We redesigned MysteryTwister, enjoy! Feedback
Explore Challenges
Affine Codes / Modulo Arithmetic with N / Extended Euclid Level 1
by Tanja Lange, Andreas Grüner, Bernhard Esslinger, published on 2011-09-09
Two girls want to communicate in a secret way using the „affine cipher“. Transform the encryption rule into the decryption rule and turn in the plaintext of the example.