Kriptografi visual

Gambar adalah kombinasi antara garis, tiitk sehinga menciptakan suatu objek. Pengolahan gambar dengan citra digital.[1] Citra digital biasanya berbentuk pixel-piixel. Format gambar adalah seperti bitmap.[2] Bitmap adalah jaring persegi panjang yang berbentuk pixel. dan setiap pixel berisi warna dan nilai.

Teknik pengamanan yang dipakai adalah mengunakan teknik kriptografi.[3] pada dasarnya ilmu kriptografi adalah ilmu untuk menyembunyikan suatu pesan sehinga pesan tersebut terjaga keamanan. komponen kriptografi terdiri dari enkripsi dan deksripsi, chipertext, key, pliantek dan pesan.[4]

Algoritma digunakan

Banyak algortime untuk pengamanan, salah satu algoritme yang populer adalah algortima RSA.[5] algorritma RSA dianggap aman.dimana tingkat kesulitan Pemfaktoran bilangan non-prima menjadi factor primanya.

Berikut besaran yang digunakan adalah:[6]

p dan q adalah bilangan prima

Keamanan algoritme RSA terletak pada pemfactoran bilngan yang bukan prima menjadi bilangan prima, dengan r = p * q . jika r berhasil difaktorkan. maka dapat dihitung . dan SK didapat dari PK.

Referensi

  1. ^ bayu, aditya (2019-05-27). "IMPLEMENTASI BINERISASI CITRA MENGGUNAKAN TEKNIK THRESHOLD PADA PENGOLAHAN CITRA DIGITAL TUMBUHAN BERACUN DI INDONESIA". dx.doi.org. Diakses tanggal 2019-06-28. 
  2. ^ Burstein, Leonid, ed. (2013-12-07). "Primary MATLAB® for Life Sciences: Guide for Beginners". doi:10.2174/97816080580441130101. 
  3. ^ Hendartho, Dony (2018-03-06). "ANALISIS IMPLEMENTASI SISTEM MANAJEMEN MUTU ISO 9001:2008 PADA SEKOLAH TINGGI ILMU ADMINISTRASI MANDALA INDONESIA". Transparansi Jurnal Ilmiah Ilmu Administrasi. 6 (2): 124–138. doi:10.31334/trans.v6i2.37. ISSN 2622-0253. 
  4. ^ Hariadi, Selamet (2012-03-21). "PENGGUNAAN SPOOFING DAN SSH FORWARDING UNTUK KEAMANAN SERTA FILTRASI DATA PADA JARINGAN". MATICS. doi:10.18860/mat.v0i0.1558. ISSN 2477-2550. 
  5. ^ Jaswadi, Pak; Krisna, Ram; Kasijatno, Kasijatno; Jakeman, Simon Victor John (2010). "Bringing New Life To Old Fields". SPE Asia Pacific Oil and Gas Conference and Exhibition. Society of Petroleum Engineers. doi:10.2118/133910-ms. 
  6. ^ Arief, Ashari; Saputra, Ragil (2016-06-30). "Implementasi Kriptografi Kunci Publik dengan Algoritma RSA-CRT pada Aplikasi Instant Messaging". Scientific Journal of Informatics. 3 (1): 46–54. doi:10.15294/sji.v3i1.6115. ISSN 2460-0040. 

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