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All Journal Jurnal Ilmu Komputer Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JURNAL MEDIA INFORMATIKA BUDIDARMA J-SAKTI (Jurnal Sains Komputer dan Informatika) IJISTECH (International Journal Of Information System & Technology) KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) The IJICS (International Journal of Informatics and Computer Science) JURIKOM (Jurnal Riset Komputer) Building of Informatics, Technology and Science Islam Universalia : International Journal of Islamic Studies and Social Sciences REMIK : Riset dan E-Jurnal Manajemen Informatika Komputer JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) Jurnal Sistem Komputer dan Informatika (JSON) TIN: TERAPAN INFORMATIKA NUSANTARA Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) IJISTECH JPM: JURNAL PENGABDIAN MASYARAKAT Journal of Informatics Management and Information Technology Journal of Social Responsibility Projects by Higher Education Forum Jurnal Teknisi J-SAKTI (Jurnal Sains Komputer dan Informatika) Bulletin of Information Technology (BIT) KETIK : Jurnal Informatika ORAHUA : Jurnal Pengabdian Kepada Masyarakat
Surya Darma Nasution
Universitas Budi Darma, Medan
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Journal : Journal of Computer System and Informatics (JoSYC)

 1 
Penerapan Algoritma Rice Codes dan Algoritma Rivest Shamir Adleman (RSA) Untuk Kompresi dan Pengamanan Teks Pada Aplikasi Chatting Vify Ernanda; Surya Darma Nasution; Fince Tinus Waruwu
Journal of Computer System and Informatics (JoSYC) Vol 1 No 3 (2020): Journal of Computer System and Informatics (JoSYC) - May 2020
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

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Abstract

With the development of information in this day and age chat plays an important role in all aspects of human life. Where chat as a communication tool that can help communicate without any time restrictions and is free from obstacles. But in communicating through chat applications can not be free or as free in communicating as usual. Where chat has a predetermined number of bits, so that in sending text messages the chat application cannot be at once or in one delivery but in multiple transmissions. Therefore the chat application requires a compression where the text messages to be sent through the chat application do not take a long time and do not send several times. It is enough to send only one text message to those addressed. But sometimes text messaging is not only a problem in many or few text messages to be sent there are other obstacles in sending text messages that must be overcome. Text messages that have been sent to those intended, sometimes the text messages have changed not at its disposal or not the same as what was sent. Therefore the chat application is in need of security on the chat application which can secure text messages to be sent to the intended destination without changing one bit. Chat applications provide solutions to communication problems because they are hampered by distance and time. Chat application provides convenience in communicating chat to several people who have great distances by applying the Rice Codes and Rivest Shamir Adleman (RSA) algorithm to chat applications that are designed using Miscrosoft Visual Basic 2008 programming language as a means of compressing and securing text messages.
Penerapan Algoritma Ternary Comma Code Pada Aplikasi Kompresi File Gambar Nurma Ningsih; Surya Darma Nasution; Taronisokhi Zebua
Journal of Computer System and Informatics (JoSYC) Vol 1 No 3 (2020): Journal of Computer System and Informatics (JoSYC) - May 2020
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

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Abstract

Since the discovery of a tool to capture an image (image) in the form of a camera making technological developments not only focus on the tools but also must focus on where the data is stored. The need for storage media is something that is needed in every communication tool. Data and information communication systems are not only in the form of text but can also be in the form of images, videos and audio. Image file size that is relatively larger compared to text files is one of the causes of the amount of memory used for storing image files. The size of the image file can also cause the length of time to send the image file. Image file compression process is one way that can be done to overcome the problem of image file size. Image compression is an attempt to minimize the file size or bytes of a graphic file without reducing the quality of existing images. A certain amount of storage, such as disk space or memory, makes it possible to reduce the image file size. Many algorithms that can be used to compress image file sizes include the ternary comma code algorithm that can help reduce image file sizes. The ternary comma code algorithm has a faster time space compared to other algorithms.
Co-Authors Abdul Halim Lubis Abdul Halim Lubis Abdul Karim Abdul Khair Tarigan Abu Sani Tanjung Afriany, Joli Ahmad Qorib Alwin Fau Amir Maniur Silitonga Andsyah Putera Utama Siahaan Bister Purba Cici Mulya Sari Daulay, Nur Hasanah Depika, Dwi Ayu Dikki Handoko Dito Putro Utomo Efori Buulolo Ega Yuliani Elvia Hariska Erna Verawati Ervina, Nina Fadlina Fince Tinus Waruwu Fitri Ruth Diani Br Simangunsong Fitri, Juli Guidio Leonarde Ginting Halimah Ani Harika Fitri Sinurat Hasibuan, Nelly Agustina Hikma Widayu Hotmoko Tumanggor Hutabarat, Sumiaty Imam Saputra Imam Saputra Imam Saputra Irliansyah, Muhammad Rio Joshua Feliex D. Sirait Kurnia Ulfa Maharani Maharani, Maharani Mardiana Haloho Mesran, Mesran Muhammad Syahrizal Muhammad Wirza Pratama Agatmadja Murdani Murdani, Murdani Natalia Silalahi Natalia Silalahi Natalia Silalahi, Natalia Nelly Astuti Hasibuan Nilmah Nilmah Nurdiyanto, Heri Nurma Ningsih Pane, Latifah Hanum Pane, Latifah Hanum Pramadi, Agus Adi Pratiwi, Rizka Dwi Puji Lestari Purba, Bister Putri Ramadhani Putri Ramadhani Rian Syahputra Rivalri Kristianto Hondro Rizky, Nadia Fariza Ronda Deli Sianturi S Sunaryo Saidi Ramadan Siregar Saparuddin Siregar Sari, Tetti Purnama Sari, Tetti Purnama Sianipar, Fitri Nur Indah Sari Sinta M. Panjaitan Sirait, Joshua Feliex D. Siti Nurhabibah Hutagalung Sri Wahyuni Sri Wanti Nasution Suginam Suginam Sukma Hakiki Silitonga Sunaryo, S Sutiksno, Dian Utami Syukur Novertiani Gulo Tari, Ratiya Taronisokhi Zebua Tri Handa Mirza Ulfa, Kurnia Vify Ernanda William Ramdhan Yuhandri Yuhandri, Yuhandri