A DNA Cryptosystem Using Diffie–Hellman Key Exchange

DNA cryptography is a method of concealing information in the form of DNA sequence. It is growing in popularity as a result of its quicker performance and low storage and power requirements. Despite its advantages, employing DNA cryptography purely is difficult due to a lack of secure theory and its easily implementable techniques. This paper presents a cutting-edge solution that uses bioinformatics and Diffie–Hellman Key exchange to protect the data during communications, overcoming the difficulties associated with employing solely DNA cryptography. Our cryptosystem suggests a method for encrypting and decrypting data that makes use of the entire Central Dogma of Molecular Biology (CDMB), the process by which DNA is converted into proteins. The Diffie–Hellman Key exchange approach is utilized for key generation in this algorithm, which also includes a few extra modifications for additional strength. Comparing our proposed bio-inspired cryptosystem to current systems, it demonstrates potential cryptographic efficiency, even on big data sets. In addition, it creates a very robust and quick-to-generate cryptosystem that protects the data from numerous online threats.