A Novel Approach to Overcome Dictionary and Plaintext Attack in SMS Encryption and Decryption Using Vignere Cipher

Ahamed, B. Bazeer; Murugan, K.

doi:10.1007/978-3-030-33585-4_55

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…However, the proposed algorithm Vigenere table is limited to alphabet characters only and is unable to encrypt messages containing the number and special symbols. In addition to this, the author does not use schematic flowcharts to clarify for readers, especially for those who are new to cryptography.The Author [13], presented a novel approach to overcome the dictionary and plaintext attack in SMS encryption and decryption using the Vigenere cipher. The proposed algorithm use number of any base as a key to overcome the dictionary attack and reduce the table from 26 x 26 to 26 x n where n depends on the base of the key.…”

Section: Hybrid Cryptosystemmentioning

confidence: 99%

Enhancing the Security of Vigenere and Polybius Hybrid Cryptography System using Modified Linear Congruential Generation Algorithm

Muhammed,

Tsegaye,

Woldegiorgis

2024

Preprint

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In the arena of security, various encryption algorithms are used to protect information transmitted through insecure channels. Employing a hybrid encryption algorithm provides a strong defense and complicates the decryption process for potential intruders. A hybrid cipher system that combines the Vigenere and Polybius ciphers has proven to be more secure than each cipher alone. One strategy to bolster cipher security involves generating distinct cipher text results for the same plain text and key during different instances. However, hybrid algorithm faces vulnerable to different cryptanalysis attacks such as frequency analysis attack, brute force attack and dictionary attack due to the use of repeating nature of the Vigenere key and unmodified Polybius table for encryption. To address these challenges, we propose an algorithm introducing dynamic cipher text, a random key generated through a modified linear congruential generation algorithm, and a randomized Polybius table for each character using the Randi function. Simulation results demonstrate that the proposed algorithm achieves enhanced security metrics, supporting a 96% of avalanche effect, improved confusion and diffusion properties, a mere 1.54 % average occurrence of character in the cipher text, and a 0.01839 index of coincidence value. Therefore, the proposed algorithm outperforms existing hybrid algorithms in terms of security.

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Section: Hybrid Cryptosystemmentioning

confidence: 99%

Enhancing the Security of Vigenere and Polybius Hybrid Cryptography System using Modified Linear Congruential Generation Algorithm

Muhammed,

Tsegaye,

Woldegiorgis

2024

Preprint

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“…A single page was utilised in record-level extraction errands, using strategies like the TPC [15], the MDR [12], RST, ViNTs, ViPER [10], ViDE [13], and STEM [11]. These methods approximately were spitted into groups: the methods based on HTML [10], [11], [5], [7], [15], and the approaches relied on the vision [12], [3], [4], [8], and [18].…”

Section: Related Workmentioning

confidence: 99%

A Deep Web Data Extraction Framework Enhancement Method

Noori¹,

Ahamed²

2022

J Comput Sci Intell Technol

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The solutions for the data extraction problem are based on an analysis of the HTML DOM trees and the response page tags. These techniques rely highly on HTML specifications, even though they can produce good results. To effectively disclose in-depth online data, this research provides a methodology with two stages to address the problem. To find the user’s text query, the suggested system first performs “normal crawling.” A method is suggested based on the crawler’s received moved forward weighting work (ITF-IDF) to choose important websites. “data region extraction” is carried out in the second stage to gather data records. The suggested data extractor extracts visual blocks using the blocks’ visual characteristics. According to the suggested technique, the visual blocks should be grouped into similar formats based on format trees and appearance similarity. The visual blocks that will be extracted as information records from the cluster with the highest weight are those that are selected. The test reveals that the system’s suggested outline is superior to earlier information extraction efforts.

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A Novel Approach to Overcome Dictionary and Plaintext Attack in SMS Encryption and Decryption Using Vignere Cipher

Cited by 2 publications

References 10 publications

Enhancing the Security of Vigenere and Polybius Hybrid Cryptography System using Modified Linear Congruential Generation Algorithm

Enhancing the Security of Vigenere and Polybius Hybrid Cryptography System using Modified Linear Congruential Generation Algorithm

A Deep Web Data Extraction Framework Enhancement Method

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