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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) RABIT: Jurnal Teknologi dan Sistem Informasi Univrab JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Media Informatika International Journal Software Engineering and Computer Science (IJSECS) Jurnal Ilmiah SIGMA: Informatics Engineering Journal of UPB Jurnal Pustaka AI : Pusat Akses Kajian Teknologi Artificial Intelligence Jurnal Bakti Bagi Bangsa SISFOTENIKA
Turmudi Zy, Ahmad
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Social Sciences Other

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Design and Development of An Information System for Indemnity Claim Box Recapitulation Using SDLC Method at Mandiri Inhealth Insurance Yumansyah, Qori; Fatchan, Muhamad; Turmudi Zy, Ahmad
International Journal Software Engineering and Computer Science (IJSECS) Vol. 3 No. 3 (2023): DECEMBER 2023
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijsecs.v3i3.1970

Abstract

The recapitulation of indemnity claim box system is an ongoing procedural development activity aimed at producing a new system. This activity is undertaken once the system analysis phase has been completed. Based on the results of the current system analysis discussed in the previous section, this paper presents the outcomes of the new system. The performance of the new system is expected to address several issues related to claim data recapitulation. The design of the Indemnity Claim Box Recapitulation system can be applied to reduce the potential for missing documents, simplify reporting, and ensure easy, fast, and accurate access. Implementation testing can assist users and leaders in the claim data recapitulation process.
Classification of Drug Data Usage Using the K-Means Deep Algorithm to Minimize Drug Stock Shortages (Case Study: South Cikarang Community Health Center) Mantona, Muhamad Risvan; Turmudi Zy, Ahmad; Suwarno, Agus
International Journal Software Engineering and Computer Science (IJSECS) Vol. 4 No. 1 (2024): APRIL 2024
Publisher : Lembaga Komunitas Informasi Teknologi Aceh (KITA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/ijsecs.v4i1.2366

Abstract

Efficient utilization of medicines is essential for effective health service delivery, especially in community health centers. This research explores the application of the K-Means clustering algorithm to categorize drug usage data and minimize stock shortages. This research, conducted at the South Cikarang Community Health Center, analyzed drug use patterns to identify drugs with high and low demand. Through data collection, cleaning, and pre-processing, medication use data is converted into a format suitable for clustering analysis. The clustering method approach can be applied to analyze the level of drug use produced by utilizing data sets to record the process of drug data results. The K-Means algorithm model applied has results that show new insights, namely grouping usage levels based on 2 clusters; cluster 1 (C0) is a high potential category consisting of 3.4 data from the tested dataset, and cluster 2 (C1) is Low Potential. Consists of 7.2 tested data, right? Collaborative testing can also produce collaborative testing results that show an average figure of 0.545.
Implementasi Steganografi Menggunakan Metode Least Significant Bit (LSB) Berbasis Web (Studi Kasus : PT Bank Tabungan Negara) Turmudi Zy, Ahmad; Isarianto; Susilo, Arif; Mustafanah, Alif
Jurnal SIGMA Vol 14 No 3 (2023): September 2023
Publisher : Teknik Informatika, Universitas Pelita Bangsa

