A Detailed Comparative Study and Performance Analysis of Standard Cryptographic Algorithms

Abstract

Nowadays the most important issue we face during data transmission and exchanging of data is security of data. The cryptographic algorithms play very significant role to secure data. By using different algorithms, it improves security of data by making data unreadable, only the authenticate users can read data after decryption using keys. All algorithms perform same work, but consume different volume of computing properties such as time of CPU, memory utilization, throughput time, encryption and decryption time, simulation etc. Also different algorithms use various size of keys, size of block and cipher type. So we need to compare the cryptographic algorithms to choose the best one. In this paper, we have done the evaluation of both block cipher (AES, DES, 3DES, Blowfish) as well as stream cipher (SALSA20) cryptographic algorithms is shown by taking different size of audio files. This comparison of different algorithms has been conducted to evaluate parameters such as encryption/decryption time, throughput time, memory utilization, scalability and ratio. Simulation results are given to demonstrate the efficiency of each. This research contributes to identify state of the art cryptographic technique.