Messages in this thread | | | Date | Thu, 14 Aug 2003 16:07:23 -0400 | From | Chris Friesen <> | Subject | Re: [RFC][PATCH] Make cryptoapi non-optional? |
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David Wagner wrote:
> I don't see where you are getting this from. Define > F(x) = first80bits(SHA(x)) > G(x) = first80bits(SHA(x)) xor last80bits(SHA(x)). > What makes you think that F is a better (or worse) hash function than G? > > I think there is little basis for discriminating between them. > If SHA is cryptographically secure, both F and G are fine.
In this case we can save the bother of doing the xor, no?
Chris
-- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
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