Showing posts with label SHA-2. Show all posts
Showing posts with label SHA-2. Show all posts

Tuesday, 19 March 2013

Hash Length Extension: The padding that killed your secret key

Its been a while folks! but I'm back with another really interesting post, this time about how to abuse hashing algorithms or rather a certain style of hashing algorithms.

I'm going to try to teach you the analysis that gave birth to this very clever attack and to do that I need to talk a little about hashing algorithms and how they are constructed, I mean its not just coincidence that collisions in hashing functions are extremely rare.