This challenge from the 34C3 CTF implemented a software update in python. In part 1/2 we try to understand the code and think about possible attacks.

software_update: https://archive.aachen.ccc.de/34c3ctf...

What is CTF? https://www.youtube.com/watch?v=8ev9Z...
Why you should play CTFs: https://www.youtube.com/watch?v=rfjV8...

tags: python,crypto,signature,rsa,sha,hash,xor
tools: sublime,python,pycrypto

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