Dating back to the 1600s the Grille Method require a punch card pattern to decipher a message. WP20234D5A Related postsConcealment CiphersJanuary 3, 2024Cyber Threat Intelligence ActionabilityOctober 31, 2023Vigenere TableJanuary 3, 2024 (Cancel Reply) Previous postGraphical CiphersNext postHexadecimal