Password Cracking with 8x Nvidia  GTX 1080 Ti GPUs
In 2010 I built an 8-GPU machine[1] (4 dual-GPU AMD HD5970) and wrote an MD5 bruteforcer (then faster than hashcat), doing 28.6 then 33.1 billion passwd hashes/sec with a software optimization:http://blog.zorinaq.com/whitepixel-breaks-286-billion-passwo...It's interesting to note that 6.5 years later a single GPU like the Nvidia 1080 Ti can match the whole 2010 machine (32 billion hashes/sec). This is a doubling of speed every ~2 years. Moore's Law is still alive and kicking (contrary to what many claim)![1] Incidentally posting this machine on HN is how I got pointed to Bitcoin thanks to the reply of a HN user :) https://news.ycombinator.com/item?id=2003888