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All Journal VISIKES Elkom: Jurnal Elektronika dan Komputer Jurnal Transformatika JUSIFO : Jurnal Sistem Informasi Jurnal Informatika Upgris Sistemasi: Jurnal Sistem Informasi JOURNAL OF APPLIED INFORMATICS AND COMPUTING Dinamisia: Jurnal Pengabdian Kepada Masyarakat Jurnal Sisfokom (Sistem Informasi dan Komputer) Journal of Dedicators Community Comvice : Journal of community service Jurnal Sistem Informasi Kaputama (JSIK) Journal of Technopreneurship and Information System (JTIS) Jurnal Informatika dan Rekayasa Perangkat Lunak Jurnal Berdaya Mandiri Jurnal TIKOMSIN (Teknologi Informasi dan Komunikasi Sinar Nusantara) Community Empowerment Jurnal Program Kemitraan dan Pengabdian Kepada Masyarakat Walisongo Journal of Information Technology Advance Sustainable Science, Engineering and Technology (ASSET) JAST GANESHA: Jurnal Pengabdian Masyarakat J-Intech (Journal of Information and Technology) Journal of Artificial Intelligence and Engineering Applications (JAIEA) J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Ilmiah Teknik Informatika dan Komunikasi Jurnal Adijaya Multidisiplin JURNAL ILMIAH SAINS TEKNOLOGI DAN INFORMASI Jurnal Penelitian Sistem Informasi JURNAL ILMIAH TEKNIK INDUSTRI DAN INOVASI (JISI) Scientica: Jurnal Ilmiah Sains dan Teknologi Jurnal Ilmiah Research Student Jurnal Sains Student Research Jurnal Informatika: Jurnal Pengembangan IT Jurnal Pengabdian Masyarakat dan Riset Pendidikan JURNAL ILMIAH PENELITIAN MAHASISWA Prosiding Seminar Nasional Unimus Scientific Journal of Informatics SWAGATI: Journal of Community Service E-Amal: Jurnal Pengabdian Kepada Masyarakat Router : Jurnal Teknik Informatika dan Terapan Modem : Jurnal Informatika dan Sains Teknologi Merkurius: Jurnal Riset Sistem Informasi dan Teknik Informatika Router : Jurnal Teknik Informatika dan Terapan Journal of Information Technology Jurnal Informatika Jurnal Pendidikan dan Keguruan Jurnal Salome (Multidisipliner Keilmuan)
Bambang Agus Herlambang, Bambang
Universitas PGRI Semarang, Indonesia
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Implementation of Image Data Security Using the AES-256 Algorithm in the Work Accident Recording System Dzulfiqar Alang Setiawan; Bambang Agus Herlambang; Ramadhan Renaldy
Jurnal Informatika Vol. 13 No. 1 (2026): April
Publisher : Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/informatika.v13i1.12372

Abstract

This study aims to implement an image data security mechanism in a web-based work accident recording system in an industrial environment by applying the Advanced Encryption Standard (AES) 256-bit cryptographic algorithm in Cipher Block Chaining (CBC) mode. The problem faced is the lack of an adequate protection mechanism for sensitive work accident photo files so that they have the potential to be accessed, copied, or modified by unauthorized parties. This study uses the Software-Oriented Prototyping method which allows system development to be carried out iteratively based on user needs and evaluation results at each development stage. The encryption process is carried out when the image file is uploaded into the system by generating a random Initialization Vector (IV) of 16 bytes, then the image data is encrypted using the AES-256-CBC algorithm and stored in ciphertext form with the file extension .enc. The decryption process is carried out when the file will be displayed again using the appropriate secret key and IV without storing the file in plaintext form on the server. The test results show that the encryption process has an average execution time of around 0.002–0.008 seconds, while the decryption process takes around 0.00004–0.001 seconds. In addition, the size of the encrypted file relatively follows the size of the original image file with an additional size of around 16–32 bytes due to the padding process and the use of initialization vectors. The results of the study indicate that the application of the AES-256-CBC algorithm is able to maintain the confidentiality and integrity of image data without having a significant impact on system performance. Thus, the developed system can improve the security of digital file storage and support a more structured, secure, and efficient management of work accident data.
Analisis Sebaran Sapi Potong Hasil Kawin Suntik di Kabupaten Grobogan Menggunakan Sistem Informasi Geografis (SIG) Irfan Maiyola; Bambang Agus Herlambang; Khoiriya Latifa
JURNAL ILMIAH SAINS TEKNOLOGI DAN INFORMASI Vol. 2 No. 1 (2024): Januari : Jurnal Ilmiah Sains Teknologi dan Informasi
Publisher : CV. ALIM'SPUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jiti.v2i1.591

