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INDONESIA
JURNAL INSTEK (Informatika Sains dan Teknologi)
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 25411179     EISSN : 25811711     DOI : https://doi.org/10.24252/instek.v6i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering
The Scope topics include, but are not limited to : Agent System and Multi-Agent Systems Analysis & Design of Information System Artificial Intelligence Big Data and Data Mining Cloud & Grid Computing Computer Vision Cryptography Decision Support System DNA Computing E-Government E-Business E-Learning Embedded System Enterprise System Green software development Green computing Green Information Technology Human Computer Interaction Image Processing & Computer Vision Informatics Theory Information System IT for Education IT for Industry IT for Chemical Mechatronics Mobile Computing & Applications Natural Language Processing Network & Data Communications Open Source System Semantic Web Social Networking & Application Soft Computing Software Engineering Software Entrepreneurship Web Engineering Wireless Communication Mikrokontroller elektronic and telecomonunication
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 352 Documents
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ANALISIS KOMPARATIF ALGORITMA AES, BLOWFISH DAN PENDEKATAN HYBRID UNTUK MENJAGA KERAHASIAAN DOKUMEN PENGADILAN AGAMA Hasda Nuril Mala; Eko Riyanto; Sri Lestari Ratna Anugraheni; Eka Ardhianto; Aji Supriyanto
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.67053

Abstract

Keamanan dokumen digital menjadi aspek penting dalam menjaga kerahasiaan informasi, khususnya pada dokumen berbasis PDF. Penelitian ini bertujuan untuk menganalisis dan membandingkan performa algoritma kriptografi AES, Blowfish dan metode hybrid yang merupakan gabungan antara AES dan Blowfish dalam mengamankan dokumen yang ada di lingkungan pengadilan agama. Pada penelitan ini, menggunakan 6 dokumen dengan kisaran ukuran 261 KB - 1,7 MB serta proses enkripsi dan dekripsi dilakukan sebanyak 5 kali iterasi untuk memperoleh hasil yang konsisten. Adapun parameter evaluasi yang digunakan meliputi waktu eksekusi enkripsi dan dekripsi, entropi dan avalanche effect. Hasil penelitian menunjukkan bahwa AES memiliki performa terbaik dalam segi kecepatan dengan rata-rata waktu enkripsi selama 0,078 ms dan dekripsi selama 0,052 ms, yang merupakan nilai terendah dibandingkan Blowfish dan hybrid yang rata-rata waktu enkripsinya mencapai 0,554 ms. Sedangkan dari segi keamanan ketiga pendekatan tersebut menghasilkan nilai entropi yang tinggi dan relatif sama. Namun, pada hasil avalanche effect, hybrid menghasilkan nilai tertinggi mencapai 0,153, lebih unggul dibandingkan AES dan Blowfish. Dengan demikian, AES lebih unggul dalam efisiensi waktu, sedangkan hybrid lebih unggul dalam aspek keamanan.
DEVELOPMENT AND QUALITY VALIDATION OF A WEB-BASED GOODS ORDERING SYSTEM FOR SMALL AND MEDIUM ENTERPRISES USING AGILE METHOD AND ISO/IEC 25010
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.65939

Abstract

Digital transformation in Small and Medium Enterprises (SMEs) requires integrated transaction management systems supported by measurable software quality standards. Manual goods ordering processes in SME operations frequently cause data inconsistencies, calculation errors, and reporting delays. This study aims to develop a web-based goods ordering information system for SME practitioners using a sprint-based Agile methodology and to conduct a quality validation based on the ISO/IEC 25010 model. The system was developed through four iterative sprint cycles over eight weeks with continuous stakeholder feedback. Software quality evaluation covered all eight ISO/IEC 25010 characteristics using measurable instruments. Functional testing across 40 scenarios achieved a 95% success rate. Usability was assessed using the System Usability Scale (SUS) with 30 respondents, yielding a score of 82.3 (Excellent category). Performance efficiency testing showed an average response time below two seconds under up to 50 concurrent users. This study is limited to testing within a controlled local server environment and portability evaluation restricted to two operating systems. The results conclude that integrating Agile development with ISO/IEC 25010 evaluation produces an information system that meets the technical specifications and operational requirements to support digital transaction management in the SME sector.

Page 36 of 36 | Total Record : 352

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