Top posts

Every blog post that took off on Hacker News, ranked by the votes of its best submission. 616 posts.

Security & Privacy
2017
523

Why Constant-Time Crypto?

In 1996, Paul Kocher published a novel attack on RSA, specifically on RSA implementations , that extracted information on the private key by simply measuring the time taken by the private key operation on various inputs. It took a few years for people to accept the idea that such attacks were practical and could be…

535

Introducing App Engine Firewall

A key security feature for application developers and administrators is to be able to allow or deny incoming requests based on source IP addresses. This capability can help you do production testing without exposing your app to the world, block access to your app from specific geographies or block requests from a…