PROTOCOL EFFICIENCY USING MULTIPLE LEVEL ENCODING IN QUANTUM SECURE DIRECT COMMUNICATION PROTOCOL
DOI:
https://doi.org/10.15282/ijsecs.9.2.2023.4.0115Keywords:
QSDC, Multiphoton Technique, Encoding Level, Quantum Cryptography, Single stageAbstract
One of the objectives of information security is to maintain the confidentiality and integrity of the information by ensuring that information is transferred in a way that is secure from any listener or attacker. There was no comparison experiment conducted in earlier studies regarding different level encoding performance towards multiphoton technique. Multiphoton technique in the earlier study is particular to transmission time for data transfer encoding and extra time for polarizers to change polarisation angles, both of which contribute to longer transmission times. With four different size of qubits, the three simulation experiments are carried out using Python coding with 2,4 and 8 levels of encoding. Experiment results demonstrate that the most efficient average photon transmission derived from 18 qubit size ranges from 98.71% to 98.73% depending on encoding level. With 18 qubit size, the four-level encoding result has the highest average efficiency, followed by the eight-level and two-level encodings, respectively. 4-level encoding exhibits the highest average photon efficiency between 2 and 8 level encoding.
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