cipherface: The zig-zag cipher - Cryptography, Andre Langie, c. 1922 The sender and receiver share c
cipherface:The zig-zag cipher - Cryptography, Andre Langie, c. 1922The sender and receiver share copies of the key, and communicate by transmitting the zig-zags. No stronger than a simple substitution, its only strength lies in steganography. If the zig-zags are hidden in some way, in a drawing or made to look like doodling in the margins of a book, it is hoped that an eavesdropper will not realize that a message is being sent. -- source link
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