Secure Cryptosystem Using Randomized Rail Fence Cipher for Mobile Devices

Banerjee, Amit; Hasan, Mahamudul; Kafle, Him

doi:10.1007/978-3-030-22868-2_52

Cited by 7 publications

(6 citation statements)

References 14 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%

“…A cipher algorithm is responsible for the encryption and decryption of the data [2]. Some of the classical ciphers found in the literature are ADFGX Cipher [6]- [8], Affine Cipher [8]- [11], Atbash Cipher [12], Auto-key Cipher [13], Baconian Cipher [8], [14], Base64 Cipher [15]- [17], Beaufort Cipher [8], Caesar Cipher [18]- [20], Enigma Machine Cipher [8], Four-square cipher [8], Grille Cipher [21], Hill cipher [22], Homophonic Substitution Cipher [23], [24], Permutation Cipher [8], Playfair Cipher [25]- [27], Polybius Cipher [28]- [32], and Rail fence Cipher [33], [34], among others.…”

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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Section: B Evaluation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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“…After playfair substitution, transposition on the ciphertext is done. To perform this task, the railfence cipher [8] with a key of 3 for jumbling the ciphertext is used. In a transposition cipher, the order of the alphabets is re-arranged to obtain the cipher-text as follows:…”

Section: Proposed Approachmentioning

confidence: 99%

“…Rules for encoding and then decoding are similar to the existing playfair cipher. In EPC, two matrices alternatively are used for encoding of the digraph (pairs of two) and this work also uses the Rail-fence cipher [8] in the end to get the final ciphertext.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Communication Using 8 × 8 Extended Playfair Cipher and Steganography

Sharma¹,

Gupta²,

Thakur³

et al. 2020

Preprint

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<div>In this world of communication, the security of the</div><div>messages to be transferred plays a very important role. Strategies like Encryption/Decryption, Digital Signatures, Steganography etc., have been developed to ensure the security, privacy and integrity of these messages. Playfair cipher is one of the well known polyalphabetic ciphers used for the encryption and decryption. However in account of few drawbacks inherent in existing 5*5 playfair cipher, recently improved version of Playfair cipher i.e., Extended 8*8 Playfair cipher has been developed. In this work, extended playfair cipher with Least Significant bit steganography are applied to hide the presence of any such messages. The main objective of this work is to build a secure mechanism of sending and receiving messages. The results show that combination of both extended 8 * 8 playfair cipher and stegnography increases the security of messages in contrast to the existing traditional Playfair ciphers. </div>

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“…Various classical ciphers such as Railfence cipher [13], [14], Polybius square cipher [15]- [19], Playfair cipher [20]- [22], Permutation cipher [23], Homophonic substitution cipher [24], [25], Hill cipher [26], Grille cipher [27], Four-square cipher [23], Enigma machine cipher [23], Caesar cipher [28]- [30], Base64 cipher [31]- [33], Affine cipher [23], [34]- [36], and ADFGVX cipher [23], [37]- [39] to name some, are being incorporated with block ciphers, among others, to solve the constraints in IoT. Among the classical ciphers, the Polybius Cipher, known as the Polybius square, is identified as one of the commonly used methods for such purpose [40]- [42].…”

Section: Introductionmentioning

confidence: 99%

A Modified Polybius Cipher with a New Element-in-Grid Sequencer

Arroyo¹

2020

IJATCSE

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This paper modifies the traditional Polybius square with a 5x5 grid through the introduction of a new dynamic substitution-based matrix for ciphertext assignment. The modification is done through the alteration of cell elements, where the ASCII decimal code equivalent of the key is the basis for the element positioning. The proposed enhanced Polybius square called ASCII Code-based Polybius Square Alphabet Sequencer (APSAlpS) is hoped to be used along with other lightweight cryptographic algorithms classified as block ciphers, stream ciphers, and hash functions in solving constrains identified in IoT. The use of the modified Polybius square along with other lightweight ciphers to establish a better IoT security is recommended.

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Secure Cryptosystem Using Randomized Rail Fence Cipher for Mobile Devices

Cited by 7 publications

References 14 publications

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

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

Enhancing Communication Using 8 × 8 Extended Playfair Cipher and Steganography

A Modified Polybius Cipher with a New Element-in-Grid Sequencer

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