Przemek Michalski wrote:
Hmm, how many hash operations per second is realistic? If you do one every microsecond on a million nodes you still need several years to do 2**69 operations...Hi there,
Anyone heard the recent news on breaking the SHA-1 hashing algorithm?
I guess this is not yet official and God only knows if it is true, however what impact would this fact have on the SHA-1/RSA digital certificate signature technology in overall look.
Any comments?
You may view the following link to read more about this issue:
http://www.schneier.com/blog/archives/2005/02/sha1_broken.html
This of course is much less than the several ten thousend years as it was before and indeed significant for long term signatures, but IMHO still good enough for "everyday life" in e-commerce. But it's already a close call. If someone else can reduce it by a few more bits the algorithm is gone for good!
So if this is confirmed we'd better look for new algorithms.
Are there other opinions on the subject? Or is my guess with one microsecond per operation far off the mark?Thanks,
P.M.
Ted ;)
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