In reply to the latest postings:
Many submissions were faster than SHA-2 at the time of submission. Lots
of people had fun speeding up SHA-2 -- so the competition has definitely
led to a faster SHA-2.
Also, check out
http://bench.cr.yp.to/graph-sha3/long.png
to see that on CPUs Blake is faster than SHA-2; for the bigger CPUs also
skein is faster than SHA-2, so there are efficiency benefits of the new
hash functions. Furthermore, whichever candidate is chosen as SHA-3 will
have a bigger security margin than SHA-2.
Tanja
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