SHA1 broken?

[Eugen Leitl]

On Sat, Feb 19, 2005 at 03:53:53PM +0000, Dave Howe wrote:

> I wasn't aware that FPGA technology had improved that much if any - feel
> free to correct my misapprehension in that area though :)

FPGAs are too slow (and too expensive), if you want lots of SHA-1
performance,
use a crypto processor (or lots of forthcoming C5J mini-ITX boards), or an
ASIC.

Assuming, fast SHA-1 computation is the basis for the attack -- we do not
know that.

While looking, came across

	http://www.ietf.org/proceedings/02jul/slides/saag-1.pdf

"We really DO NOT need SHA-256 for Message Authentication", mid-2002.

--
Eugen* Leitl <a href="http://leitl.org">leitl</a>
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