10-25, 10:15–11:45 (Europe/Luxembourg), Schengen 1 & 2
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).
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
XOR 010 Editor script
XORSearch
And we will end with exercises using custom ransomware decryption tools that Didier developed for a particular ransomware strain with flawed crypto.
Didier Stevens (SANS ISC Handler, ...) is a Senior Analyst working at NVISO. Didier has developed and published more than 100 tools, several of them popular in the security community.You can find his open source security tools on his IT security related blog http://blog.DidierStevens.com