Abstract

This research analyzes the distribution of artificially inseminated beef cattle across various districts in Grobogan Regency through WebGIS. The data reveals variations in the number of beef cattle per district, with Wirosari District having the highest population reaching 8,277 heads. The utilization of WebGIS provides advantages in information presentation, particularly with pop-up features when placing the cursor on specific regions, facilitating a profound understanding of the traders' distribution at the local level. This advantage offers significant benefits to stakeholders, including local governments and farmers in each district of Grobogan Regency. This analysis not only presents information visually but also opens opportunities for exploration and more accurate decision-making through the WebGIS platform, supporting efforts in sustainable management and development of the livestock sector.
Sistem Informasi Geografis Tentang Pemetaan Jumlah Rumah Sakit Dan Poliklinik Dikota Semarang Tarisa Ramadhani; Bambang Agus Herlambang; Khoiriya Latifa
JURNAL ILMIAH SAINS TEKNOLOGI DAN INFORMASI Vol. 1 No. 4 (2023): Oktober : Jurnal Ilmiah Sains Teknologi dan Informasi
Publisher : CV. ALIM'SPUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jiti.v1i4.598

Abstract

Hospitals and polyclinics are professional health care institutions whose services are provided by doctors, nurses and other health experts. As the function of hospitals becomes increasingly vital, every community member is expected to know the locations of the hospitals and polyclinics closest to where they live to anticipate undesirable events. Geographic Information Systems (GIS) is a technology that is currently a very essential tool in storing, manipulating, analyzing and displaying natural conditions with the help of attribute data and spatial data. GIS can represent the real world on a computer monitor just as a map sheet can represent the real world on paper. Under these conditions, this system is very useful in making it easier for the health service to manage and review the location of hospitals in the city of Semarang, so that in the future it can be in line with programs from other agencies involved in managing city spatial planning. The aim of this research is to build a geographic information system with an integrated database, especially to find the locations of hospitals and polyclinics in the city of Semarang. So it can provide information to users who want to find hospital locations in the city of Semarang.
Sistem Informasi Geografis Pemetaan Jumlah Usaha Mikro Kecil Menengah (UMKM) di Kota Semarang Mutiara Salsabila; Bambang Agus Herlambang; Ahmad Khoirul Anam
JURNAL ILMIAH SAINS TEKNOLOGI DAN INFORMASI Vol. 3 No. 2 (2025): April : Jurnal Ilmiah Sains Teknologi dan Informasi
Publisher : CV. ALIM'SPUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jiti.v3i2.1100

Abstract

Usaha Mikro Kecil Menengah (UMKM) adalah usaha produktif yang dimiliki perorangan maupun badan usaha yang telah memenuhi kriteria sebagai usaha mikro. Kota Semarang merupakan kota terbesar ke-5 di Indonesia. Berkembangnya usaha di kota besar membuat para masyarakat berlomba-lomba membuat inovasi dalam industrif kreatif saat ini. Kekuatan ekonomi kerakyatan yang menopang perekonomian masyarakat, membuat pemerintah bergerak membantu untuk mewujudkan kesejahteraan masyarakat.
SISTEM INFORMASI GEOGRAFIS PERSEBARAN SEKOLAH KESETARAAN SEBAGAI ALTERNATIF ANAK PUTUS SEKOLAH DI KABUPATEN DEMAK Hanun Ravi Putra Wardana; Bambang Agus Herlambang; Ahmad Khoirul Anam
JURNAL PENDIDIKAN DAN KEGURUAN Vol. 2 No. 1 (2024): Jurnal Pendidikan dan Keguruan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

One of the important components in the development of society is education. But kids are still dropping out of school in many places, including in Demak District. Therefore, innovative solutions are needed to address this problem. The aim of this research is to create a geographical information system (GIS) that can map and analyze how equality schools are spread across Demak district as an educational alternative for school dropouts. The waterfall method used with the Quantum GIS software used in this study aims to provide an accurate picture of the educational status and distribution of equality schools in Demak District. Buddhism is used as a reference in the data collection process. Therefore, this study can provide a thorough analysis of the difficulties and opportunities that exist to address the problem of school dropout in the region. Besides, this research can provide a strong foundation for creating better educational solutions.
SISTEM INFORMASI GEOGRAFIS PEMETAAN BANYAKNYA KEJADIAN BENCANA ALAM DI PROVINSI JAWA BARAT BERBASIS WEB Rizqa Zahrotun Nafiah; Bambang Agus Herlambang; Ahmad Khoirul Anam
Jurnal Salome : Multidisipliner Keilmuan Vol. 2 No. 1 (2024): Jurnal Salome: Multidisipliner Keilmuan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

