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All Journal International Journal of Electrical and Computer Engineering JOURNAL OF INFORMATION SYSTEM MANAGEMENT (JOISM)
Fauzi, Irza Nur
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Computer Science & IT Electrical & Electronics Engineering

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Enhancing system integrity with Merkle tree: efficient hybrid cryptography using RSA and AES in hash chain systems Fauzi, Irza Nur; Farikhin, Farikhin; Jie, Ferry
International Journal of Electrical and Computer Engineering (IJECE) Vol 15, No 6: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v15i6.pp5679-5689

Abstract

An analysis is conducted to address the growing threats of data theft and unauthorized manipulation in digital transactions by integrating \structures within hash chain systems using hybrid cryptography techniques, specifically Rivest-Shamir-Adleman (RSA) and advanced encryption standard (AES) algorithms. This approach leverages AES for efficient symmetric data encryption and RSA for secure key exchanges, while the hash chain framework ensures that each data block is cryptographically linked to its predecessor, reinforcing system integrity. The Merkle tree structure plays a crucial role by allowing precise and rapid detection of unauthorized data changes. Empirical analyses demonstrate notable improvements in both the efficiency of cryptographic processes and the robustness of data validation, underscoring the method’s applicability in high data throughput environments such as educational institutions. This research makes a substantive contribution to information security by offering a sophisticated solution that strengthens data protection practices, ensuring greater resilience against increasingly sophisticated data threats.
RANCANG BANGUN SISTEM INFORMASI PENELITIAN DOSEN DI FAKULTAS TEKNIK UNIVERSITAS DIPONEGORO Fauzi, Irza Nur; Arfan, M.
Journal of Information System Management (JOISM) Vol. 7 No. 2 (2026): Januari
Publisher : Universitas Amikom Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24076/joism.2026v7i2.2154

Abstract

Kegiatan penelitian dosen di perguruan tinggi sering menghadapi kendala dalam pengelolaan data, pelaporan, dan dokumentasi, yang berdampak pada efektivitas dan efisiensi proses penelitian. Untuk mengatasi permasalahan tersebut, pemanfaatan teknologi informasi melalui pengembangan sistem informasi penelitian menjadi solusi strategis. Penelitian ini bertujuan untuk merancang dan membangun sistem informasi penelitian dosen di Fakultas Teknik Universitas Diponegoro. Data dikumpulkan melalui observasi, wawancara, dan studi pustaka. Sistem dikembangkan menggunakan metode waterfall melalui tahapan analisis kebutuhan, perancangan dengan UML, implementasi menggunakan CodeIgniter dan Bootstrap, serta pengujian. Pengujian fungsional dilakukan dengan metode blackbox untuk memastikan seluruh fitur berjalan sesuai spesifikasi, sedangkan pengujian performa menggunakan JMeter menunjukkan sistem mampu merespons dengan baik pada berbagai beban pengguna. Hasil penelitian menunjukkan bahwa sistem mendukung proses penelitian secara digital dan terstruktur, serta diharapkan dapat meningkatkan efisiensi dan transparansi manajemen penelitian.
Co-Authors Arfan, M. Ferry Jie, Ferry Juwanda, Farikhin