A study of caesar cipher and transposition cipher in jawi messages

Cryptography known as art and science which is used to hide the messages that contain a few policy terminologies. These terminologies in cryptography are plaintext/ messages, ciphertext, encryption, decryption and key. Encryption is a proses to transform the plaintext together with key into cipherte...

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Main Authors: Mohd Lokman, Syiham, Chuah, Chai Wen, Ab. Rahman, Nurul Hidayah Binti, A. Hamid, Isredza Rahmi Binti
Format: Article
Published: American Scientific Publishers 2018
Subjects:
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author Mohd Lokman, Syiham
Chuah, Chai Wen
Ab. Rahman, Nurul Hidayah Binti
A. Hamid, Isredza Rahmi Binti
author_facet Mohd Lokman, Syiham
Chuah, Chai Wen
Ab. Rahman, Nurul Hidayah Binti
A. Hamid, Isredza Rahmi Binti
author_sort Mohd Lokman, Syiham
collection UTHM
description Cryptography known as art and science which is used to hide the messages that contain a few policy terminologies. These terminologies in cryptography are plaintext/ messages, ciphertext, encryption, decryption and key. Encryption is a proses to transform the plaintext together with key into ciphertext. Decryption is the reverse process of encryption. Caesar cipher and transposition cipher are two historical ciphers in cryptography. Caesar cipher is a monoalphabetic cipher. It is a substitution cipher which replace each letter in plaintext with another letter to form the ciphertext. Transposition cipher uses a technique which rearrangement letters in plaintext with a keyword and produce the ciphertext. Caesar cipher and Tansposition cipher both are commonly used to encrypt the English letters. The output of encrypted of English letters are known as ciphertext. The attacker can easily cryptanalysed the Caesar cipher by observing the frequency distribution English letters and ciphertext. For Transposition cipher, the cipher can be cracked by knowing the keyword. To date, there is no any research encrypt Jawi letters using Caesar cipher and Transposition cipher. Hence, in this paper encryption and decryption by using Caesar cipher and Transposition cipher in Jawi messages are proposed. Next, the security level of Caesar cipher and Transposition cipher in Jawi messages are compared. The result has shown that both ciphers are still not secure to protect the confidentiality of the Jawi messages.
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spelling uthm.eprints-53622022-01-09T04:38:32Z http://eprints.uthm.edu.my/5362/ A study of caesar cipher and transposition cipher in jawi messages Mohd Lokman, Syiham Chuah, Chai Wen Ab. Rahman, Nurul Hidayah Binti A. Hamid, Isredza Rahmi Binti QA76 Computer software T Technology (General) Cryptography known as art and science which is used to hide the messages that contain a few policy terminologies. These terminologies in cryptography are plaintext/ messages, ciphertext, encryption, decryption and key. Encryption is a proses to transform the plaintext together with key into ciphertext. Decryption is the reverse process of encryption. Caesar cipher and transposition cipher are two historical ciphers in cryptography. Caesar cipher is a monoalphabetic cipher. It is a substitution cipher which replace each letter in plaintext with another letter to form the ciphertext. Transposition cipher uses a technique which rearrangement letters in plaintext with a keyword and produce the ciphertext. Caesar cipher and Tansposition cipher both are commonly used to encrypt the English letters. The output of encrypted of English letters are known as ciphertext. The attacker can easily cryptanalysed the Caesar cipher by observing the frequency distribution English letters and ciphertext. For Transposition cipher, the cipher can be cracked by knowing the keyword. To date, there is no any research encrypt Jawi letters using Caesar cipher and Transposition cipher. Hence, in this paper encryption and decryption by using Caesar cipher and Transposition cipher in Jawi messages are proposed. Next, the security level of Caesar cipher and Transposition cipher in Jawi messages are compared. The result has shown that both ciphers are still not secure to protect the confidentiality of the Jawi messages. American Scientific Publishers 2018 Article PeerReviewed Mohd Lokman, Syiham and Chuah, Chai Wen and Ab. Rahman, Nurul Hidayah Binti and A. Hamid, Isredza Rahmi Binti (2018) A study of caesar cipher and transposition cipher in jawi messages. Advanced Science Letters, 24 (3). pp. 1651-1655. ISSN 1936-6612 https://doi.org/10.1166/asl.2018.11130
spellingShingle QA76 Computer software
T Technology (General)
Mohd Lokman, Syiham
Chuah, Chai Wen
Ab. Rahman, Nurul Hidayah Binti
A. Hamid, Isredza Rahmi Binti
A study of caesar cipher and transposition cipher in jawi messages
title A study of caesar cipher and transposition cipher in jawi messages
title_full A study of caesar cipher and transposition cipher in jawi messages
title_fullStr A study of caesar cipher and transposition cipher in jawi messages
title_full_unstemmed A study of caesar cipher and transposition cipher in jawi messages
title_short A study of caesar cipher and transposition cipher in jawi messages
title_sort study of caesar cipher and transposition cipher in jawi messages
topic QA76 Computer software
T Technology (General)
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