Category:Grille ciphers

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English: A grille cipher is an encryption method using a grid of characters. Types of grill ciphers include the Cardan grille, single-letter grilles, "trellis" or "chessboard" ciphers, and turning grilles such as the Fleissner grille.
class of ciphers
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Subclass of cipher
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Media in category "Grille ciphers"

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