Subj : Re: Hiding Codes in Plain Sight Socialist Style
To   : warmfuzzy
From : oog
Date : Fri Mar 22 2019 15:37:35

Maybe I missed it, but this type of cipher has a proper name, It's the
"Ottendorf cipher" .. probably most widely known from it's inclusion in the
National Treasure movie.

https://mysteriouswritings.com/mw-codes-ciphers-and-puzzle-series-the-ottendorf
-cipher/

Any book will work, so long as it's the proper edition on both ends, and the
larger the better, though it doesn't NEED to be a large book, the most
important thing is all deciphering use the same book. But... the larger, the
better of course, for more randomness/etc.

I think a strong argument could be made for using more rare books too. But if
it's all about easily accessible, but still fairly strongly encrypted, a
common, mundane book.. like a cookbook, or particular edition of a
dictionary would work great too.

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