Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher

Encryption and Decryption of information is vital in many communication methods and systems as it provides security during communication between two parties in the presence of third parties known as adversaries. The most basic of encryption technique is the monoalphabetic substitution cipher. Howeve...

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Main Author: Tan, Zacharias Han Jenn
Other Authors: Anwitaman Datta
Format: Final Year Project
Language:English
Published: 2018
Subjects:
Online Access:http://hdl.handle.net/10356/74054
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-740542023-03-03T20:53:37Z Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher Tan, Zacharias Han Jenn Anwitaman Datta School of Computer Science and Engineering DRNTU::Engineering Encryption and Decryption of information is vital in many communication methods and systems as it provides security during communication between two parties in the presence of third parties known as adversaries. The most basic of encryption technique is the monoalphabetic substitution cipher. However, such a cipher can be broken using statistical analysis of the ciphertext. Many attempts to use statistical analysis to break a monoalphabetic substitution cipher have been largely successful. This project aims to build a web-based demonstrator to visualise the steps taken during statistical analysis. The demonstrator also will show the intermediate results of making partial guess in the process of statistical analysis. This demonstrator will eventually serve as an accompanying learning material for students learning cryptography, particularly in the area of cryptanalysis. This report will cover the concepts of monoalphabetic substitution ciphers and statistical analysis as well as the finalized algorithm used to perform statistical analysis. The results of the demonstrator and its implications are then discussed for further extension of this project. Bachelor of Engineering (Computer Science) 2018-04-24T04:12:29Z 2018-04-24T04:12:29Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/74054 en Nanyang Technological University 35 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Tan, Zacharias Han Jenn
Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
description Encryption and Decryption of information is vital in many communication methods and systems as it provides security during communication between two parties in the presence of third parties known as adversaries. The most basic of encryption technique is the monoalphabetic substitution cipher. However, such a cipher can be broken using statistical analysis of the ciphertext. Many attempts to use statistical analysis to break a monoalphabetic substitution cipher have been largely successful. This project aims to build a web-based demonstrator to visualise the steps taken during statistical analysis. The demonstrator also will show the intermediate results of making partial guess in the process of statistical analysis. This demonstrator will eventually serve as an accompanying learning material for students learning cryptography, particularly in the area of cryptanalysis. This report will cover the concepts of monoalphabetic substitution ciphers and statistical analysis as well as the finalized algorithm used to perform statistical analysis. The results of the demonstrator and its implications are then discussed for further extension of this project.
author2 Anwitaman Datta
author_facet Anwitaman Datta
Tan, Zacharias Han Jenn
format Final Year Project
author Tan, Zacharias Han Jenn
author_sort Tan, Zacharias Han Jenn
title Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
title_short Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
title_full Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
title_fullStr Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
title_full_unstemmed Web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
title_sort web demonstration of statistical analysis of a basic mono alphabetic substitution cipher
publishDate 2018
url http://hdl.handle.net/10356/74054
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