Archive for the 'Talks' Category

Predicting Random Numbers in Ethereum Smart Contracts

Slides from my AppSec California 2018 talk “Predicting Random Numbers in Ethereum Smart Contracts”

Detailed blog post: https://blog.positive.com/predicting-random-numbers-in-ethereum-smart-contracts-e5358c6b8620

Database Firewall from Scratch

Slides from our talk with Denis Kolegov at PHDays 7 “Database Firewall from Scratch” (+ bonus).

PostMessage Security in Chrome Extensions

Slides from my talk at OWASP London Meetup on the 30th of March, 2017.

Video
CRX PostMessage Scanner source code

Waf.js: How to Protect Web Applications using JavaScript

CONFidence 2013: PHP Object Injection Revisited