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All Journal International Journal of Electrical and Computer Engineering Techno.Com: Jurnal Teknologi Informasi Jurnal Teknologi Speed - Sentra Penelitian Engineering dan Edukasi Jurnal Teknologi Informasi dan Ilmu Komputer Telematika Proceedings Konferensi Nasional Sistem dan Informatika (KNS&I) CESS (Journal of Computer Engineering, System and Science) Jurnal Inspiration JOIV : International Journal on Informatics Visualization Creative Information Technology Journal SISFOTENIKA Bianglala Informatika : Jurnal Komputer dan Informatika Akademi Bina Sarana Informatika Yogyakarta Insect (Informatics and Security) : Jurnal Teknik Informatika Jurnal Eksplora Informatika JURNAL REKAYASA TEKNOLOGI INFORMASI Jurnal Komtika (Komputasi dan Informatika) RESEARCH : Computer, Information System & Technology Management DoubleClick : Journal of Computer and Information Technology JurTI (JURNAL TEKNOLOGI INFORMASI) Voice Of Informatics Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Multitek Indonesia : Jurnal Ilmiah JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Jurnal Ilmiah Sinus Informasi Interaktif Majalah Ilmiah Bahari Jogja CCIT (Creative Communication and Innovative Technology) Journal TAFAQQUH: Jurnal Hukum Ekonomi Syariah Dan Ahwal Syahsiyah Infotekmesin Jurnal Teknologi Informasi : Jurnal Keilmuan dan Aplikasi Bidang Teknik Informatika Respati Jurnal Sistem Komputer & Kecerdasan Buatan Jurnal Perangkat Lunak Jurnal Informa: Jurnal Penelitian dan Pengabdian Masyarakat TIN: TERAPAN INFORMATIKA NUSANTARA JURNAL PENDIDIKAN, SAINS DAN TEKNOLOGI Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) Jurnal Teknik Informatika (JUTIF) Jurnal Teknimedia: Teknologi Informasi dan Multimedia JNANALOKA Jurnal Senopati : Sustainability, Ergonomics, Optimization, and Application of Industrial Engineering JTECS : Jurnal Sistem Telekomunikasi Elektronika Sistem Kontrol Power Sistem dan Komputer Journal of Technology and Informatics (JoTI) SPEED - Sentra Penelitian Engineering dan Edukasi Jurnal Saintekom : Sains, Teknologi, Komputer dan Manajemen Jurnal Ekonomi dan Teknik Informatika Literasi Nusantara Duta.com : Jurnal Ilmiah Teknologi Informasi dan Komunikasi Techno Innovative: Journal Of Social Science Research Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi) Teknomatika: Jurnal Informatika dan Komputer Tafaqquh : Jurnal Hukum Ekonomi Syariah dan Ahwal Syahsiyah Explore Jurnal Teknologi JuTISI (Jurnal Teknik Informatika dan Sistem Informasi) Jurnal Komtika (Komputasi dan Informatika) Jurnal Bisnis Digital dan Sistem Informasi
Hanif Al Fatta
Universitas Amikom Yogyakarta
Religion Aerospace Engineering Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Analisis Validitas dan Keandalan Tanda Tangan Digital pada Dokumen PDF Chriscel Novian; Hanif Al Fatta
TIN: Terapan Informatika Nusantara Vol 7 No 1 (2026): June 2026
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/tin.v7i1.9963

Abstract

This research aims to analyze the level of validity, measure consistency as a benchmark, and identify the technical metadata factors that influence the validation results of digital signatures. The research scope includes PDF documents with certificates from official authorities or Certificate Authorities (CA) as well as self-signed ones, tested in a Windows 11 environment using Adobe Reader, Foxit Reader, Google Chrome, and Microsoft Edge. An experimental quantitative method was used through a technical approach with automated data processing based on Python scripts for metadata extraction. The research results show a non-uniform level of validation consistency across applications; Foxit Reader achieved the highest accuracy (96.67%), followed by Adobe Reader (91.67%) and Microsoft Edge (90.00%), while Google Chrome (0%) proved to fail completely due to the absence of a cryptographic computation module. The inconsistencies were identified to stem from differences in parser architectures, local security tolerance limits, and software cipher suite library support. Further diagnostic analysis found vulnerabilities due to the absence of third parties such as a Timestamp Authority, as well as an injection security flaw in Microsoft Edge, which failed to detect directory injection attacks. It can be concluded that the absence of standardised PDF parsing can lead to conflicting cross-platform validation results, the reliability of which is entirely dictated by the integrity of the hash algorithm, the cipher suite, the publisher’s status, and the completeness of the timestamp. The contributions of this research include the development of an interoperability benchmark for PDF digital signature validation, the creation of a consistency matrix for cross-platform evaluation, and the identification of technical metadata factors that are the primary determinants of successful validation. The research findings are expected to serve as a reference for application developers, electronic certificate authorities, and organisations in enhancing the security and consistency of digital document validation.
Decision Support Systems in Electronic Procurement for Public Sector Procurement: A Systematic Literature Review on Machine Learning Integration Teguh Cahyono; Alva Hendi Muhammad; Sri Ngudi Wahyuni; Hanif Al Fatta
Jurnal Teknik Informatika (Jutif) Vol. 7 No. 2 (2026): JUTIF Volume 7, Number 2, April 2026
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2026.7.2.5747

