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All Journal JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) JSAI (Journal Scientific and Applied Informatics) JOURNAL OF INFORMATION SYSTEM MANAGEMENT (JOISM) JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) TIN: TERAPAN INFORMATIKA NUSANTARA Journal of Computer Networks, Architecture and High Performance Computing Journal of System and Computer Engineering Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Journal Automation Computer Information System (JACIS) Fahma : Jurnal Informatika Komputer, Bisnis dan Manajemen
Prabowo, Tito
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Journal : Journal of System and Computer Engineering

 1 
Hill Cipher-Based Visual Cryptography for Copyright Protection of Images Using Flexible Matrix Keys Mafula, Veradella Yuelisa; Fauzan, Abd. Charis; Prabowo, Tito; Ramadhan, Muhammad Rizky
Journal of System and Computer Engineering Vol 6 No 1 (2025): JSCE: January 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i1.1634

Abstract

The widespread distribution of digital images on the internet has diminished the copyright protection associated with them. In some cases, copyrighted and economically valuable digital images should not be modified or distributed without permission, as altering the original image can harm its owner. This violation is common, but many internet users are unaware of it. The goal of this research is to protect intellectual property rights of digital images using visual cryptography based on the Hill Cipher algorithm with matrix key flexibility. Hill Cipher is chosen for its ability to encrypt data in blocks, making it more secure than classical cryptographic algorithms that encrypt data individually. Visual cryptography is used to secure digital images through encryption and decryption. Encryption scrambles the image, while decryption restores it. The research method involves collecting digital image datasets, preprocessing, Hill Cipher encryption, and decryption. Key flexibility includes matrix keys of 2x2, 3x3, and 4x4 to enhance security. This research has demonstrated the effectiveness of the Hill Cipher algorithm in protecting digital images through encryption and decryption processes with flexible matrix keys of size 2x2 and 3x3. The results of the experiments, including encryption and decryption using both matrix sizes, have been thoroughly analyzed with respect to various cryptographic metrics: histogram analysis, energy, entropy, and running time.
Penentuan Penerima Beasiswa Sekolah Berbasis Visualisasi Graph Database Menggunakan Metode Analytical Hierarchy Process (AHP) Khasanah, Walidatul Isna; Fauzan, Abd. Charis; Prabowo, Tito
Journal of System and Computer Engineering Vol 4 No 2 (2023): JSCE: Juli 2023
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v4i2.892

Abstract

Banyak masyarakat kalangan menengah yang tidak mampu memberikan biaya pendidikan anaknya mencapai 9 tahun. Di sekolah terdapat program pemberian beasiswa PIP, namun sistemnya masih dijalankan secara manual yang menyebakan penyaluran beasiswa kurang tepat. Hal tersebut dikarenakan pihak yang diberi kepercayaan untuk menentukan beasiswa melihat kriteria-kriteria masih terpisah dan juga dipengaruhi calon penerima beasiswaa yang jumlahnya cukup banyak. maka dibutuhkan sistem yag bisa membantu sekolah dalam mengambil keputusan berdasarkan kriteria. Graph database sendiri bisa diartikan sebagai suatu model basis data yang didalamnya berisi node, relasi dan property. IMetode iAHP imerupakan isalah isatu imodel ipendukung ikeputusan, instrumen iutamanya iadalah hirarki ifungsional, dan iinput iutamanya iadalah ipersepsi imanusia. Dalam hal ini, mereka adalah ahli dalam menangani bab Beasiswa. Dalam AHP, prioritas terdiri dari berbagai pilihan yang berbeda dan berupa kriteria yang telah terstruktur sebelumnya, sehingga metode AHP dapat diandalkan. Jadi penentuan priioritas didasarkan pada proses yang hierarkis dan masuk akal. Pada penelitian ini penentuan bobot pada setiap kriteria seleksi beasiswa diambil dari yang paling tinggi nilainya yang akan diprioritaskan menjadi penerima beasiswa. Dengan perhitungan ini dihasilkan perankingan yag menunjukkan kualitas siswa yang layak atau belum layak sesuai dengan kriteria yang telah ditentukan. Dari perhitungan tersebut kemudian divisualisasikan kedalam graph database dengan Neo4j. Hasil dari visualisasi menunjukkan urutan ranking siswa yang layak menerima beasiswa dari yang tertinggi ke terendah.
Co-Authors Abd. Charis Fauzan Baqi, Utrodus Said Al Dewi Lestari FATRA NONGGALA PUTRA Harliana Harliana Harliana Harliana Huda, Muhamat Maariful Huda, Muhmat Maariful Kartika Dewi Khasanah, Walidatul Isna Lestariningsih Machfud, Imam Mafula, Veradella Yuelisa Maharani, Ayu Pramesti Muhammad Rizky Ramadhan Munir, M.Sirojul Nuha, M. Ulin Nuraeni, Septiya Rouf, M. Abd. Rusdian Yusron, Rizki Darma Syaifuddin, Akhmad Yuniar Alam, Yuniar Yusron, RDR