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All Journal International Journal of Advances in Applied Sciences Scientific Journal of Informatics Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) JOIV : International Journal on Informatics Visualization Creative Information Technology Journal Techno Nusa Mandiri : Journal of Computing and Information Technology JURNAL ILMIAH INFORMATIKA JurTI (JURNAL TEKNOLOGI INFORMASI) Informatik : Jurnal Ilmu Komputer CSRID (Computer Science Research and Its Development Journal) Jurnal Teknologi Informasi dan Terapan (J-TIT) Informatika Indonesian Journal of Business Intelligence (IJUBI) IJIIS: International Journal of Informatics and Information Systems BERNAS: Jurnal Pengabdian Kepada Masyarakat Journal of Applied Data Sciences International Journal of Computer and Information System (IJCIS) Jurnal Teknologi Sistem Informasi dan Sistem Komputer TGD International Journal of Robotics and Control Systems Jurnal Pengabdian Masyarakat IPTEK Jurnal Ilmiah Edutic : Pendidikan dan Informatika SAGA: Journal of Technology and Information Systems Bangun Desa : Jurnal Pengabdian Masyarakat Jurnal Medika: Medika Journal of Intelligent Systems and Information Technology Jurnal Sistem Informasi dan Teknologi Informasi Inovate : Jurnal Ilmiah Inovasi Teknologi Informasi Jurnal Esensi Infokom : Jurnal Esensi Sistem Komputer dan Informasi
Pujo Hari Saputro
Sam Ratulangi University
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Journal : csrid computer science research and its development journal

 1 
Steganography Technique and Modification of Substitution Cipher Using ASCII Code and Fibonacci Sequences Pradana, Musthofa Galih; Saputro, Pujo Hari; Pamekas, Bondan Wahyu
CSRID (Computer Science Research and Its Development Journal) Vol 13, No 2 (2021): CSRID JUNI 2021
Publisher : Universitas Potensi Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22303/csrid.13.2.2021.77-86

Abstract

Cryptography is widely used to secure data and information so that it is not easily misused by parties who are not interested in the data. One type of cryptographic algorithm is Caesar Cipher and Vigenere Cipher. Both of these algorithms are classic cryptographic algorithms that need to be modified so that they become more optimal in the data security process. The first modification is to modify the Vigenere key using Fibonacci. In general, Vigenere Cipher will repeat the same keyword to complete the number of characters that are lacking so that the number of characters is the same as the number of characters in the plaintext. The second modification is to change or convert plaintext letters into ASCII letters so that the code is more difficult to solve. After the ASCII conversion process is done, the next results will be converted back in Hexa letters. In addition to the two modifications made, the steganography technique is also added by hiding the code behind the media in the form of images. Images that are sampled will be renamed and stored in different places.
Co-Authors A'yun, Riza Shinta Qurrota Aditiarno Manik Afny Rewur Ahmad Sulaiman Ahmad Sulaiman, Ahmad Airlangga, Gregorius Alamsyah - Allo, Yusi Meilany Kendek Amsy, M.R Mutawakkil Anas, Syukron Anisa Lia Viantina Arbiati Faizah Arbiati Faizah Arbiati Faizah Ardhyansyah Mualo Asep Rahman Audia Endondaya Kalambia Augusta Jannatul Firdaus Batubara, Saimarrasoki Dhina Puspasari Wijaya, Dhina Puspasari Djoko Budiyanto, Djoko Dyah Listianing Tyas, Dyah Listianing Dyah ListianingTyas Fajar Salinding Buntu Payuk Fatonah, Umti Fithratul Zalmi, Wahyuni Fransisca Joanet Pontoh Geraldy Kevin Gutama, Deden Hardan Henki Bayu Seta Herlino Nanang Izzatul Umami Jonathan Sitanggang Juan Natanel Makasunggal Julius Bata Kevin Leatemia Lazulfa, Indana Lintang Patria Lisa Wardiyana Luqmanul Hakim M Fadhel Nurmidin M.R Mutawakkil Amsy Makin, See Jong Michael Aristian Musthofa Galih Pradana Narulita Wulandari Nindy Irzavika Nita Silvianah Norris Elden Salassa Nugroho, Oskar Ika Adi Nur Arifin Nur Rachman Dzakiyullah Nurcahyo, Azriel Christian Olivia Maria Tumurang, Olivia Maria Paendong, Indah Prisilia Pamekas, Bondan Wahyu Pontoh, Fransisca Joanet Reinhard Komansilan Rendy Syahputra Reza Augusta J.F Riza Shinta Qurrota A'yun Rizal Sengkey Rizal Sengkey Rouzi, Kana Safrina Roy, Andi Rumui, Nelson Rusiyono, Ruwet Saimarrasoki Batubara Sari, Susi Nopita Silvianah, Nita Siti Zubaidah Sitompul, Bernard Jumadi Dehotman Sri Seprianto Maddusa Sugianto, Lai Ferry Susi Nopita Sari Syaiful Imron Tumurang, Olivia Maria Tumurang Umti Fatonah Viantina, Anisa Lia Victor Tarigan Wahyuni Fithratul Zalmi Wahyuni Fithratul Zalmi Wardiyana, Lisa Widoyoningrum, Sri Wulandari, Narulita