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Christmas Challenge 2019: Differential Cryptanalysis — Part 1 Level 2

by Nils Kopal, Christian Bender, published on 12/22/2019

This challenge series introduces in detail the handling of the differential cryptanalysis (DCA). In the first two challenges you have to decrypt encrypted images and enter the code shown in the images. The first challenge needs no filtering, as only valid plaintext-ciphertext pairs are delivered.