Questions tagged [key-distribution]
For questions about quantum key distribution (QKD). It is a secure communication method which implements a cryptographic protocol involving components of quantum mechanics. (Wikipedia) In case it's also a question about quantum-cryptography, use the [cryptography] tag along with this.
3
questions
22
votes
3
answers
2k
views
Advantage of quantum key distribution over post-quantum cryptography
Post-quantum cryptography like lattice-based cryptography is designed to be secure even if quantum computers are available. It resembles currently employed encryptions, but is based on problems which ...
- 2,482
9
votes
0
answers
340
views
What authentication protocol to use for BB84 and other QKD protocols?
Just like other classical and quantum key distribution protocols, BB84 is vulnerable to "man"-in-the-middle attacks, where Eve pretends to be Bob to Alice, and Eve pretends to be Alice to ...
- 303
2
votes
2
answers
247
views
Why does entanglement of 3 qubits break this?
Another user asked about the Ekert Quantum Key Distribution protocol: Alice and Bob each randomly choose one of three bases separated by $120^{\circ} $ in which to measure, and then later compare the ...
- 673