Bifid cipher – Encrypt and decrypt online
The Bifid cipher combines the Polybius square with transposition, and uses fractionation to achieve diffusion. It is considered a digraphic cipher as ciphertext character depends on two plaintext characters.
The Bifid cipher combines the Polybius square with transposition, and uses fractionation to achieve diffusion. It is considered a digraphic cipher as ciphertext character depends on two plaintext characters.