Breaking Barriers in Conventional Cryptography by Integrating with Quantum Key Distribution

Security techniques based on conventional cryptography assume keys are disseminated prior to secure communications in traditional security mechanisms. The essential function of transmitting and sharing a secret key between two entities is the safe key management technique, which is the most important components to be concerned about when incorporating cryptographic activities into any system. If the key management procedures are ineffective, the system will be vulnerable to vulnerabilities and potentially lethal outsider attacks. Quantum cryptography is a method of securely encrypting information sent between parties while also detecting intruders attempting to listen in on the discussion. Quantum cryptography holds promise as a solution to these and other issues. In this paper,we discuss the Quantum key distribution (BB84 protocol) and how when integrated with conventional cryptography algorithms it increases security in data transmission to a remarkably high level. We also compare the cryptography algorithms for different file sizes and measure their performance by calculating the Encryption,decryption,throughput and Avalanche effect of the algorithms with and without QKD. The elapsed time of the conventional algorithm with QKD achieve 56.8%, 58.6% and 54.3% less time than AES, 3DES and Blowfish respectively.