Google+CWI announce SHA1 attack, publishe a collision

Hal Murray hmurray at
Thu Feb 23 20:18:07 UTC 2017

Today, 10 years after of SHA-1 was first introduced, we are announcing the 
first practical technique for generating a collision. This represents the 
culmination of two years of research that sprung from a collaboration between 
the CWI Institute in Amsterdam and Google. We've summarized how we went about 
generating a collision below. As a proof of the attack, we are releasing two 
PDFs that have identical SHA-1 hashes but different content.

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