West Java Province is one of the areas in Indonesia that is often affected by natural disasters, such as floods, landslides, and earthquakes. According to the West Java BPBD, in 2023 there were 970 disaster events in West Java Province, which resulted in 26 deaths and 98,860 people displaced. As a disaster-prone area, information about disasters is needed by the community to monitor disasters that occur. This research aims to develop a Geographic Information System (GIS) mapping the number of natural disasters in West Java Province used to store and display disaster distribution maps. This GIS was developed using HTML, CSS, and Javascript programming languages. The results of this research are in the form of a geographic information system mapping the number of natural disaster events in West Java Province where users can view data in tabulation and graphics.
SIG SEBARAN PRODUKSI PERKEBUNAN KELAPA MENURUT KABUPATEN/KOTA PEMALANG 2018-2020 Widya Aprilia; Bambang Agus Herlambang; Ahmad Khoirul Anam
Jurnal Salome : Multidisipliner Keilmuan Vol. 2 No. 2 (2024): Jurnal Salome: Multidisipliner Keilmuan
Publisher : CV. ADIBA AISHA AMIRA

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Abstract

Coconut plantations play an important role in the plantation sector in Indonesia, especially in the Pemalang area. This article analyzes the distribution of coconut plantation production in Pemalang district/city using data on production and area of coconut cultivation based on Pemalang district/city. Production distribution analysis includes statistical methods and geographic mapping to identify coconut production patterns in each administrative region. The results of this analysis provide an overview of the significant differences in coconut production between districts/cities in Pemalang from 2018 to 2020. Apart from that, this analysis also provides an in-depth understanding of the distribution of coconut production in Pemalang District/City and will later become the basis for strategic planning to increase coconut plantation production, improving agricultural practices and improving the welfare of local communities and farmers.
Implementation of the K-Means Algorithm for Clustering Zoning of Natural Disaster-Prone Areas in Pati Regency Arifin Arifin; Bambang Agus Herlambang; Aris Tri Joko Harjanto
Sistemasi: Jurnal Sistem Informasi Vol 15, No 3 (2026): Sistemasi: Jurnal Sistem Informasi
Publisher : Program Studi Sistem Informasi Fakultas Teknik dan Ilmu Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32520/stmsi.v15i3.5970

Abstract

Based on data from the Central Bureau of Statistics (BPS) of Pati Regency, during the 2018–2022 period the region frequently experienced natural disasters, particularly floods and landslides, across many areas.The high frequency of these disasters and the lack of proper mapping of affected areas present challenges that need to be addressed effectively. By utilizing technology and the K-Means clustering method, this study proposes an alternative solution to identify and map areas that are vulnerable to natural disasters. The results of the analysis indicate that Pati Regency can be divided into three clusters: Cluster 1 represents highly disaster-prone areas, accounting for 42.86% (9 regions); Cluster 2 represents disaster-prone areas, accounting for 19.04% (4 regions); and Cluster 3 represents areas with low disaster vulnerability, accounting for 38.1% (8 regions). The visualization results are presented as a classification map of regions based on their disaster vulnerability levels. This map can serve as a reference for local governments and relevant institutions in formulating more targeted and effective disaster mitigation policies.
Implementation of BPS RESTful API on Flutter-Based DALEM Mobile Application for Statistical Data Access Efficiency Aan Kia Asshifa; Bambang Agus Herlambang; Khoiriya Latifa; M Abdul Muhshi
Jurnal Sisfokom (Sistem Informasi dan Komputer) Vol. 15 No. 3 (2026): JULY
Publisher : ISB Atma Luhur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32736/sisfokom.v15i3.2646

