CIPHER/MEDIEVAL CIPHERS
Medieval ciphers
4Monastic book ciphers, masonic grids and the first codebooks of the Italian chanceries.
Book Cipher
A book cipher replaces the alphabet with a book. Every letter is written as a position — page, line, word, letter — and the…
1 2 3 29 11 11 19 8 3 3 20 21 6 1 21 11 12 13 …
Medieval · Substitution · FieldNomenclator
A nomenclator is half cipher, half dictionary. It substitutes letters as usual but also assigns its own codes to the names that…
01 / 03 / 02 / 01 / 04…
Medieval · Substitution · FieldNull Cipher
A null cipher does not disguise a letter — it hides which letters are the message. Every character in the transmitted text is a…
THEWL ATHEO HOLDO FAIRM NDTHS OLDBK ASSLE OMKE…
Medieval · Substitution · StarterPigpen Cipher
Pigpen writes letters as fragments of a grid. Two tic-tac-toe frames and two X frames give exactly 26 cells, so the cipher fits…
N3 N5 S3 S3 E1 N8 S6 S3 N4 E1 N5 N3 S9 N5 E2 E…