Bintang Kusuma Ilham, Muhammad Fajar Sidiq, Muhammad Agung Nugroho, Trihastuti Yuniati

IMPLEMENTASI GABUNGAN AES-256 DAN RSA DENGAN METODE LSB UNTUK KEAMANAN DATA

Introduction

Implementasi gabungan aes-256 dan rsa dengan metode lsb untuk keamanan data. Kembangkan sistem keamanan data canggih gabungkan enkripsi AES-256 & RSA dengan steganografi LSB pada gambar PNG. Efektif amankan teks, performa tinggi, & pulihkan pesan utuh.

Abstract

Penelitian ini mengembangkan sistem keamanan data yang menggabungkan enkripsi ganda (AES-256 CBC dan RSA-2048) dengan steganografi Least Significant Bit (LSB) pada gambar PNG. Dibangun menggunakan Python dengan Tkinter, sistem ini menangani enkripsi/penyisipan, ekstraksi/dekripsi, dan evaluasi kinerja. Pengujian pada lima gambar PNG dengan ukuran teks bervariasi menunjukkan penyembunyian data yang berhasil. Rata-rata MSE adalah 0,0263730426 dan PSNR 64,3427895234 dB. Pesan asli berhasil dipulihkan sepenuhnya. Efisiensi sistem ditunjukkan oleh rata-rata waktu eksekusi 92,376 ms untuk enkripsi dan 370,392 ms untuk dekripsi, dengan penggunaan memori yang rendah. Kapasitas steganografi mendekati batas teoretis. Sistem ini terbukti efektif dalam mengamankan data teks dan memenuhi semua tujuan penelitian.

Review

This study presents a robust data security system integrating a dual encryption scheme (AES-256 CBC and RSA-2048) with Least Significant Bit (LSB) steganography on PNG images. The research successfully develops a Python-based system using Tkinter for encryption/data embedding, extraction/decryption, and performance evaluation. The abstract effectively conveys the core contribution of combining strong cryptographic primitives with an established steganographic method to enhance data confidentiality and imperceptibility. The presented results indicate successful data hiding across varying text sizes and complete recovery of the original messages, affirming the system's functional integrity. The technical evaluation provides compelling evidence of the system's effectiveness and efficiency. The reported average MSE of 0.0263730426 and PSNR of 64.3427895234 dB are excellent indicators that the image quality degradation due to steganography is minimal, making the embedded data highly imperceptible. Furthermore, the average execution times (92.376 ms for encryption/embedding and 370.392 ms for extraction/decryption) demonstrate practical efficiency, especially considering the dual encryption layers and steganographic processes involved. The claim of low memory usage and steganographic capacity approaching theoretical limits further underscores the system's optimized design, positioning it as a promising solution for secure data transmission. While the abstract clearly highlights the system's achievements, it leaves some details to be desired for a comprehensive review. For instance, the specific implementation details of the LSB method (e.g., which bit planes are utilized, whether it's adaptive) could offer deeper insights into its robustness against steganalysis. Similarly, a brief mention of how RSA key management is handled (e.g., public key distribution) would enhance the cryptographic security discussion. Future work could explore the system's resilience against various steganalysis attacks, compare its performance and security against other hybrid encryption or steganography techniques, and investigate its scalability for larger data payloads beyond text, potentially incorporating multimedia files. Despite these minor points for potential expansion, the paper presents a well-executed and effective system that successfully meets its stated research objectives.

Full Text

Comments

You need to be logged in to post a comment.