This chapter provides an overview of cryptography and DNA computing. It presents all the
basics of cryptography and discusses background studies of DNA and the applications of
DNA computing in the field of cryptography. In the 1970s, all cryptosystems used symmetric
key encryption. Asymmetric key encryption is also known as public key cryptography. Key
management is one of the important aspects of any cryptosystem. Both steganography and
cryptography have common aim but use different approaches. In 1994, DNA was first …

Corporate profiles within the IT industry have a significant demand and a formidable
problem when it comes to secure data transfer. Malicious users and attackers are
proliferating at an alarming rate. An efficient security protocol must protect the data
communication process in all circumstances and not leave a trapdoor for malicious users.
Nowadays, researchers are considering deoxyribonucleic acid (DNA) computing as an
intermediate for ultra‐scale computation. One of the potential applications of DNA is to hide …