Abstract

This study analyzes the evolution of Decision Support Systems (DSS) and Multi-Criteria Decision Making (MCDM) in public sector procurement between 2020 and 2025. Using bibliometric analysis of Scopus and Web of Science articles, the research focuses on themes such as e-procurement, supplier selection, public procurement, and the integration of intelligent technology. Network visualization, overlays, and density mapping were applied to explore keyword relationships, temporal trends, and research intensity. Findings reveal that in 2020, studies concentrated on transparency and digitalization in public e-procurement, with classical MCDA methods, fuzzy TOPSIS, and semantic DSS dominating the approaches. By 2022–2023, the emphasis shifted toward intelligent technologies, including artificial intelligence, neuro-fuzzy systems, and data mining algorithms. These innovations expanded DSS functions from evaluation to predictive analytics and optimization. Core themes such as supplier selection, optimization, and public procurement remained central, while emerging topics like sustainability and clinical decision support systems pointed to new research directions. A significant gap was identified in the university context. Although public sector e-procurement has been widely studied, no research has specifically addressed DSS–MCDM applications in higher education procurement systems. Consequently, future agendas should prioritize adaptive DSS tailored to universities, blockchain integration for transparency, and AI applications in clinical and humanitarian systems.
Co-Authors AA Sudharmawan, AA Aam Shodiqul Munir Abidarin Rosidi Abidarin Rosidi Abidarin Rosidi Abidarin Rosidi Abidarin Rosidi Agam Saka Jati Agus Susilo Nugroho Agustin, Tinuk Ahmad Hajar Alva Hendi Muhammad Alvhinia Meinda Amitaba Anas, Syukron Andi Sunyoto Anggie Ariawan Dewa Putra Anggit Dwi Hartanto Anggraini, Resti Kusuma Annas Al Amin Arief Setyanto Bambang Soedijono Bambang Soedijono W A Bambang Soedijono, Bambang Barnea, Samson Barnea, Samson Bayu Setiaji Bety Wulan Sari Chan Uswatun Khasanah Chriscel Novian Christian Budi Andrianto, Christian Budi Constantin Menteng Darmanto, Darmanto Dewa Saksana, Jidan Dhana Aulia Ayu Kurniawan Dimas Setiawan Donni Prabowo Dwi Sari Widyowaty Ema Utami Eri Sasmita Susanto Faisal Reza Pradhana Fajar Dwi Insani Fandli Supandi Fatimah Nur Arifah Fauji Maulana Ramlan, Fauji Maulana Firstyani Imannisa Rahma Fitriana, Frizka Gori, Takhamo Hadi Sucipto Hafidh Rezha Maulana Hari Agung Budi Santoso Hasan, Nur Fitrianingsih Hendra Kurniawan HENDRA SETIAWAN Hery Maryanto Hidayat Hidayat I Gede Ngurah Arya Indrayasa I Gede Ngurah Arya Indrayasa I Gede Ngurah Arya Indrayasa Imam Adi Nata Khairullah Khairullah Kristama, El Johan Kurniasari, Iin Kusrini Kusrini, K M Suyanto M Suyanto M Suyanto M. Imam Budi Laksamana M. Imam Budi Laksamana M. Nuraminudin M. Suyanto M. Suyanto M. Suyanto M. Suyanto, M. Made Ayu Dusea Widyadara - Universitas Nusantara Kediri, Made Ayu Dusea Widyadara Maksom, Zulisman Moch Ali Machmudi Moh Taufik H Mohammad Suyanto Muhammad Resa Arif Yudianto Muhammad Surahmanto Mutiara Dwi Anggraini NABILA OPER Noor Abdul Haris Noto Narwanto Nugroho Setio Wibowo Nugroho, Rakhmat Prasetyo Agung Nur Khasan Nurmasani, Atik Olivia Maria Inacio Tavares Pamungkas, Prima Giri Pradipta, Dody Purwidiantoro, Moch. Hari Purwoko, Agus Raditya Maulana Anuraga Rahman, Aulia Tegar Rakhma Shafrida Kurnia Risa Helilintar Riska Dwi Handayani Rizki Mawan Safagi, Ardian Yuligar Saifudin, Saifudin Saputra, Artha Gilang Saputra, Artha Gilang Setia Wardani Setiawan, Hendi Siti Rihastuti Sofyan Pariyasto Sri Lestari Rahayu Sri Ngudi Wahyuni Sri Sumarlinda Sugihandono, Agus Sutanto, Yudi Suyanto, M Suyanto, M Teguh Cahyono Tigus Juni Betri Tika Dedy Prastyo Tri Nugroho, Arief Tukan, Ewaldus Ambrosius Turah Suhono Tutik Maryana Wahyu Sindu Prasetya Widiyanto, Wahyu Wijaya Wijaya, Tri Amri Wing Wahyu Winarno Wira Dimuksa Wiwi Widayani Yetman Erwadi Yulia Rahmi Yuliana Yuliana Yusuf Fadlila Rachman Zakaria, Mohd Hafiz Zul Hisyam