Vigenere cipher breaker

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

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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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