Re: [p2p-hackers] SHA1 broken?

On Wed, Feb 16, 2005 at 07:55:15AM -0500, R.A. Hettinga wrote:

From: "Serguei Osokine" To: "Peer-to-peer development." Subject: RE: [p2p-hackers] SHA1 broken? Date: Wed, 16 Feb 2005 00:11:07 -0800

Okay, so the effective SHA-1 length is 138 bits instead of full 160 - so what's the big deal? It is still way more than, say, MD5

In applications where collisions are important, SHA1 is now effectively 69 bits as opposed to 80. That's not very much, and odds are there will be an improvement on this attack in the near future. Eric