BruCON 0x10

In this 2 hour workshop, Didier will guide you through XOR Cryptanalysis exercises using several open source tools (several of these tools are created and maintained by Didier).

After an introduction to the XOR operator and its use in cryptography, we will work through several exercises that will familiarize you with tools like:

• CyberChef
• translate.py
• XOR 010 Editor script
• XORSearch
• xor-kpa.py 

And we will end with exercises using custom ransomware decryption tools that Didier developed for a particular ransomware strain with flawed crypto.