Transmitting Secure Data Using Quantum Circuit through Quantum Key Distribution (QKD) Protocol

Tan, Choo Hee (2023) Transmitting Secure Data Using Quantum Circuit through Quantum Key Distribution (QKD) Protocol. Final Year Project (Bachelor), Tunku Abdul Rahman University of Management and Technology.

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Abstract

Quantum key distribution (QKD) is a technology that uses the principles of quantum mechanics to create a secure communication channel between two parties. The security of QKD is based on the fundamental properties of quantum mechanics, which make it impossible to intercept or eavesdrop on a message without being detected [1]. This method is suitable to be applied in the banking system to ensure that their communications with other financial institutions, regulators, and customers are protected from interception and tampering. This research proposed BB84, phase encoded BB84 and decoy state model to encrypt and decrypt the information in binary format with H gate and X gate. In BB84 protocol, H gate and X gate will be applied while T gate and S gate will be applied in phase encoded BB84 to encrypt and decrypt the data. With decoy state model, 20 percent of probability of adding extra photon number in the data. The error percentage obtained of BB84 and phase encoded BB84 are lower than the decoy state model.