Analisis dan Implementasi I/O Paralel Pada Algoritme Enkripsi Advanced Encryption Standard (AES)

Abstract

Complexity of AES encryption process is O(n). In previous research, parallel computation has been conducted on AES to decrease execution time, however it was not cost-optimal because the average efficiency value was below 0.7. In this research, parallel I/O computing was conducted in order to improve the speedup and the efficiency compared with AES algorithm that using sequential I/O. In this research, two computers are used with the specification: Intel Dual Core (2 CPUs) @ 2.3 GHz, AMD 16-3400M APU @ 1.4 GHz (4 CPUs), each computer has 2 GB of memory. The highest efficiency is achieved by using parallel I/O is 0.95, that occured when three processes are generated using two computers, The highest efficiency is achieved by using sequential I/O is 0.8, that occured when two processes are generated using two computers.