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

Abstract

Dalam sebuah perusahaan pasti terdapat sebuat interaksi pertukaran informasi baik pesan, data ataupun gambar untuk pertukaran tersebut di butuhkan sebuah aplikasi yang dapat mengirim dan menerima sebuah informasi, tak jarang sebuah perusahaan menggunakan social media sebagai alat pertukaran informasi. Dalam pertukaran informasi yang berkaitan dengan rahasia perusahaan di butuhkan keamanan yang sangat extra mengingat banyak sekali peretasan terhadap social media. Oleh karena itu untuk menyiasatinya kita membutuhkan kemanan tambahan yang dapat menyembunyikan pesan tersebut tanpa di ketahui oleh orang lain. dari permasalahan peretasan diatas penulis berusaha mencari keamanan tambahan untuk pertukaran pesan antara karyawan perusahaan yang aman dan tidak diketahui orang lain, kemudian penulis menemukan Steganografi yaitu teknik menyembunyikan pesan kedalam gambar jadi selain si pengirim dan si penerima tidak akan tahu bahwa gambar tersebut berisi pesan. Untuk metodenya penulis mengambil Leas Significant Bit karena dalam penerapannya wadah untuk mengisi pesan lebih banyak. Kata kunci: Steganografi, Secret Massage with Image, Image, Steganografi LSB.
LEGALITAS USAHA UNTUK PENGEMBANGAN UMKM DI DESA KARANGSEGAR Septiani Ningrat, Nova; Rofieq, Ainur; Turmudi Zy, Ahmad
An-Nizam Vol 2 No 3 (2023): An Nizam : Jurnal Bakti Bagi Bangsa
Publisher : Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/an-nizam.v2i3.8130

Abstract

The current condition of MSMEs is recommended to have business legality for their products. However, in Karangsegar Village, it is still minimal and the community does not understand the importance of business legality in the market. Community service activities aim to improve and assist Karangsegar Village MSME players in marketing products and business development through legality. The method of implementing the service applies socialisation, training and mentoring methods until the MSME actors have obtained a business identification number and halal certification. The results of community service are that MSME actors obtain the right business legality, build consumer confidence, and the existence of certification and legality helps improve reputation and increase product competitiveness.
PENANAMAN KESADARAN PENTINGNYA MOTIVASI BELAJAR SEBAGAI UPAYA MENUMBUHKAN SEMANGAT BELAJAR PADA SISWA Aureli Rahmadani, Debby; Rofieq, Ainur; Turmudi Zy, Ahmad
An-Nizam Vol 2 No 3 (2023): An Nizam : Jurnal Bakti Bagi Bangsa
Publisher : Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/an-nizam.v2i3.9468

Abstract

Education is an important aspect in growing and developing one's potential to realize what one dreams of. To achieve your goals you need motivation or encouragement to do something. This seminar activity aims to instill awareness of the importance of learning motivation in fostering enthusiasm for learning in Class 6 students at SDN Karangsegar 02, Karangsegar Village, Pebayuran District, Bekasi Regency. The research method was carried out using observation techniques, interviews and filling out questionnaires from Sardiman figures. The seminar was conducted using lecture and role play methods. The results of the seminar were very significant and could be said to be successful because based on the post test all participants were able to understand the material presented well. It is hoped that after attending this seminar the students will be motivated to be enthusiastic about learning and will ultimately become successful people according to their respective desires.
PENERAPAN TEKNIK PENETRATION TESTING TERHADAP CROSS SITE SCRIPTING (XSS) DALAM PENGEMBANGAN WEBSITE Chandra, Ahmad Alfian; Turmudi Zy, Ahmad; Nugroho, Agung
Rabit : Jurnal Teknologi dan Sistem Informasi Univrab Vol 9 No 2 (2024): Juli
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/rabit.v9i2.4822

Abstract

The increasing use of websites in various aspects of daily life has led to an urgent need to ensure the security of the information presented. One of the significant threats in website security is Cross-Site Scripting (XSS), where an attacker inserts malicious code into a web page to be executed by the user. This research aims to apply penetration testing techniques as a method to detect and resolve XSS vulnerabilities in website development. The research was conducted through three stages: installation of software to support penetration testing, execution of penetration testing using OWASP ZAP to identify vulnerabilities, and evaluation and implementation of solutions to address the vulnerabilities found. The results show that the implementation of the htmlspecialchars function in PHP is effective in preventing the execution of malicious scripts, thereby reducing the risk of XSS attacks. In addition, penetration testing techniques proved to be an effective method in identifying and mitigating security risks in web applications. Thus, this research emphasizes the importance of thorough security testing and implementation of appropriate preventive measures to maintain the integrity and user trust of web applications.
Effectiveness Study of Hybrid Caesar-Vigenere Cipher Method in Text Security Wafha Zahra Mulqiya; Zulaeha; Vivie Zuliani Erikasari; Tyanshi Firli Maharani; Turmudi Zy, Ahmad
SISFOTENIKA Vol. 15 No. 1 (2025): SISFOTENIKA
Publisher : STMIK PONTIANAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30700/sisfotenika.v15i1.528

