If you do things as a polyalphabetic substitution then, provided you limited the length of the ciphertext by the available letter spaces in the font file, couldnt you avoid frequency analysis completely? So for example each letter s in the plaintext would be generated from a different ciphertext symbol.
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If you do things as a polyalphabetic substitution then, provided you limited the length of the ciphertext by the available letter spaces in the font file, couldnt you avoid frequency analysis completely? So for example each letter s in the plaintext would be generated from a different ciphertext symbol.