APLIKASI KRIPTOGRAFI KOMPOSISI ONE TIME PAD CIPHER DAN AFFINE CIPHER

Ivan Luckiyana Firdaus, Rini Marwati, Ririn Sispiyati

Abstract


ABSTRAK. Kriptografi one time pad cipher memiliki kelemahan pada
kurangnya keefisienan dalam pembentukan dan pengiriman kuncinya jika
menggunakan cara manual untuk menentukan kuncinya. Salah satu cara
agar pembentukkan kuncinya lebih mudah dengan menggunakan aturan
barisan Fibonacci terhadap teks asli(plaintext) sehingga menghasilkan
kunci untuk one time pad cipher. Untuk lebih mempersulit pemecahan, one
time pad cipher dikomposisikan dengan affine cipher yang merupakan
dasar dari algoritma kriptografi klasik yang menggunakan metode
subtitusi. Skripsi ini membahas bagaimana pengkonstruksian kunci untuk
one time pad cipher dan pembuatan program aplikasi komposisi one time
pad cipher dan affine cipher. Hasil dalam penulisan skripsi ini berupa
program aplikasi untuk mempermudah enkripsi dan dekripsi komposisi one
time pad cipher dan affine cipher yang dibuat menggunakan bahasa
pemrograman Delphi 7.0.

Kata kunci: program aplikasi, one time pad cipher, affine cipher.

ABSTRACT. One time pad cipher has a weakness on generating it’s key.
There are many ways to cover it’s weakness,such as using Fibonacci series
formula on the plaintext to generate one time pad cipher’s key. One time
pad cipher is an encryption technique that difficult to be cracked. One way
for a cipher to become more difficult to resolve is by composing two
encryption technique. One time pad cipher which is difficult to be cracked
will be composed by affine cipher which is the base of classic cryptography
whose using substitution methode. This paper aimed to discuss how to
generate one time pad cipher’s key with Fibonacci series formula and how
to make application program crptography composition of one time pad
cipher and affine cipher. And the result of this paper is a program
application cryptography composition of one time pad cipher and affine
cipher using Borland Delphi 7.0, which made encrypting and decrypting
became easier.

Keywords: application program, one time pad cipher, affine cipher.


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DOI: https://doi.org/10.17509/jem.v5i2.9597

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Copyright (c) 2018 Ivan Luckiyana Firdaus, Rini Marwati, Ririn Sispiyati



  

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