Abstract

Data security has become very important to protect data from threats such as theft and manipulation in this digital era. This research investigates how the hybrid Caesar-Vigenere Cipher method that combines Caesar Cipher and Vigenere Cipher algorithms protects text data with double encryption. This method uses the Three-Pass Protocol, which allows the sender and receiver to exchange messages without sharing keys, increasing the complexity of the ciphertext and improving the defense against brute force attacks. The results show that the hybrid algorithm improves the security of text data better than the single encryption method, especially for small to medium-sized applications. This research offers a practical solution to the problem of data security in the digital era.
PROSES ENKRIPSI BERLAPIS MENGGUNAKAN TEKNIK KRIPTOGRAFI VIGENERE DAN CAESAR Fauzan Gifari, Muhammad; Azwa Dipani, Muhammad; Abdillah, Syahbarudin; Turmudi Zy, Ahmad
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 2 (2025): JATI Vol. 9 No. 2
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i2.12840

Abstract

Dengan meningkatnya kebutuhan akan mekanisme perlindungan data yang sederhana namun efektif untuk mencegah akses tidak sah dan modifikasi data sensitive.Teknik kriptografi klasik dipilih karena sifatnya yang mudah diterapkan dan kompatibel dengan berbagai sistem berbasis teks.Penelitian ini mengusulkan pendekatan enkripsi berlapis dengan menggabungkan Vigenere Cipher dan Caesar Cipher untuk meningkatkan keamanan data berbasis teks.Dengan mengeksplorasi efektivitas teknik kriptografi klasik dalam memberikan perlindungan dasar terhadap akses tidak sah dan modifikasi data sensitif dengan menggabungkan dua teknik kriptografi klasik. Proses enkripsi dilakukan dalam dua tahap: pertama, data akan dienkripsi menggunakan Vigenere Cipher, kemudian dienkripsi kembali menggunakan Caesar Cipher. Proses dekripsi dilakukan secara terbalik, dimulai dengan Caesar Cipher dan diikuti dengan Vigenere Cipher. Dari Hasil pengujian menunjukkan bahwa metode ini efektif untuk memberikan perlindungan dasar pada data seperti kata sandi dan informasi sederhana. Namun, metode ini tetap memiliki kelemahan, seperti rentannya Caesar Cipher terhadap serangan brute-force dan potensi analisis frekuensi pada Vigenere Cipher jika kunci yang digunakan terlalu pendek. Oleh karena itu, metode enkripsi berlapis memberikan perlindungan tambahan, metode ini lebih cocok untuk aplikasi dengan kebutuhan keamanan dasar. Untuk kebutuhan keamanan yang lebih tinggi, disarankan untuk menggunakan algoritma enkripsi yang lebih kuat seperti AES atau RSA, guna memastikan perlindungan data yang lebih aman dan lebih terjamin.
KRIPTOGRAFI KLASIK DAN KEAMANAN DASAR : IMPLEMENTASI KASIR RESTORAN DENGAN PENDEKATAN METODE CAESAR CIPHER Pratama, Yoga; Maulana Ayassy, Bayu; Hidayatullah, Cahyo; Putra Sinaga, Frans; Turmudi Zy, Ahmad
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 2 (2025): JATI Vol. 9 No. 2
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i2.12851

