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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Creative Information Technology Journal SISFOTENIKA JURIKOM (Jurnal Riset Komputer) CCIT (Creative Communication and Innovative Technology) Journal IT (INFORMATIC TECHNIQUE) JOURNAL TIN: TERAPAN INFORMATIKA NUSANTARA Journal of Social Responsibility Projects by Higher Education Forum BEES: Bulletin of Electrical and Electronics Engineering Journal of Scientech Research and Development Journal of Community Service Information System and Data Science Jurnal ICT : Information and Communication Technologies Bulletin of Informatics and Data Science Jurnal ABDIMAS MUTIARA PUBLIDIMAS CSRID IESM Jurnal Kendali Teknik dan Sains
Iwan Fitrianto Rahmad
Universitas Potensi Utama
Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Social Sciences Veterinary Other

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Developing Digital Examination System Security through the Implementation of the RC4 Algorithm Lubis, Muhammad Luthfi Moratuah; Rahmad, Iwan Fitrianto
Jurnal ICT : Information and Communication Technologies Vol. 16 No. 2 (2025): October, Jurnal ICT : Information and Communication Technologies
Publisher : Marqcha Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/jict.v16i2.274

Abstract

The increasing shift toward digital-based academic administration presents significant challenges for educational institutions, particularly regarding the security of examination data, which remains vulnerable when managed through manual processes. To address this issue, this study aims to develop and implement a secure web-based digital examination system using the RC4 cryptographic algorithm to ensure the confidentiality, integrity, and availability of assessment records at Harapan Mekar 1 Vocational School. Employing the CRISP-DM methodology, the research includes business understanding, data preparation, system development, encryption–decryption integration, and system validation. The RC4 algorithm, known for its lightweight structure and fast computational performance, was applied to encrypt student, teacher, and examination data across all operational modules. The results show that the system successfully encrypts and decrypts data through stable implementation of the Key Scheduling Algorithm (KSA) and Pseudo Random Generation Algorithm (PRGA), thereby strengthening protection against unauthorized access and eliminating risks associated with traditional manual data handling. The system effectively enhances operational efficiency and data security, demonstrating that RC4 remains a viable encryption option for educational environments with limited computational resources. This study offers practical implications for schools seeking accessible security solutions and serves as a reference for further system enhancements using more advanced cryptographic algorithms or extended digital examination features.
TRANSFORMASI DIGITAL PEMBAYARAN UANG SEKOLAH MELALUI APLIKASI ANDROID DI MADRASAH IBTIDAIYAH SWASTA AZRINA Wahyuni, Linda; Ummi, Khoirul; Dewi, Ananda Fitriani; Rahmad, Iwan Fitrianto
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 32 No. 1 (2026): Januari-Maret
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v32i1.70298

Abstract

Program pengabdian ini dilaksanakan untuk menyediakan sistem pembayaran Sumbangan Pembinaan Pendidikan (SPP) berbasis Android di Madrasah Ibtidaiyah Swasta Azrina sebagai alternatif dari proses pembayaran manual yang selama ini digunakan. Sistem pembayaran konvensional dinilai kurang efisien karena menimbulkan antrean, membutuhkan waktu lama, serta rentan terjadi kesalahan dalam pencatatan. Pelaksanaan kegiatan meliputi pengamatan langsung, pemetaan kebutuhan mitra, sosialisasi kepada pihak sekolah dan wali murid, serta penerapan aplikasi Android yang memungkinkan transaksi dilakukan secara digital. Berdasarkan hasil implementasi, penggunaan aplikasi mampu mempercepat proses transaksi, mempermudah proses pengecekan pembayaran, dan meningkatkan ketepatan penyimpanan data keuangan sekolah. Meski demikian, tidak semua pengguna dapat memanfaatkan sistem dengan optimal karena terbatasnya pemahaman teknologi dan akses internet yang tidak merata. Secara umum, sistem pembayaran SPP berbasis Android ini dinilai layak diterapkan dan berpotensi digunakan secara lebih luas apabila disertai pelatihan lanjutan dan integrasi dengan sistem keuangan digital. Kata kunci: sistem pembayaran SPP, aplikasi Android, digitalisasi sekolah, administrasi keuangan, pengabdian masyarakat
Penerapan Internet Of Things (IoT) Untuk Mendeteksi Kadar Alkohol Pada Pengendara Mobil Vidi Agung Fragastia; Iwan Fitrianto Rahmad
Industrial Engineering System and Management Journal Vol. 1 No. 1 (2019): Vol 1 No 1 Februari 2019
Publisher : LPPM Universitas Potensi Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dalam kehidupan keseharian, manusia mengerjakan segala aktifitas yang padat, baik aktifitas berat maupun ringan. Sudah tentu akan memerlukan tenaga atau energi untuk melakukan semua kegiatan tersebut, Energi yang diperlukan manusia dapat diperoleh melalui konsumsi makanan dan minuman, termasuk makanan dan minuman yang mengandung alkohol. Etanol pada makanan dan minuman beralkohol telah dikonsumsi manusia sejak dahulu kala dengan berbagai tujuan penggunaan yang berbeda-beda. Konsumsi alkohol dalam jumlah besar akan menyebabkan seseorang teler atau mabuk. Dalam beberapa makanan dan minuman yang ada dipasaran banyak yang mengandung alkohol didalamnya walaupun dalam jumlah kecil. Jika minuman beralkohol dikonsumsi terus-menerus dalam jumlah berlebihan, maka dapat menyebabkan kegagalan pernapasan akut dan kematian. Karena etanol dapat menghilangkan kesadaran, manusia yang mengkonsumsinya dapat melakukan perbuatan buruk yang tidak disadar. Kecelakaan yang terjadi didalam berkendara merupakan bagian dari implikasi lain dari penyalagunaan penggunaan alkohol. Konsumsi alkohol yang terlalu banyak menurunkan kinerja manusia dalam mengemudi, sehingga meningkatkan resiko terjadi kecelakaan atau mengurangi peluang kelangsungan hidup pengendara. Sekitar 40% total kematian yang terjadi di lalu lintas berkaitan dengan penggunaan alkohol. Diperlukan sebuah sistem pendeteksi penggunaan alkohol terdapat pengendara, dengan tujuan mengurangi hal tersebut. Perancangan sistem ini menggunakan sensor MQ303A berbasis mikrokontroler ATMEGA328 dengan module GSM SIM800L. Perangkat ini menggunakan bahasa pemrograman C dan datalog yang tersimpan kedalam server menggunakan komunikasi internet.
Sistem Pemantauan Suhu dan Kelembapan Udara Pada Bunga Lompong Menggunakan IoT Dimas Yussan Muharrom; Khairi Fadli Winata; Nurul Fadilah; Saidah Ulya; Iwan Fitrianto Rahmad
Jurnal Kendali Teknik dan Sains Vol. 4 No. 1 (2026): Januari: Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v4i1.5896

Abstract

The lompong flower is an ornamental plant that requires stable soil moisture conditions and a stable environment so that it can grow optimally. Moisture level mismatches often hinder growth and even have the potential to cause plant damage. This research aims to design and implement an Internet of Things (IoT)-based humidity monitoring system that is able to monitor the humidity condition of the pond flower in real-time. The system developed uses soil moisture sensors as input devices, microcontrollers as data processors, and internet networks as a medium for sending data to the monitoring platform. The data obtained is displayed directly so that users can know the actual humidity conditions and take appropriate maintenance actions. The results show that the system is able to display moisture data with a good level of accuracy, as well as provide relevant information for users in plant care decision-making. The implementation of this system has proven to be effective in supporting the maintenance of lompong flowers, especially in maintaining soil moisture stability. This research is expected to be a reference for the development of IoT-based ornamental plant monitoring technology, as well as contribute to improving the quality of plant care in a more efficient and measurable manner.
Co-Authors Aditya, Elsa Akbar, M. Ridho Alfa Saleh Alfa Soleh Alfa Soleh Amri, Aulia Ananda Fitriani Dewi Ardani, Tira Azhar, Wahyu Bob Subahan Riza Budi Triandi Budi Triandi Budi Triandi, Budi Dimas Yussan Muharrom Doni, Rahmad Edy Victor Haryanto, Edy Victor Erdiana Gultom Evri Ekadiansyah Evri Ekadiansyah Fragastia, Vidi Agung Ginting, Ria Ukur Harahap, Nur Anzelina Hardianto Hardianto Harold Situmorang, Harold Helmi Kurniawan Helmi Syaiful Rahman Hestina Irfannur Diah Juanda Hakim Lubis Juanda Hakim Lubis Juanda Hakim Lubis Khairi Fadli Winata Khairul Ummi, Khairul Lili Tanti Lubis, Muhammad Luthfi Moratuah M Rizky M. Alif Firdiansyah Maulana Fajar Sidik Mesran Mesran, M.Kom Muhammad Arif Prayudi, Muhammad Arif Muhammad Yusra Rustam Nur Fadillah Nurul Fadilah Pairin, Yusfrizal Bin Pasaribu, Jamil Puji Widodo Purba, Adelina Rahmad Aditya Rahmad Aditya Rahmad Doni Rahmad Doni Rahmad Doni Rahmad, Sofyan Ratih Puspasari Reza Hermawan Robby Ardyanto Marsudi Saidah Ulya Samsir Samsir Samsir Samsir, Samsir Setiawan, Adil Siregar, Rahmadani Sri Mulia Mz Tanjung, Dahriyani Hakim Tumbur Munthe Ummi, Khoirul Wahyu Azhar Wahyuni, Linda Wiwi Verina Yudhi Andrian