Filter Blogs expand_more
Blog add
Authors add
Solutions add
3 Results for 'collision'
Blog

By Bruce Morton

October 19, 2015

The Freestart collision for full SHA-1 paper was released by Marc Stevens, Pierre Karpman and Thomas Peyrin. This is not a collision attack on the SHA-1 function itself, but on the compression function that underlies it. The research paper states "Freestart collisions, like the one presented here, do not directly imply a collision for SHA-1. However, this work is an important milestone towards an actual SHA-1 collision and it further shows how graphics cards can be used very efficiently for these kind of attacks."
Blog

By Bruce Morton

March 06, 2017

Google and CWI announced SHAttered, an attack on the SHA-1 cryptographic hash function. The attack was demonstrated by allowing the cryptographic signature on a good PDF to be the same as on a bad PDF. In other words, they forged the signature.
Blog

By Bruce Morton

April 06, 2017

Entrust Datacard Stops Issuing SHA-1 Certificates
Page 1 of 1