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Cracking the Nimbus Cipher with Differential Cryptanalysis

Apr 26, 20218 min read

When did Goku create a cipher with his Nimbus Cloud??! In “Clouds” (PicoCTF ‘21), you’re provided with an implementation of a cipher and an interesting hint: Initial Impressions When you run clouds.py, you see beautiful cloud art and a simple menu ...

Cracking the Nimbus Cipher with Differential Cryptanalysis