Radare2 is a complete framework dedicated to reverse engineering. Written in C, completely portable, and released under LGPL, it's a tool of trade to deal with binaries in any form. A lot of people are currently using it for a large panel of different purposes; binary exploitation, weird CPU architecture reversing, binary diffing, ctf, emulation, ... But since it is a really complete tool without a GUI, it has a steep learning curve, hence this workshop.