Design and Improvement of Caesar Cipher
Dhairya Savla, Ruchi Rautela · International Journal for Research in Applied Science and Engineering Technology · 2023
Abstract: Cyber security is the application of technologies, processes and controls to guard systems, networks, programs, devices and data from cyber-attacks. Cryptology is the study of securing Computer systems that allow only sender and receiver to read it.Cryptology comes from Greek word ‘Kryptos’ which means ‘hidden’ and ‘logos’ means ‘to study of’. Even though security is important, numerous applications have been created without considering fundamental points of data security that is confidentiality, authentication, and availability. As we depend more on the internet, security issues and problems will also increase. To prevent alteration or access of data by unauthorized persons, cryptography is required. A methodology is proposed to increase the efficiency of the Caesar cipher which is the simplest cipher. This research introduces a new hybrid secure Caesar cipher by combining the three most important Ciphers (Caesar Cipher, Vigenère Cipher, Polybius Cipher) and Diffie-Hellman technique This hybrid encryption cipher provides better security as compared to normal Caesar ciphers.