49 citations · 65 across the 6 of their papers we have counts for
5 papers · 1 filter
Relay QKD Networks & Bit Transport
Simon J. D. Phoenix, Stephen M. Barnett
We show how it is possible to operate end-to-end relays on a QKD network by treating each relay as a trusted eavesdropper operating an intercept/resend strategy. It is shown that,…
Asynchronous QKD on a Relay Network
S. M. Barnett, S. J. D. Phoenix
We show how QKD on a multi-user, multi-path, network can be used to establish a key between any two end users in an asynchronous fashion using the technique of bit-transport. By a…
Detecting an Eavesdropper in QKD Without Public Bit Comparison
Stephen M. Barnett, Simon J. D. Phoenix
We present a method for determining the presence of an eavesdropper in QKD systems without using any public bit comparison. Alice and Bob use a duplex QKD channel and the bit trans…
Securing a Quantum Key Distribution Network Using Secret Sharing
Stephen M. Barnett, Simon J. D. Phoenix
We present a simple new technique to secure quantum key distribution relay networks using secret sharing. Previous techniques have relied on creating distinct physical paths in ord…
Extending the Reach of QKD Using Relays
Stephen M. Barnett, Simon J. D. Phoenix
One of the obstacles to deployment of QKD solutions has been the distance limitation. Solutions using relays have been proposed but these rely on link-by-link key establishment. We…