Quantum based Cryptography for Secured Data Communication in Mobile Ad-Hoc Network

A Mobile Ad-Hoc Network (MANET) is an infrastructure-less network of mobile devices that are linked without any wire. Every mobile device in MANET moves in any direction. Security is a key problem in MANET of providing the secured communication with routing and packet forwarding process. In order to improve the security during the data communication, Quantum Key Distribution based Secured Data Communication (QKD-SDC) technique is designed in MANET. In QKD-SDC technique, quantum based cryptography used the quantum mechanics for secured data communication. Initially, Quantum based Cryptography performs Quantum Key Generation and Quantum Key distribution process. In Quantum Key Generation process, quantum key is generated and the key is shared to the receiver. With help of the quantum key, the original data gets encrypted as qubits. In Quantum Key distribution process, the qubits are sent to the receiver end through quantum communication channel along with the quantum key. At the receiver end, when the quantum key gets matched with receiver's quantum key, the qubits are decrypted to obtain the original data. When the key is not matched, the qubits get dropped. This in turn helps to improve the secured data communication in quantum communication channel. Experimental evaluation of QKD-SDC technique is carried out with the performance metrics such as data loss rate, throughput and time for secured data delivery. Experimental analysis shows that the QKD-SDC technique is able to reduce the data loss rate and also improves the throughput when compared to the state-of-the-art works.