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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Ilmiah Universitas Batanghari Jambi Jurnal Teknovasi : Jurnal Teknik dan Inovasi Mesin Otomotif, Komputer, Industri dan Elektronika ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA JISTech (Journal of Islamic Science and Technology) JOURNAL OF SCIENCE AND SOCIAL RESEARCH INFOMATEK: Jurnal Informatika, Manajemen dan Teknologi Jurnal Mantik G-Tech : Jurnal Teknologi Terapan Journal of Applied Science, Engineering, Technology, and Education Community Development Journal: Jurnal Pengabdian Masyarakat Journal of Computer Networks, Architecture and High Performance Computing Jurnal Teknologi Informasi dan Komunikasi IJISTECH Infotech: Jurnal Informatika & Teknologi KLIK: Kajian Ilmiah Informatika dan Komputer Journal of Information Systems and Technology Research Jurnal Teknoif Teknik Informatika Institut Teknologi Padang ABDINE Jurnal Pengabdian Masyarakat Jurnal Ilmiah Sistem Informasi dan Ilmu Komputer International Journal of Science and Environment Jurnal Mahasiswa Ilmu Komputer Jurnal Pengabdian Masyarakat Cosmic Jurnal Teknik
Suhardi, Suhardi
Universitas Islam Negeri Sumatera Utara
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Journal : Jurnal Mantik

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Scheduling Subject used Genetical Algoritms (Case Studies: SMP Negeri 1 Delitua) Siti Afifah Siregar; Rakhmat Kurniawan R; Suhardi Suhardi
Jurnal Mantik Vol. 7 No. 4 (2024): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v7i4.4792

Abstract

It is known that the preparation of subject scheduling at SMP Negeri 1 Deli Tua has gone through a process that is less efficient and effective due to several long procedures such as dividing study hours, adjusting teaching hours, and allowing for similarities in teaching hours or clashes between teaching hours. A genetic algorithm is an optimization technique whose working method imitates the process of evolution and changes in genetic structure in living things. The research aims to apply genetic algorithms to the subject scheduling system at SMP Negeri 1 Delitua. Research was conducted at SMP Negeri 1 Deli Tua. This research has used a genetic algorithm using the roulette wheel method and a GUI (Graphic User Interface) created with PHP and MySQL. The research results show that the application of genetic algorithms in scheduling systems can make scheduling more accurate and in a shorter time, with a mutation probability of 3.6 = 4 genes
Data security using low bit encoding algorithm and rsa algorithm Ramadhan, Yusuf; Suhardi, Suhardi; Aditama, Yuda
Jurnal Mantik Vol. 8 No. 1 (2024): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v8i1.4945

Abstract

Ensuring the security of messages and information is paramount in today's digital era. This study proposes a combined approach using the RSA algorithm for cryptography and the Low Bit Encoding (LBE) algorithm for steganography to enhance security measures. The security process involves encrypting plaintext messages into ciphertext, which are then embedded into MP3 audio files as cover objects. Evaluation is conducted by measuring the Mean Square Error (MSE) and Peak Signal to Noise Ratio (PSNR) of the stego audio. Research findings indicate an MSE value of approximately 0.6 and a PSNR of 62.2 dB, indicating high-quality audio files. The integration of these algorithms offers a robust security level, ensuring effective message confidentiality. This research contributes to a deeper understanding of cryptography and steganography techniques in safeguarding sensitive information during digital communication
Co-Authors Abdul Halim Hasugian Aditama, Yuda Ahmad Fariz Fuady Aidil Halim Lubis Aidil Halim Lubis Aisyiyah, Siti R Nur Ali Darta Alviona Marsya Amelia Anwar, Mufti Husain Armansyah Armansyah Armansyah Daulay, Darisma Diah Ayu Anggraini Dwi Anggreny, Anggy Dwiky Oldi Amsyah Ega Yolanda Endah Avilia Chandra Erwin Nasution Filza Salsabila, Putri Fitriani Fitriani Gina Fadhila Harahap, Hotma Rizki Heri Santoso Ibnu Rusydi Ichsan Rafisyah Ilka Zufria Iskandar, Nabila La Saufa Yardha Maulana, Rexa Mhd Furqan Mhd Ikhsan Rifki Mhd. Furqan Muhammad Ikhsan Muhammad Luthfi Muhammad Siddik Hasibuan Namirah Yasmine Raudah Nela Meilani Pramudya, Farhan Amar Rakhmat Kurniawan R Rambe, Nia Sabrina Ridho Pardomuan, Mohammad Rizki Hasibuan, Indra Shabahal Khair, Herla Siagian, Qori Azmi Ayasy Silva Ukhti Filla Siregar, Muhammad Faisal Siregar, Rahmat Abdillah Nur Siti Afifah Siregar Surbakti, Miftah Hadi Yusuf Ramadhan Nasution