Breaking The Vigenere Encryption System

This applet is programmed to illustrate the code-breaking process using the Vigenere encryption as the code. The Vigenere encryption is broken by comparing histograms of various frequencies until the correct guess is obtained. A wrong guess for the period p leads to relatively flat histograms. The code breaker in this case repeats the analysis with a new trial period.
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Author Name: 
Kevin O'Bryant
Source Code Available: 
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Intended User Role: 
Learner, Teacher
Resource Type: 
Free for All
Math Level: 

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