Lucas Hanouz - Security of a secret sharing protocol on the Qline

Security of a secret sharing protocol on the Qline

Ce séminaire, donné par Lucas Hanouz, aura lieu le 20 June 2025, à 14:0. Il aura lieu en salle Not specified.

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Résumé

Secret sharing is a fundamental primitive in cryptography, and it can be achieved even with perfect security. However, the distribution of shares requires computational assumptions, which can compromise the overall security of the protocol. While traditional Quantum Key Distribution (QKD) can maintain security, its widespread deployment in general networks would incur prohibitive costs. In this work, we present a quantum protocol for distributing additive secret sharing of 0, which we prove to be composably secure within the