An Improvement of Protocol Binary in Reconciliation of Quantum Key Distribution

As the quantum channel being susceptible to be interfered by noise, the reconciliation in a quantum communication is so important. Though its security is high, the efficiency of protocol binary is low because it needs to repeat the algorithm many times for the even-digit mistakes not being able to be founded. This article will focus on an improvement of protocol binary with the Message-digest Algorithm 5 (MD5) replacing parity check and the advantage is that all kinds of mistakes can be found while the security keeps still high. And then its performance will be contrasted with the protocol binary with parity check by the self-designed simulation platform. The result shows that protocol binary with MD5 can improve efficiency by up to around 45%.