Abstract

Keamanan data menjadi perhatian utama di era digital, terutama pada sistem POS berbasis web restoran yang sering kali menyimpan informasi sensitif seperti kata sandi pengguna. Dalam penelitian ini, algoritma Caesar Cipher digunakan sebagai metode enkripsi untuk meningkatkan keamanan data pada sistem kasir berbasis web. Algoritma ini menawarkan solusi sederhana namun memiliki keterbatasan pada jumlah kunci yang rentan terhadap serangan brute force dan analisis frekuensi. Hasil penelitian menunjukkan bahwa Caesar Cipher dapat memberikan perlindungan dasar dalam lingkungan dengan kebutuhan keamanan rendah. Selain itu, studi ini mengusulkan pengembangan lebih lanjut dengan kombinasi algoritma modern seperti AES dan hashing SHA-256 untuk meningkatkan keamanan. Penemuan ini memberikan wawasan baru dalam menciptakan sistem keamanan informasi yang lebih kuat di masa mendatang.
ANALISIS METODE AFFINE CIPHER DENGAN KEYSTREAM ACAK UNTUK MENINGKATKAN KEAMANAN DATA DALAM SISTEM KRIPTOGRAFI Darmanto, Darmanto; Rifqi Aziz, Muhammad; Azmi Abdussyukur, Mohammad; Toga Junior Sinaga, Michael; Turmudi Zy, Ahmad
JATI (Jurnal Mahasiswa Teknik Informatika) Vol. 9 No. 2 (2025): JATI Vol. 9 No. 2
Publisher : Institut Teknologi Nasional Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/jati.v9i2.12894

Abstract

Pesatnya perkembangan teknologi komunikasi menimbulkan kebutuhan akan sistem keamanan data yang andal untuk melindungi informasi sensitif. Saat ini, pengiriman data melalui jaringan publik menghadapi risiko tinggi akibat ancaman keamanan yang semakin kompleks. Enkripsi menjadi solusi utama untuk menjaga kerahasiaan informasi, terutama dalam sistem yang melibatkan transmisi data sensitif. Penelitian ini mengimplementasikan metode Affine Cipher dalam sistem kriptografi untuk meningkatkan keamanan data. Algoritma ini dimodifikasi dengan menambahkan keystream berbasis seed acak guna mengurangi pola karakter berulang dalam ciphertext dan meningkatkan kompleksitas enkripsi. Pengujian menunjukkan bahwa sistem yang diusulkan efektif dalam menjaga integritas data serta memperkuat keamanan pesan terhadap serangan pihak tidak berwenang. Modifikasi ini memberikan kontribusi penting bagi pengembangan sistem keamanan data berbasis kriptografi, terutama dalam aplikasi yang membutuhkan tingkat kerahasiaan tinggi.
Co-Authors Abdillah, Syahbarudin Abdul Ghofir Agung Nugroho Agus Suwarno, Agus Ainur Rofieq Amali, Amali Anisa Anisa ARIF SUSILO Aureli Rahmadani, Debby Azmi Abdussyukur, Mohammad Azwa Dipani, Muhammad Chandra, Ahmad Alfian Darmanto Darmanto DHANI ARIATMANTO Edy Widodo Fauzan Gifari, Muhammad Halim Anshor, Abdul Hasbiallah, Muhammad Hidayatullah, Cahyo Isarianto Isarianto, Isarianto Mantona, Muhamad Risvan Maulana Ayassy, Bayu Maulana, Donny Muhamad Fatchan Muhammad Najamuddin Dwi Miharja Muhammad Rifa'i, Anggi Mustafanah, Alif Ndruru, Serius Pratama, Stephen Putra Sinaga, Frans Rifqi Aziz, Muhammad Septiani Ningrat, Nova Surojudin, Nurhadi Tambunan, Nicky Pascal Toga Junior Sinaga, Michael Tri Sasongko, Ananto Tyanshi Firli Maharani Vivie Zuliani Erikasari Wafha Zahra Mulqiya Wahyu Hadikristanto Wiwik Handayani Yumansyah, Qori Zulaeha