Vigenere cipher breaker

This online calculator tries to decode Vigenere cipher without knowing the key. It uses the index of coincidence technique.

This page exists due to the efforts of the following people:

Timur

Timur

Anton

Created: 2018-10-20 08:36:57, Last updated: 2022-05-18 13:07:28

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PLANETCALC, Vigenere cipher breaker

Vigenere cipher breaker

Frequency of Letters

LetterFrequency
Items per page:

Key
 
Decoded message
 
Decoded with guess key
 
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PLANETCALC, Vigenere cipher breaker

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