Cryptanalysis of SDES Using Modified Version of Binary Particle Swarm Optimization

摘要

Nowadays, information security is based on ciphers and cryptographic systems. What evaluates the quality of such security measures is cryptanalysis. This paper presents a new cryptanalysis attack aimed at a ciphertext generated with the use of the SDES (Simplified Data Encryption Standard). The attack was carried out with a modified version of the BPSO (Binary Particle Swarm Optimization) algorithm. A well-adjusted version of this method can have a positive effect on the quality of the results obtained in a given period of time.