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Article . 2017 . Peer-reviewed
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IMPLEMENTASI KRIPTOGRAFI KLASIK PADA KOMUNIKASI BERBASIS TEKS

Authors: M Miftakul Amin;

IMPLEMENTASI KRIPTOGRAFI KLASIK PADA KOMUNIKASI BERBASIS TEKS

Abstract

Kemajuan di bidang komunikasi data dan jaringan komputer telah memungkinkan ribuan orang untuk melakukan komunikasi dengan beragam teknologi perangkat keras dan perangkat lunak. Di sisi lain terdapat ancaman yang membayangi kemajuan tersebut, yaitu aspek keamanan data dan informasi. Sistem keamanan data diperlukan untuk melindungi data dan informasi yang ditransmisikan melalui jaringan komunikasi. Salah satu mekanisme untuk menyediakan layanan keamanan data adalah teknik kriptografi. Dalam kriptografi, data yang dikirimkan melalui jaringan akan disamarkan sedemikian rupa dengan teknik enkripsi sehingga kalaupun data itu bisa dibaca maka tidak bisa dimengerti oleh pihak yang tidak berhak. Data yang akan dikirimkan dan belum mengalami penyandian dikenal dengan istilah plaintext, dan setelah disamarkan dengan suatu cara penyandian, maka plaintext ini akan berubah menjadi ciphertext. Sebelum adanya komputer, kriptografi dilakukan dengan algoritma berbasis karakter. Terdapat sejumlah algoritma yang tercatat dalam sejarah kriptografi, algoritma-algoritma tersebut sering diistilahkan dengan algoritma kriptografi klasik. Pada penelitian ini diimplementasikan kriptografi klasik sebagai metode untuk melakukan proses enkripsi dan dekripsi data teks yang dikirimkan melalui aplikasi chat. Dari proses pengujian diperoleh bahwa proses enkripsi dan dekripsi dapat menjaga kerahasiaan data

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    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).
    1
    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.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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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!
1
Average
Average
Average
gold