Abstract

This study addresses the urgent issue of inefficient access to statistical data on the official BPS-Statistics Indonesia, Demak Regency website, particularly under conditions of increasing data volume and limited network stability. Users frequently experience slow response times and high data consumption due to complex web rendering and excessive network requests, which hinder timely access to critical information for decision-making. Therefore, this research aims to implement the RESTful API on the Flutter-based DALEM mobile application to improve the efficiency of access to BPS-Statistics Indonesia, Demak Regency statistical data. The method used is Research and Development (R&D) with the ADDIE model, accompanied by comparative experimental testing of the official BPS website system. Evaluation parameters include response time, number of requests, and data transfer efficiency. The test results showed that mobile applications have an average response time of 437-826 ms with 1-10 requests per scenario, while websites require 1,368-1,790 ms with 80-91 requests. Quantitatively, mobile applications showed an increase in access time efficiency of more than 50% and a reduction in the number of requests by up to 88%. These findings prove that the JSON-based RESTful API architecture combined with Asynchronous programming on Flutter is able to significantly optimize client-server communication in regional statistical data services.
Co-Authors Aan Kia Asshifa Aan Kia Asshifa Abda Abda Abdun Nafi' Adam Alfareza Aditya Galih Prathama Adrianto, Syahrul Agesti, Okta Vian Ahmad Khoerul Anam Ahmad Khoirul Anam Ahmad Khoirul Anam Ahmad Khoirul Anam Ahmad Khoirul Anam Ahmad Khoirul Anam Ahmad Khoirul Anam Ahmad Subhan Ainia Hasna Salsabila Aldi Widodo Anam, Ahmad Khoirul Angga agustino maulana Ardianti Romsita Ari Tri Jaka Harjanta Arif Firmansyah Arifin Arifin Aris Tri Jaka Harjanta, Aris Tri Aris Tri Joko Harjanto Aris Trijaka Harjanta Arisul Ulumuddin Armanda Yasir Danuarsa Aurellia Callista Dewi Baharudin alamsyah Bakhtiar, Tegar Robi Baromim Triwijaya Bima, Bima Aditya Hendriansyah Chairunnita Chairunnita Danu Candra Saputra David Rian Prabowo Desi Purwaningsih Dimas Aditya Saputra Duwi Nuvitalia Dwi Nuvitalia Dyah Nugrahani Dzulfiqar Alang Setiawan Eka Setyabudi Eni Imro’atun Wahyu Septiani Ernawati Saptaningrum Farhan Afrian Fatmawati, Maylia Febrian Murti Dewanto Fitri Sari , Rindhi Fitri Yulianti Galih Hermawan Hanum Nahla Zahrani Hanun Ravi Putra Wardana Hanun Ravi Putra Wardana Hapsari Larasati Harjanto, Aris Tri Joko Haryo Kusumo Hayyannabil, Adha Wiyan Heni Purwati Indradewi, Marlisa Irfan Maiyola Khoiriya Latifa khoiriya latifah Khoiriya Latifah, Khoiriya Khoirul anam KHOIRUL ANAM Khoirul Anam, Ahmad Kikit Wahyuni Kusumo, Haryo Laela Rustiani Laras Wulansari Latif Junia Angreani M Abdul Muhshi Marlina, Dian Mega Novita Mega Novita Mega Novita Miftakhul Jannah Moh Ferdio Arifianto Saputro Moh Zaenal Fanani MUHAMAD RAIKHAN ILHAM FIRMANSYAH Muhammad Rizki Kurniawan, Muhammad Rizki Muhammad Saifuddin Zuhri Muhammad Saifuddin Zuhri Muhammad Vendi Nur Rohim Muhtarom Mutiara Salsabila Nafi', Abdun Naila Amelia Shahada Najwa Mahdewi Syahita Nicko Ilham Akbar Nida Hanifah Nilna Rusyda Widyaningsih Nityasa Tustika Noora Q. N Noora Qotrun Nada, Noora Qotrun Nugroho Dwi Saputro Puji Ratna Sari Qodimah, Fitrotul Ramadhan Renaldy Renaldy, Ramadhan Reza aditya pratama Rima Febryani Rizky Esti Utami, Rizky Esti Rizqa Zahrotun Nafiah Rizqi pasha eko adi prabowo S Sumarno Saeful Fahmi Saeful Fahmi, Saeful Safira Indah Utami Saputro, Anjar Tiyo Senowarsito Septiani Eka Retnosari Septio Oggy Pradana Setyoningsih Wibowo Shentika Ayu Wulandari Siti Musarokah Sunarya Sunarya Syahrul Adrianto Tarisa Ramadhani Tedy Firmansyah Vilda Ana Veria Setyawati Vilda Ana Veria Setyawati Vilda Ana Veria Setyawati Vilda Ana Veria Setyawati Vilda Ana Veria, S.Gz, M.Gizi Vivi Ferliana Putri Waliyansyah, Rahmat Robi Widodo, Aldi Widya Aprilia Wiyaka Wulan Agustina Wulandari, Shentika Ayu Yudha Ananda Ramadhan Yuli Kurniati Werdiningsih Yuli Kurniati Werdiningsih, Yuli Kurniati Yusuf Ma'iin Rohmatulloh