Derek Zimmer

Derek is a cryptographer, security expert and privacy activist. He has twelve years of security experience and six years of experience designing and implementing privacy systems. He founded the Open Source Technology Improvement Fund (OSTIF) which focuses on creating and improving open-source security solutions through auditing, bug bounties, and resource gathering and management.

Posts by Derek Zimmer:

SHA-1 Has One Foot In the Grave

Posted on May 22, 2019 by Derek Zimmer

Last week, researchers Gaëtan Leurent and Thomas Peyrin released a paper detailing improvements to the original SHAttered project that theoretically allow chosen-plaintext attacks against SHA-1. After the initial generation of…

Categories: Cybersecurity