Attack on the simple substitution ciphers using particle swarm optimization

Abstract EN

This paper considers a new approach to cryptanalysis based on simulation of behavior of flocks of birds and schools of fish called Particle Swarm Optimization (PSO).

It is shown that such algorithm could be used to break the key for a simple substitution cipher.

This paper presents a proposed 2-opt PSO algorithm to enhance the efficiency of PSO algorithm on attacking simple substitution ciphers.