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All Journal Techno.Com: Jurnal Teknologi Informasi Explore: Jurnal Sistem Informasi dan Telematika (Telekomunikasi, Multimedia dan Informatika) Jurnal Transformatika JAIS (Journal of Applied Intelligent System) Teknosains : Jurnal Sains,Teknologi dan Informatika JAKA (Jurnal Akuntansi, Keuangan dan Auditing) Jurnal Citrakara Jurnal Informatika Polinema (JIP) Masyarakat Mandiri: Jurnal Pengabdian Dan Pembangunan Lokal Synergy In Economic & Business Management (SEBM)
Ichwan Setiarso
Universitas Dian Nuswantoro Kampus Kota Kediri
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Library & Information Science Other

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Journal : JAIS (Journal of Applied Intelligent System)

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Securing Digital Color Image based on Hybrid Substitution Cipher Moch Sjamsul Hidajat; Ichwan Setiarso
Journal of Applied Intelligent System Vol 4, No 2 (2019): Journal of Applied Intelligent System
Publisher : Universitas Dian Nuswantoro and IndoCEISS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/jais.v4i2.3380

Abstract

This study proposes securing digital color images with hybrid substitution cryptographic methods combined with the Vigenere and Beaufort methods. The hybrid process is carried out using the help of two randomly generated keys. The first key is a matrix with an 8-bits value and the second key is a matrix with a binary value. The binary key is used to determine the Vigenere or Beaufort process, while the 8-bit key is used for modulus operations based on the Vigenere or Beaufort algorithm. At the test stage used a standard image that has an RGB color channel as a dataset. The quality of the cryptographic method is measured by several measuring instruments such as MSE, PSNR, and SSIM to determine the quality of encryption visually and the perfection of decryption, besides that it is used Entropy, NPCR and UACI to determine the probability of encryption resistance and quality against differential attacks. The TIC TOC function is also used to measure the computing speed of the encryption and decryption process. Measurement results using all measuring instruments indicate that the proposed method has very satisfying results and has fast computing. Keywords – Cryptography, Substitution Cipher, Modulus Function, Encryption, Decryption, Image Transmission 
Co-Authors Ainun Muhtadin Aissiyah, Nasyatul Andi Hallang Lewa Aniza Chairani Aries Setiawan Bernadheta Novia Bonifacius Vicky Bonifacius Vicky Indriyono Choerul Umam Dedi Joko Purnomo Dian Prawitasari Ery Mintorini Gilang Rizky Gardianto Iqlima Zahari Ivan Putra Gemilang Karmila Khamadi Khamadi Lely Kusumaningrum Micail Dewasyah Putra Moch. Sjamsul Hidajat Natalinda Pamungkas Setiawan, Aries Widyatmoko Widyatmoko Wildan Mahmud Wisnu Pratama