Quantum key distribution model using quantum gates

Abstract

In this work, a quantum computing based secret key distribution system is proposed. Quantum gates based encryption and decryption circuits are designed and can be used along with conventional encryption schemes such as the Data Encryption Standards (DES), XoR Cipher and Substitution Cipher etc., in the presentation layer. The quantum communication model is implemented and analyzed for both ideal and noisy channel. Using this model if the channel is eaves dropped, the sender and receiver will detect the eavesdropping attempt, the key will be discarded and another key is retransmitted.