Common Contracts
1 similar Conference Key Agreement contracts
Fully device independent Conference Key AgreementConference Key Agreement • November 21st, 2020
Quantum communication allows cryptographic security that is provably impossible to obtain using any classical means. Probably the most famous example of a quantum advantage is quantum key distribution (QKD) [1, 2], which allows two parties Alice and Bob to exchange an encryption key whose security is guaranteed even if the adversary has an arbitrarily powerful quantum computer. What’s more, properties of entanglement lead to the remarkable feature that security is sometimes possible even if the quantum devices used to execute the protocol are largely untrusted. Specifically, the notion of device independent (DI) security [3, 4] models quantum devices as black boxes in which we may only choose measurement settings and observe measurement outcomes. Yet, the quantum state and measurements employed by such boxes are unknown, and may even be prepared arbitrarily by the adversary.
