/09/12 14:35 UTC |
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