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All Journal Techno Xplore : Jurnal Ilmu Komputer dan Teknologi Informasi Jurnal Teknik Informatika (JUTIF)
Hilda Yulia Novita
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Computer Science & IT

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ANALYSIS AND IMPLEMENTATION OF AES-128 ALGORITHM IN SUKAHARJA KARAWANG VILLAGE SERVICE SYSTEM Fariz Duta Nugraha; Kiki Ahmad Baihaqi; Hilda Yulia Novita; Siregar, Amril Mutoi
Jurnal Teknik Informatika (Jutif) Vol. 5 No. 3 (2024): JUTIF Volume 5, Number 3, June 2024
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2024.5.3.2038

Abstract

Data security in databases is needed in the industrial era 4.0 to prevent attacks and unwanted things from happening, one of the biggest cases that has been widely reported is data leakage, in this study aims to implement and analyze the Advanced Encryption Standard Algorithm, one of the data security algorithms with a block chiper type that has 4 transformations (SubByte, ShiftColumn, MixColumn, AddRoundKey), or what we usually call the Cryptography method. Cryptography is a method that is often used to secure important data in databases, in this article the Advanced Encryption Standard Algorithm is used to secure citizen data and family card data in the Sukaharja Karawang Village service system. The method in this research is the observation method, the data is obtained from each head of the neighborhood in Sukaharja Karawang Village with the permission of the head of Sukaharja Karawang Village. Citizen data and family cards were encrypted and analyzed for resource requirements in storing encryption results and time in returning and displaying original data. The results of the analysis obtained the amount of resources required 1.5MB to store family card data, which before encryption required 352KB. Citizen data requires a resource of 6.5MB, before encryption it takes 1.5MB. As for the AES resilience test stage using the Bruteforce attack method with the help of Hashcat software version 6.2.5 with 4 trial processes, One encrypted address data was taken for this test, but out of 4 attempts none of them showed that the data could be cracked.
Implementation of Finite State Automata in Grocery Store Application Hanny Hikmayanti Handayani; Hilda Yulia Novita; Cici Sukmawati; Youbel Jansen; Jasmin Putri
Techno Xplore: Journal of Computer Science and Information Technology Vol. 11 No. 1 (2026): Techno Xplore: Jurnal Ilmu Komputer dan Teknologi Informasi
Publisher : Informatics Engineering, Faculty of Engineering and Computer Science, Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/fkhemv84

Abstract

Toko sembako merupakan bentuk ritel kebutuhan pokok yang sangat dekat dengan aktivitas masyarakat, namun proses transaksi pada toko tradisional masih kerap menimbulkan kendala seperti antrean, pemilihan barang yang memakan waktu, serta ketidakefisienan saat toko ramai. Artikel ini bertujuan merancang alur transaksi aplikasi toko sembako berbasis pemodelan Finite State Automata (FSA) untuk membantu pelanggan melakukan pemesanan lebih cepat dan membantu pemilik toko menyiapkan pesanan secara terstruktur. Metode yang digunakan adalah pemodelan FSA dengan pendekatan Non-Deterministic Finite Automata (NFA), dimulai dari identifikasi masalah, penyusunan himpunan state dan simbol input, perancangan fungsi transisi, pembuatan state diagram menggunakan Lucidchart, serta pembuatan konsep desain antarmuka (UI) menggunakan Figma. Hasil perancangan menghasilkan NFA dengan 12 state (q0–q11) dan 12 simbol input (a–l) yang merepresentasikan proses mulai transaksi, pemilihan barang (misalnya minyak, gula, telur, tepung, mie instan, beras), pengelolaan keranjang, hingga pemilihan metode pembayaran (tunai atau debit/QRIS) sampai transaksi selesai. Simulasi alur dan rancangan UI menunjukkan bahwa FSA/NFA dapat digunakan sebagai model formal untuk mendeskripsikan dan mengendalikan alur transaksi aplikasi toko sembako secara jelas, konsisten, dan mudah dikembangkan menjadi implementasi aplikasi nyata
Co-Authors Baihaqi, Kiki Ahmad Cici Sukmawati Fariz Duta Nugraha Hanny Hikmayanti Handayani Jasmin Putri Siregar, Amril Mutoi Youbel Jansen