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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Semantik Jurnal Teknologi Informasi dan Ilmu Komputer Seminar Nasional Informatika (SEMNASIF) JOIV : International Journal on Informatics Visualization Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) JURNAL MEDIA INFORMATIKA BUDIDARMA JURNAL TEKNIK INFORMATIKA DAN SISTEM INFORMASI JURIKOM (Jurnal Riset Komputer) Aptisi Transactions on Technopreneurship (ATT) Building of Informatics, Technology and Science Journal Sensi: Strategic of Education in Information System Jurnal Sistem Komputer dan Informatika (JSON) Aiti: Jurnal Teknologi Informasi Jurnal Indonesia : Manajemen Informatika dan Komunikasi Jurnal Ilmiah Sains Magistrorum et Scholarium: Jurnal Pengabdian Masyarakat IT-Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Jurnal Indonesia : Manajemen Informatika dan Komunikasi Jurnal DIMASTIK
Theopillus J. H. Wellem
Universitas Kristen Satya Wacana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Physics Social Sciences Other

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Journal : Aiti: Jurnal Teknologi Informasi

 1 
Pembangkitan pola menggunakan konsep grup kertas dinding Yessica Nataliani; Theophilus Wellem; Ade Iriani
AITI Vol 18 No 1 (2021)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/aiti.v18i1.1-13

Abstract

Two-dimensional repetitive and symmetrical patterns are found in everyday life, such as in cloth motifs, decorative art, road pavement design, and floor tiles. The repetitive and symmetrical patterns are formed by geometric transformation, which comprises translation, rotation, reflection, and glide reflection. In mathematics, the study of repetitive patterns on a plane, formed by geometric transformations, belongs to the plane symmetry group. This plane symmetry group is often referred to as plane crystallographic group or wallpaper group that comprises 17 known patterns. The purpose of this research is to generate various patterns from a basic pattern by applying the concept from the wallpaper group. Furthermore, this research also identifies four cloth motifs and categorizes them to the wallpaper group. This research was conducted by: (1) determining and creating a basic pattern that will be used to form other patterns, (2) generating 17 patterns from the basic pattern based on the patterns in the wallpaper group, (3) identifying some existing motifs downloaded from the Internet and categorize them to the wallpaper group. The basic pattern used in this research is a spiral pattern. The results obtained from this research are the 17 different spiral motifs as well as the identification of four motifs obtained from the Internet to one of the 17 patterns of wallpaper group.
Perancangan Kriptografi Block Cipher berbasis Pola Dribbling Practice Rizky Restu Fauzi; Theophilus Wellem
AITI Vol 18 No 2 (2021)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/aiti.v18i2.158-172

Abstract

Block cipher is a technique in modern cryptography used to encrypt/decrypt digital data by dividing messages into data blocks and then encrypting or decrypting the data on a block-by-block basis. This study aims to design a block cipher based on a dribbling practice pattern as a new variation of existing block ciphers. The principles of block cipher design, such as substitution box, XOR operation, Feistel network, and key transposition, are applied in designing this block cipher. The avalanche effect (AE) value and the correlation value between plaintext and ciphertext are used as the metrics in evaluating the designed block cipher. The testing results show that an AE value of 54.687% is achieved when a character in the input plaintext changes. Therefore, there are significant changes in the resulting ciphertext when the input plaintext is slightly changed. Furthermore, the correlation value between plaintext and ciphertext is 0.247 (low correlation). As a result, it is hard to obtain the plaintext back based on the ciphertext result. These values are better compared to some previous studies available.
Co-Authors Ade Iriani Adi Setiawan Adriyanto Juliastomo Gundo Agustinus Fritz Wijaya Antika Lorien Anton Hermawan Arthur, Christian Atik Setyanti, Angela Bentar Priyopradono Danang Maulana Ikhsan Daniawan, Benny Daniel D Kameo Danny Manongga Darmawan Utomo Donny Priyadi Edi Suharyadi Erwien Christianto Fauzan, Rafi Ardhan Fra Arsandy Kusuma Sejati Fransiscus Bryan Prasetio Gabriel Gracia Salindeho Hanita Yulia Henderi . Hendry Hendry . Hindriyanto Dwi Purnomo Ignatius Agus Supriyono Ikhsan, Danang Maulana Ilham Hizbuloh Imanuel Susanto Indrastanti Ratna Widiasari Irwan Sembiring Ivanna Kristianti Timotius Iwan Setyawan Jonathan Putera Perdana Juliastomo Gundo, Adriyanto Krismiyati krismiyati krismiyati Kristoko Dwi Hartomo Lasso, Aldi Luis Geraldo Mauboy Maulana, Aldias Henry Muhamad Yusup Pantow, Prayogo Pangestu Piter Wijaya Prakoso, Alvian Dafa Priatna , Wowon Putra, Yeheskiel Mandala Rafi Ardhan Fauzan Rafly Fernanda Rizky Restu Fauzi Roland Tumbelaka Palar Sri Yulianto Joko Prasetyo Suharyadi Sutarto Wijono Tintien Koerniawati Valen Brata Pranaya Wahab, Nur Haliza Abdul Weku, Winsy C.D Yeheskiel Mandala Putra Yessica Nataliani Yonas Juniantiko Putro