Improve Security Algorithm Cryptography Vigenere Cipher Using Chaos Functions

Triandi, Budi; Ekadiansyah, Evri; Puspasari, Ratih; Iwan, Lili Tanti; Rahmad, Fitrianto

doi:10.1109/citsm.2018.8674376

Cited by 17 publications

(8 citation statements)

References 4 publications

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“…Autokey Cipher merupakan pengembangan dari algoritma caesar dan viginere cipher [15]. Cara untuk melakukan proses pengamanan data sama seperti cipher dan viginere cipher, yang membedakannya adalah pengaturan kunci yang digunakan dalam proses enkripsi dan dekripsi [16].…”

Section: Pendahuluanunclassified

“…Penelitian lain telah melakukan kombinasi atbash cipher dan bitplane complexity segmentation dalam melakukan penyembunyian pesan didalam media citra [12]. Penelitian berikutnya telah melakukan peningkatan keamanan algoritma viginere cipher menggunakan chaos function [16]. Penelitian menggunakan autokey cipher yang dimodifikasi juga telah dilakukan dalam mengamankan data melalui perpaduan dengan caesar cipher [8].…”

Section: Pendahuluanunclassified

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Perpaduan Algoritma Kriptografi Atbash dan Autokey Cipher dalam Mengamankan Data

Fadlan

Rosmini

Haryansyah

2021

mib

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Data security is an important thing that must be done in the cyber era. The use of various kinds of digital technology in helping various human activities needs to be balanced with adequate data security. One of the ways that can be used in securing data is through cryptography. Atbash cipher is one of the cryptographic techniques used in securing data. However, this algorithm has a weakness because it only uses the process of reversing the position of the characters to be secured. This study proposes a cryptographic model that can maximize data security from the atbash cipher. The proposed model is a combination of the atbash cipher with the autokey cipher. The tests carried out on the proposed model have a 100% success rate, meaning that the encrypted message resulting from the proposed encryption process has been successfully restored to its original form through the proposed decryption process. The results of this study indicate that the atbash cipher cryptographic algorithm, combined with the autokey cipher algorithm can produce an encrypted message that is more difficult to crack.

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Section: Pendahuluanunclassified

Perpaduan Algoritma Kriptografi Atbash dan Autokey Cipher dalam Mengamankan Data

Fadlan

Rosmini

Haryansyah

2021

mib

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“…Tetapi tidak semua aspek keamanan informasi dapat diselesaikan dengan kriptografi. Kriptografi digunakan ketika suatu pesan dikirim dari suatu tempat ke tempat lain dengan mengubah isi pesan tersebut menjadi suatu kode yang tidak dapat dimengerti oleh pihak lain [6] [7]. Dalam kriptografi terdapat dua proses utama yaituenkripsi dan dekripsi.…”

Section: Metodologi Penelitian 21 Kriptografiunclassified

“…Sedangkan proses sebaliknya untuk mengubah teks sandi menjadi teks biasa disebut dekripsi. Proses enkripsi dan dekripsi membutuhkan mekanisme dan kunci tertentu [6]. Berikut adalah gambaran proses enkripsi dan dekripsi seperti ditampilkan pada gambar 1 Gambar 1 Enkripsi dan Dekripsi…”

Section: Enkripsi Dan Dekripsiunclassified

Modification of Vigenere Algorithm and One Time Pad Using Rivest Code 6 (RC6) Key Expansion

Budiman¹,

Paradise

2019

Compiler

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Information technology that is increasingly developing today must be balanced with information security. Good security can minimize the possibility of information being stolen by cryptanalysis, one way is by applying cryptographic techniques. Vigenere Cipher is a key symmetry algorithm that uses a substitution technique that uses two letters encoding the original message. Vigenere cipher and one time pad have disadvantages because they use short keywords and their use will be repeated. The key expansion used is part of the RC6 encryption algorithm combined with Vigenere and One time pad to cover the weaknesses of the algorithm. The purpose of this study is to produce new variations with the modification of the vigenere cipher algorithm and one time pad by adding a key expansion process and tested using the avalance effect. Test results conducted based on modifications can achieve a high level of avalance effect which is 51.76%

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“…Vigenère cypher is also one of the symmetric algorithms with the same encryption and decryption key so that it is like an algorithm another symmetric, one of the other weaknesses of the Vigenère cypher algorithm is the problem of key distribution [17]. It means that the vigenère cypher has a problem with how to send the decryption encryption key completely securely.…”

Section: Introductionmentioning

confidence: 99%

Improve The Security of The Vigenère Cypher Algorithm by Modifying the Encoding Table and Key

Sidik

2021

ijobas

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This investigation was conducted to move forward the security of the vigenère cypher calculation by tending to the key conveyance issue and the most key issue within the calculation if cryptoanalysts effectively got it. The working demonstrates employments a 512-bit Electronic Code Book (ECB). The essential key utilized was a 512-bit arbitrary key. The randomized encoding table was also generated by the Blum Blum Shub calculation employing a scrambler key. The RSA calculation was utilized to scramble 512-bits random keys and scrambler keys. It comes about to appear that the proposed calculation does not include a key dissemination issue. With a randomized encoding table, the 512-bits arbitrary key cannot be utilized to unscramble the ciphertext off chance that cryptanalysis did not know the mixed table utilized. The preparing time appeared the proportion of the contrast of the vigenère cypher calculation. The proposed calculation was not as well essentially distinctive, and the longer the message was handled, the proportion of the time distinction possessed was moreover getting closer to one, which implies the distinction was not critical. The coming about ciphertext was too exceptionally secure, where the coming about ciphertext was irregular since the key utilized was random, and there were 3.75 x 10126 keys combination. This algorithm can be an alternative algorithm that is fast, safe, and easy to implement

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Improve Security Algorithm Cryptography Vigenere Cipher Using Chaos Functions

Cited by 17 publications

References 4 publications

Perpaduan Algoritma Kriptografi Atbash dan Autokey Cipher dalam Mengamankan Data

Perpaduan Algoritma Kriptografi Atbash dan Autokey Cipher dalam Mengamankan Data

Modification of Vigenere Algorithm and One Time Pad Using Rivest Code 6 (RC6) Key Expansion

Improve The Security of The Vigenère Cypher Algorithm by Modifying the Encoding Table and Key

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