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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Spelling suggestions: "subject:"polybius aquare ciphers"" "subject:"polybius aquare chiphers""

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Polybius Square Ciphers

Kong, Xiangbo January 2022 (has links)
In this thesis, we will define Polybius Square Ciphers and explain howit used to encrypt plaintext. We will talk about Playfair, ADFGX andADFGVX. We will introduce how Shannon entropy works and its principalproperties. We will use Shannon entropy and frequency comparison toshow whether Playfair and ADFG(V)X are uncertain and safe in today’stechnological environment.
Polybius Square Ciphers
Mathematics
Matematik

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