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Coding Jurnal Komputer dan Aplikasi
Article . 2016 . Peer-reviewed
Data sources: Crossref
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PENERAPAN KRIPTOGRAFI MENGGUNAKAN ALGORITMA KNAPSACK, ALGORITMA GENETIKA, DAN ALGORITMA ARNOLD’S CATMAP PADA CITRA

Authors: Martinus Dias Cucu Suhery Tedy Rismawan;

PENERAPAN KRIPTOGRAFI MENGGUNAKAN ALGORITMA KNAPSACK, ALGORITMA GENETIKA, DAN ALGORITMA ARNOLD’S CATMAP PADA CITRA

Abstract

Kriptografi tidak hanya dapat diterapkan pada data tulisan/teks, tetapi dapat juga diterapkan pada data yang berupa citra/gambar. Penelitian ini menerapkan kriptografi pada data yang berupa citra. Proses enkripsi dilakukan dua kali, yang pertama adalah untuk pembentukan kunci dengan menggunakan Algoritma Genetika dan Algoritma Knapsack. Kunci yang dihasilkan menjadi masukan dalam proses enkripsi yang kedua. Proses enkripsi yang kedua bertujuan untuk mengacak citra dengan menggunakan algoritma Arnold’s Catmap. Proses dekripsi juga dilakukan dua kali, dimana proses yang pertama adalah membentuk kunci dengan menggunakan Algoritma Genetika dan Algoritma Knapsack, yang akan menghasilkan kunci yang akan digunakan pada proses dekripsi. Proses dekripsi menggunakan Algoritma Arnold’s Catmap sehingga dihasilkan citra semula. Citra yang digunakan pada penelitian ini berekstensi png, jpeg, dan bmp. Hasil enkripsi dan dekripsi dapat disimpan dengan ekstensi citra png, jpeg, atau bmp sesuai keinginan dari pengguna aplikasi. Hasil pengujian kriptografi yang diterapkan pada citra berekstensi bmp dan png berhasil dengan baik, yaitu citra hasil dekripsi terlihat seperti citra semula. Namun pengujian terhadap citra yang berekstensi jpeg, hasil dekripsinya terdapat noise. Kata kunci: Algoritma Knapsack, Algoritma Genetika, Algoritma Arnold’s Catmap, kriptografi citra

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    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold