Quantum key distribution between<i>N</i>partners: Optimal eavesdropping and Bell’s inequalities
Quantum key distribution between<i>N</i>partners: Optimal eavesdropping and Bell’s inequalities
Quantum secret-sharing protocols involving N partners (NQSS) are key distribution protocols in which Alice encodes her key into $N-1$ qubits, in such a way that all the other partners must cooperate in order to retrieve the key. On these protocols, several eavesdropping scenarios are possible: some partners may want to …