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All Journal Jurnal Sistem Informasi Komputer dan Teknologi Informasi
M. Husni Mubarok
Universitas Serelo Lahat
Computer Science & IT

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ANALISIS PERFORMA AES-128, AES-192, DAN AES-256 PADA NODE.JS M. Husni Mubarok; Agustian prakarsya; Sri Rahayu
SISKOMTI: Jurnal Sistem Informasi Komputer dan Teknologi Informasi Vol. 8 No. 2 (2026): Agustus 2026
Publisher : Universitas Lembah Dempo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54342/wym48457

Abstract

This study aims to analyze differences in AES encryption performance across key lengths of 128, 192, and 256 bits within a Node.js environment. Experiments were conducted on a laptop equipped with an Intel Core i5-12500H processor and Node.js version 24.15.0. A controlled benchmarking method was employed, involving the encryption of synthetic files ranging from 1 KB to 10 MB over 10 iterations per configuration. Test results indicate that AES-256 incurs a time overhead of approximately 25% compared to AES-128 for small files; however, this difference becomes negligible—or even negative—for large files. This phenomenon is attributed to AES-NI hardware optimization in modern processors. The study offers practical recommendations to help developers select the AES configuration best suited to their application requirements.
Co-Authors Agustian Prakarsya Sri Rahayu