Implementation of Trifid Cipher Algorithm in Securing Data

Sari, Rita Novita; Hayati, Ratna Sri; Hardianto,; Azhar, Asbon Hendra; Sipahutar, Lahmudin; Lazuly, Ivi

doi:10.1109/citsm47753.2019.8965378

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…"thiscourseaimstoprovideyouwithdetailedknowledgeofimp ortanttechnologiesandapplicationthatareusedintheinternetdueto thebroadnatureofthisfieldthecoursecoversonlyselectedtopicsfo cussingfirstonsomeadvancedtopicsininternettechnologiesegwir elesslansmobileinternetmulticastandthenaselectionofcurrentan dnextgenerationapplicationsandservicesegppiptvvoip" Presented in Table XXI is the result of the frequency analysis of the encoded text using the traditional Polybius Square. Based on the result, the digraphs 15,44,24,33,34,43, and 11 have the most count of repeating codes in the encrypted text. If these values are converted using the traditional method, the decrypted values would be E, T, I, N, O, S, A, respectively.…”

Section: B Evaluation Methodsmentioning

confidence: 99%

“…Its ability to convert letter sequences to numeric sequences, reduce the number of different characters, and allow encoding of plaintext into two separately manipulatable units are known to be its advantages [6], [38]. Further, the Polybius square has paved the way to the development and processes of other classical ciphers that are still used today such as ADFGVX Cipher [8], [39]- [41], Bifid cipher [8], [42], Nihilist cipher [43], and Trifid cipher [44], [35]. Furthermore, modern cryptographic systems have embedded the Polybius square as a fundamental component of the cryptographic process, such as in the key generation procedures used by modern ciphers like the advance encryption standard (AES), data encryption standard (DES), and other algorithms [2], [39], [40], [45]- [50].…”

Section: Introductionmentioning

confidence: 99%

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A Novel ASCII Code-based Polybius Square Alphabet Sequencer as Enhanced Cryptographic Cipher for Cyber Security Protection (APSAlpS-3CS)

Arroyo¹,

Reyes²,

Delima³

2020

IJACSA

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For all industries, cybersecurity is regarded as one of the major areas of concern that needs to be addressed. Data and information in all forms should be safeguarded to avoid leakage of information, data theft, and robbery through intruders and hackers. This paper proposes a modification on the traditional 5x5 Polybius square in cryptography, through dynamically generated matrices. The modification is done through shifting cell elements for every encrypted character using a secret key and its ASCII decimal code equivalents. The results of the study revealed that the modified Polybius cipher offers a more secure plaintext-ciphertext conversion and is difficult to break, as evident in the frequency analysis. In the proposed method, each element produced in the digraphs exhibits a wider range of possible values. However, with the increase of process in the encryption and decryption, the modified Polybius cipher obtained a longer execution time of 0.0031ms, being identified as its tradeoff. The unmodified Polybius cipher, however, obtained an execution time of 0.0005ms. Future researchers may address the execution time tradeoff of the modified Polybius cipher.

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