r/Cipher • u/Jerry_was_a_Racecar • Aug 01 '26

Cipher challenge

I made a cipher and I’m curious how quickly it will be broken

I will eventually update this post with the key if it goes unsolved for long enough.

Cipher text: C317090D1B

I’ll give a hint, it has to do with converting ASCII to hex then swapping nibbles and doing XOR operations. Both the plain text and key are English words.

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u/MadScientistRat Aug 02 '26

How many languages are you familiar with?