COMPARATIVE STUDY OF SYMMETRIC CRYPTOGRAPHIC ALGORITHMS

This article represents an equitable comparison between the most popular and frequently used algorithms in the data encryption area. There are some main characteristics that distinguish encryption algorithms: elapsed time and efficiency of data encryption and ability to protect data from various attacks. This document presents the comparison between the most common symmetric encryption algorithms: DES, 3DES, Blowfish, and AES. The comparison was done by processing data blocks of different sizes to estimate the encryption and decryption speed. Since our main task is to perform these algorithms with different settings, the presented comparison takes into account the behavior and performance of the algorithm when using different data loads. This paper also analyzes parameters such as flexibility, key extension option, possible attacks and security vulnerability of the algorithms, which determines the efficiency of the cryptosystem.

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