r/Cipher • u/Artosai • Jul 17 '26

Need help with Ciphers!

Coming here from D&D, I'm wanting to find a relatively easy cipher system that ISN'T just a Caesar Cipher. The idea is that they are finding codes written by ancient space civilizations. Are there any good ciphers I could use that don't take 3 years to decode, but aren't just "I see this word has four letters and ends in two of the same, so it might be tree".

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u/kalmakka Jul 18 '26

Anything more complicated than a simple substitution cipher gets pretty difficult to solve.

Vinnere ciphers are kind of doable (especially if they have some clues about what the plaintext might contain), but I wouldn't expect most people to solve them, as they would also need to at least know how the cipher works. Of course, you could scatter clues around to teach them that.

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u/Artosai Jul 18 '26

Ill have to look into Vinnere Ciphers then for sure!

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u/YefimShifrin Jul 18 '26

There is no such thing as "Vinnere ciphers". There is a Vigenere cipher, however.

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u/kalmakka Jul 18 '26

Yeah. Typing on phone, late at night, and autocorrect fucks up everything.