Google Online Security Blog - Announcing the first SHA1 collision

Uh oh!

Here's an excerpt:

Here are some numbers that give a sense of how large scale this computation was:

• Nine quintillion (9,223,372,036,854,775,808) SHA1 computations in total
• 6,500 years of CPU computation to complete the attack first phase
• 110 years of GPU computation to complete the second phase

Announcing the first SHA1 collision

Google Online Security Blog:

'via Blog this'