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All Journal JURNAL MEDIA INFORMATIKA BUDIDARMA Pendas : Jurnah Ilmiah Pendidikan Dasar 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 JURNAL MAHAJANA INFORMASI JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Journal of Computer System and Informatics (JoSYC) Indonesian Journal of Data and Science Jurnal Pengabdian kepada Masyarakat Nusantara JiTEKH (Jurnal Ilmiah Teknologi Harapan) IJISTECH Bulletin of Computer Science Research Jurnal Saintekom : Sains, Teknologi, Komputer dan Manajemen Jurnal ABDIMAS Budi Darma ORAHUA : Jurnal Pengabdian Kepada Masyarakat Informatics Berbakti
Rivalri Kristianto Hondro
Universitas Budi Darma, Medan
Religion Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Journal : Journal of Computer System and Informatics (JoSYC)

 1 
Modifikasi Platform Kunci Algoritma Playfair Untuk Meningkatkan Nilai Confusion Pada Ciphertext Rivalri Kristianto Hondro
Journal of Computer System and Informatics (JoSYC) Vol 1 No 2 (2020): Journal of Computer System and Informatics (JoSYC) - Februari 2020
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

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Abstract

Cryptography is the science of "original manuscript" encoding techniques, called plaintext terms, the arrangement of which is encrypted using a key so that it becomes "random text that is difficult to read" or referred to as ciphertext. By doing this process, someone who does not have a decryption key cannot read the original data. The cryptographic application technique is often also called the Algorithm or Cipher, one of the cryptographic algorithms discussed in this article is the Playfair Algorithm. Modifications are made to the key table that is owned by the Playfair Algorithm so that there are additional characters besides letters, there are numbers and symbols. The result to be achieved is from the modification of the Playfair algorithm that can be applied to the encryption process so as to produce a ciphertext that has a confusion value. but it can also be applied to the decryption process so as to produce an understandable plaintext
Sistem Pendukung Keputusan Pemilihan Jaksa Terbaik dengan Menerapkan Metode MABAC (Studi Kasus: Kejaksaan Negeri Medan) Bagus Nur Ihwa; Natalia Silalahi; Rivalri Kristianto Hondro
Journal of Computer System and Informatics (JoSYC) Vol 1 No 4 (2020): August 2020
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

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Abstract

The selection of the Medan District Attorney as part of the Attorney General's Office of the Republic of Indonesia carried out several mutations of the chief prosecutor who were taken by manually calculating performance scores. The criteria taken in the evaluation are orientation, service, integrity, commitment, discipline, and cooperation aspects require a decision support system (SPK) to accelerate and facilitate decision making. Decision support systems are used to help decision making in an organization to facilitate decision making. Where no one knows for sure how decisions should be made. One of the methods used in this decision support system is MABAC. Decision support system to assist local governments in the selection of the best prosecutors in accordance with specified conditions and criteria. The MABAC method is one of a set of decision support system methods that are included in the multi criteria decision making method (MABAC) group
Co-Authors Alwin Fau Amatilah Nasution Anda Yanny Andri, Ricky Ardi Kusuma Azlan Bagus Nur Ihwa Bister Purba Cici Oktaviani Dariusu Zebua Dennita Pasaribu Dermawan Lumban Toruan Dito Putro Utomo Efori Buulolo Erdina Daniati Simanjuntak Fadlina Fince Tinus Waruwu Ginting, Suranta Bill Fatric Guidio Leonarde Ginting Hanna Tresia Silalahi Harefa, Misael Oktavianda Hasibuan, Alima Hakkon Hendro Sutomo Ginting Hery Sunandar Hts, Dedek Indra Gunawan Imam Saputra Imam Saputra Imam Saputra Kenedi Tampubolon Kennedi Tampubolon Khairun Nathassa Kusnadi Lince Tomoria Sianturi Matanari, Supriyanti Minarni Pratama Muhammad Sayuthi Muhammad Syahrizal Muhammad Zainuddin Nasib Marbun Natalia Silalahi Ndruru, Eferoni Nelly Astuti Hasibuan Paulus Lubis, Paulus Peter Jaya Negara Simanjuntak Pratama, Minarni Putri Ramadhani Rabli Hari Mulia Reka Safarti Rian Syahputra Ronda Deli Sianturi Rosmaida Rosmaida Saragih, Windi Sri Utami Sari, Tetti Purnama Sari, Tetti Purnama Sarwandi Sri Agustiani Br Siburian Sri Wulan Sri Wulan, Sri Suginam Sumiati Sumiati Supriyanti Matanari Surya Darma Nasution Sylvia Situmorang T. Razeki Aditya Syahputra T. Rezka Aditya Syahputra Taronisokhi Zebua Torong, Adi Putra S. Wosvo Aritonang Wulan Ramadhani Yana, Gusri Indah Yusman Zalukhu Zalukhu, Yusman Zumrotul Aqobah Hsb