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All Journal JIKUM: Jurnal Ilmu Komputer
Sohaimi, Soty
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Computer Science & IT Decision Sciences, Operations Research & Management

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Implementasi Steganografi Audio dan Gambar untuk Pengamanan Informasi Harahap, Faizah Amirah; Hasibuan, Nadiyah Haaniyah; Asthalariq, Luthan; Sohaimi, Soty; Valzoe, Dhimas Hadi
JIKUM: Jurnal Ilmu Komputer Vol. 2 No. 1 (2026): JIKUM: Jurnal Ilmu Komputer, Mei 2026
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jikum.v2i1.148

Abstract

The rapid advancement of information technology has increased the risk of cyberattacks on sensitive data, creating a strong demand for advanced security techniques. Steganography complements cryptography by concealing messages within digital media so that their existence is not easily detected by unauthorized parties. This study focuses on hiding text messages in audio and image files to support secure information exchange. The research aims to implement audio and image steganography using the Least Significant Bit (LSB) method. Text messages are embedded into WAV audio files and PNG image files while maintaining media quality, minimizing detectability, and preserving file size efficiency. An experimental prototyping methodology was applied, involving system design, implementation, and testing. The LSB technique embeds messages by modifying the least significant bits of audio samples or image pixels. Data were obtained through literature review and experimental embedding and extraction procedures. The results show that text messages were successfully embedded and extracted from both audio and image files without noticeable visual or auditory degradation. File sizes remained largely unchanged, and the stego media was indistinguishable from the original as long as no compression or manipulation occurred. In conclusion, LSB-based steganography is an effective approach for information security and future enhancement research.
Implementasi Pengamanan Data Menggunakan Kombinasi Algoritma Kriptografi AES-256 dan Teknik Steganografi End-of-File (EOF) Pada Media Citra Digital Harahap, Jakbar Ali; Aulia, Muhammad; Alfarisi, Muhammad Rasyya; Sohaimi, Soty
JIKUM: Jurnal Ilmu Komputer Vol. 2 No. 1 (2026): JIKUM: Jurnal Ilmu Komputer, Mei 2026
Publisher : LEMBAGA KAJIAN PEMBANGUNAN PERTANIAN DAN LINGKUNGAN (LKPPL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62671/jikum.v2i1.188

Abstract

In the contemporary digital landscape, the security and confidentiality of information exchange have emerged as paramount concerns due to the increasing sophistication of cyber threats. This study proposes an integrated security framework through the development of "PrivaSel," a hybrid application that synergizes advanced cryptography and steganography to achieve dual-layer protection. The system employs the Advanced Encryption Standard (AES) with a robust 256-bit key length, implemented in Cipher Block Chaining (CBC) mode to ensure high-level data confidentiality and resistance against frequency analysis attacks. Key derivation is further strengthened using the PBKDF2 algorithm with 100,000 iterations and a random salt to mitigate brute-force vulnerabilities. For the covert layer, the system utilizes the End-of-File (EOF) steganography technique, which embeds encrypted payloads into diverse container media including images and videos without altering the spatial pixel data. Developed using a Python-based FastAPI backend and a responsive HTML5/Tailwind CSS frontend, the application facilitates seamless asynchronous processing. Empirical testing through histogram analysis confirms that the EOF method maintains absolute visual integrity, yielding a Mean Squared Error (MSE) of 0.00 and an infinite Peak Signal-to-Noise Ratio (PSNR). The results demonstrate that while the file size increases linearly relative to the payload and metadata overhead, the hidden information remains imperceptible to statistical analysis and can be flawlessly retrieved only with the authorized password, providing a reliable solution for secure multi-file data transmission.
Co-Authors Alfarisi, Muhammad Rasyya Asthalariq, Luthan Aulia, Muhammad Harahap, Faizah Amirah Harahap, Jakbar Ali Hasibuan, Nadiyah Haaniyah Valzoe, Dhimas Hadi