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Is there a way to defeat statistical information leak in Vigenère cipher when the ciphertext is reasonably larger than the key size?

I have been thinking in XORing a keystream of a cryptographically secure hash function in Counter Mode in the plaintext before applying the key, can it defeat statistical information leak? It depends....
poncho's user avatar
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1 vote

Breaking a Vigenere from nouns rather than text?

Yes, it is possible to encode two different letters with the Vigenere and get the same ciphertext letter, as long as the key letters for the plaintext letters are different. An example of this would ...
Bentley H.'s user avatar

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