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Add an algorithm to find the key of a Vigenere cipher using IC #12960
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# Conflicts: # ciphers/break_vigenere.py
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# Conflicts: # ciphers/break_vigenere.py
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Describe your change:
This is the implementation of an algorithm which can find the key of a Vigenere ciphertext. It uses the index of coincidence (IC) and statistical analysis to discover the key of the ciphertext. It works best with large pieces of text in the english language. Some trial and error might be needed to find the actual key.
Checklist: