Cryptography is the art of secret writing. The primary objective of cryptography is to protect the authenticity, integrity, and confidentiality of the information exchanged.
Network data security is a significant concern in the quantum era. The challenge faced by quantum technology is to integrate itself seamlessly into the present cryptographic infrastructure. Today’s encryption algorithms need a revisit in light of quantum computing threats.
In this paper, we practically demonstrate the integration of a Differential Phase Shift Quantum Key Distribution (DPS QKD) protocol with a commercial router cum encryptor.
The randomness of the final secure keys generated from QKD in the NIST test suite is validated, and it has passed all 15 tests. The QKD system was integrated with a commercial router cum encryptor and data was successfully transmitted from a source router to a destination router.
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