Supercrypt: a technique for quantum cryptography through simultaneously improving both security level and data rate

摘要

Secured data transmission has always been a matter of great interest and several encryption techniques for secured data transmission have been devised till now in this regard. However, with rapidly developing technology, the available encryption techniques are becoming more prone to attack every day. Focusing this issue, in this paper, we propose a new technique of encryption that will enhance the security level by a significant margin with the help of quantum computing. Additionally, our proposed technique also enhances data transmission rate through exploiting the notion of Superdense Coding. Such simultaneous improvement in both security level and data transmission rate, which we achieve through our proposed technique, is a rare trait for currently available encryption technique. We name our proposed technique SuperCrypt. We elaborate implementation issues pertinent for SuperCrypt such as recycling qubits and re-establishing entanglement. We also implement SuperCrypt in a discrete-event network simulator ns-2 and evaluate the performance of SuperCrypt through analyzing the simulation results. The simulation results demonstrate significant performance improvement through SuperCrypt compared to available classical alternative. Further, we briefly present a more sophisticated and synchronized version of SuperCrypt that we plan to investigate in future.