pwntools

osusec

monday, 1/6

Capture The Flag League

pwntools

pizza
streaming
unmuted
cd’d into the right directory

what’s pwntools

python library

easy way to talk to programs
remote or local!

everything’s bytes

pwntools doesn’t assume any type
receiving a message? it’s bytes
sending a message? it’s bytes
confusing at first, but better than the alternative

install

pip install pwntools
or pacman -S python-pwntools
or however you install python packages on yr machine

kk demo

knowledge 4 tn

OTP = one-time-pad = bytes of one thing XORed with bytes of another thing
file signatures AKA magic bytes