A novel symmetric key encryption technique using Cellular Automata

A Cellular Automaton is one of the most engrossing fields of studies. At the present digital world where almost every communication is being done via internet, requirement of security and privacy of information is must. For securing big or small data over internet, cryptographic techniques are essential. Usage of cellular automata characteristics in the field of cryptography is still not much explored. Here, the paper presents a symmetric key cryptographic technique of block cipher using cellular automata (CAs) rules. Proposed methodology has been implemented in C. This cryptographic technique uses Non- complemented cellular automata rules and hybrid CA rule vector to form a group cellular automata that would be used to encrypt and decrypt the data.