In 2009, while I was researching Surviving Cyberwar, I attended the COSAC security conference outside of Dublin for the first time. During an open session I posed this question to the attendees: “Can ...

New research into attacks against the SHA-1 cryptographic algorithm lessen the cost and time to arrive at a practical collision. When Bruce Schneier made his oft-cited and mathematically sound ...

I was reading the new Ars article about Microsoft's decision to retire SHA-1 due to its vulnerability to collision attacks. The article mentions the well-publicized Flame attack of 2012, a key ...

A design flaw in the decades-old RADIUS authentication protocol allows attackers to take over network devices from a man-in-the-middle position by exploiting MD5 hash collisions. The “secure enough” ...

1) It is trivial for someone to cause a collision (in fact effectively indefinitely many) with other inputs they control. 2) It's almost certainly not too hard for someone motivated to generate ...