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Caesar's Revenge

Hello everyone, long time lurker, 1st time poster.

Here's one for the analog folk... If the image below appeals to your sensibilities, then the article below that may as well.

Lots of nerdy details... Enjoy the brainfood.


Caesar's Revenge AT A GLANCE . Pencil & paper cipher requires no computer . Auto encrypting/decrypting (no password needed) . Great for masking text in hand-written notes SYNOPSES Concerning Julius Caesar's military communications, Roman historian Suetonius wrote: "If he had anything confidential to say, he wrote it in cipher, and by so changing the order of the letters of the alphabet, not a word could be made out." Caesar's Revenge is an enhanced variant of the Caesar cipher [i] that, unlike its predecessor, understands both digits & case sensitivity [ii]. And yet to be clear, Caesar's Revenge, like as all substitution ciphers, is inherently light-duty cryptography [iii/iv]. It certainly wouldn't withstand a brute force attack by endless banks of quantum-gizmos courtesy the NSA [v]. Bottom line? When used in accordance with its intended purpose of masking text, Caesar's Revenge nevertheless provides very good utility. Read on for more information... EXAMPLE Here, we'll begin moving quickly, if you come across unfamiliar jargon, simply study the terms defined in the glossary section of this document. Ready? Righty then, lets do this... 1/3 Choose a permutation from the permutations section... 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 2/3 Create a tableau by splitting the permutation equally into two parts, each on its own line... 0123456789ABCDEFGHIJKLMNOPQRSTU VWXYZabcdefghijklmnopqrstuvwxyz 3/3 Encode/decode as needed by locating each character & converting to its opposite row in the same column... 0123456789ABCDEFGHIJKLMNOPQRSTU VWXYZabcdefghijklmnopqrstuvwxyz plaintext: Snowbear42 ciphertext: xIJR695MZX Boom! You're done. CAVEATS . Group text into blocks to further disguise meaning... yellow submarine yello wsubm arine . Your tableau is a key, keep it private. Store it in your wallet, or better yet, convert the permutation to mnemonic [vi] notation like so... mnemonic: 09AZaz expands to: 0 to 9, A to Z, a to z PERMUTATIONS Here's a brief list of permutations & millions more are possible [vii]. 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz 123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0 23456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01 3456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012 456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123 56789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234 6789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012345 789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456 89ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567 9ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz012345678 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 BCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789A CDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789AB DEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABC EFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCD FGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDE GHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEF HIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFG IJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGH JKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHI KLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJ LMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJK MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKL NOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLM OPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMN PQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNO QRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOP RSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQ STUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQR TUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRS UVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRST VWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTU WXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUV XYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVW YZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWX Zabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXY abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ bcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZa cdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZab defghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabc efghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcd fghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcde ghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef hijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefg ijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefgh jklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi klmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghij lmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijk mnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijkl nopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklm opqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn pqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmno qrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnop rstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopq stuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr tuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrs uvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrst vwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstu wxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuv xyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvw yz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwx z0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxy NOTES i. https://en.wikipedia.org/wiki/Caesar_cipher ii. The classic Roman alphabet contained only 20 letters A to X. It was not until late antiquity that lowercase letters came into use. iii. "Cryptography" is a compound word derived from Greek meaning hidden/"cryptic" writing/"graph". iv. Substitution cipher's are still very much in use on social media to mask spoilers & adult humor, etc. v. https://en.wikipedia.org/wiki/National_Security_Agency vi. https://en.wikipedia.org/wiki/Mnemonic vii. Randomize & reverse (but never add, delete, or duplicate) characters within a permutation for even greater obfuscation. GLOSSARY cipher: a method used to render text unreadable plaintext: readable unmasked text ciphertext: unreadable masked text tableau: block of text used to encrypt/decrypt text permutation: unique re-combinations characters, xyz, yzx, zxy, etc. uppercase: larger letters always CAPITALIZED, ABC lowercase: smaller letters never capitalized, abc row: characters depicted horizontally, ROW column: characters depicted vertically, C O L U M N LEGALESE [c]2022 Michael S. Sanders, Pampa, TX, USA. All rights reserved. COLOPHON 1JMF C5M8 5I8 H5F9 TJPM HJOC9M KMJP8

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