Lex is going to touch on some of the basic mathematical concepts used in modern (and to some extend ancient) cryptography such as Prime Numbers, Password Entropy Calculation and Probability Theory, with a focus on Modular Arithmetic. With that, he hopes to be able to demonstrate how the Diffie-Hellman key exchange works in practice by making use of a simple example with small integers.
Just how secure are public WiFi networks? What are the risks of doing your online banking from a coffee shop?
This talk will aim to cover the basics of local network attacks, starting with WiFi exploits and then going over a typical LAN setup to show how easily an attacker could control your network traffic and potentially even your whole computer.
Finally there'll be some discussion of the mitigations and what to be aware of to stay safe.
