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All Journal Jurnal Simantec JIKO (Jurnal Informatika dan Komputer)
Muhammad Fajar Jati Permana
Universitas Pendidikan Indonesia
Computer Science & IT

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Implementation of Least Significant Bit Steganography with Caesar Cipher Layout Dvorak web-based Ridhwan Nadif Kurnia; Al Diras Pradiptha; Muhammad Fajar Jati Permana; Kimberly Alfa Dipradja; Rizki Afrizal; Deden Pradeka; Zahra Khaerunnisa
Jurnal Simantec Vol 14, No 1 (2025): Jurnal Simantec Desember 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/simantec.v14i1.28794

Abstract

Secure data communication is an essential requirement in the digital age, especially in the exchange of confidential information. One of the main problems is the potential for eavesdropping by unauthorised parties who can access open messages. To overcome this, this research aims to develop a website-based system that combines the Least Significant Bit (LSB) method steganography technique and the Caesar cipher method cryptography with the Dvorak keyboard layout to increase data security. The research method used is prototype method with the stages of concept formulation, prototype design, and continuous evaluation. The system was tested by inserting the word ‘TEKKOM’ into a digital image and measuring the quality using Mean Squared Error (MSE) and Peak Signal-to-Noise Ratio (PSNR). The test results show an MSE value of 0.0001466049 and PSNR of 86.47 dB, which means that the visual quality of the image does not decrease significantly and the message is successfully inserted and extracted without errors. The Dvorak keyboard layout adds a layer of security through uncommon input patterns, making it difficult for outsiders to analyse. Thus, the system is able to provide a secure, efficient, and practical solution for web-based information hiding without the need for a database and is still user-friendly.Keywords: Dvorak, Steganography, Caesar Cipher, Least Significant Bit, Website
Pengembangan Website Interaktif Untuk Memfasilitasi Minat Kebersihan Kelas di Kalangan Siswa Menengah Pertama Wildan Tisna Surya Nugraha; Muhammad Fajar Jati Permana; Firda Rosela Sundari; Najwa Ikhsaniyah; Hammam Abdurrahman; Deden Pradeka; Anugrah Adiwilaga
JURNAL INFORMATIKA DAN KOMPUTER Vol 9, No 2 (2025): Juni 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat - Universitas Teknologi Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26798/jiko.v9i2.1340

Abstract

AbstrakPenelitian ini bertujuan untuk meningkatkan kualitas kebersihan kelas di lingkungan sekolah melalui implementasi website interaktif. Kebersihan kelas yang sering terabaikan memiliki dampak signifikan terhadap kesehatan dan konsentrasi siswa, sehingga mempengaruhi efektivitas pembelajaran. Oleh karena itu, penelitian ini mengembangkan sebuah website menggunakan model pengembangan interaktif Waterfall yang meliputi tahapan analisis kebutuhan, desan sistem, implementasi, danpengujian. Website ini dirancang untuk memudahkan penjadwalan piket, memberikan informasi kegiatan, dan memotivasau siswa melalui fitur Leaderboard. Implementasi menggunakan framework Laravel memastikan struktur yang kokoh dan fleksibel. Pengujian dengan metode Blackbox menunjukkan bahwa setiap fitur berfungsi dengan baik, meskipun perlu pengujian lebih lanjut dengan lebih banyak pengguna. Hasil penelitian ini diharapkan dapat memberikan solusi inovatif untuk mengatasi masalah kebersihan di sekolah, meningkatkan kesejahteraan siswa, dan mendukung proses pembelajaran yang lebih efektif.
Co-Authors Adiwilaga, Anugrah Al Diras Pradiptha Deden Pradeka Firda Rosela Sundari Hammam Abdurrahman Kimberly Alfa Dipradja Najwa Ikhsaniyah Ridhwan Nadif Kurnia Rizki Afrizal Wildan Tisna Surya Nugraha Zahra Khaerunnisa