vigenere

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Someone knows how to find key length of vigenere ciphertext effectively? I wrote a code for coincidence method to find key length. Sometimes it works, sometimes it doesn't.
Or i fucked up while implementing it?

question

cryptography

Someone knows how to find key length of vigenere ciphertext effectively? I wrote a code for coincidence method to find key length. Sometimes it works, sometimes it doesn't. Or i fucked up while implementing it?

question

vigenere

cryptography

Someone knows how to find key length of vigenere ciphertext effectively? I wrote a code for coincidence method to find key length. Sometimes it works, sometimes it doesn't.
Or i fucked up while implementing it?