[458] in cryptography@c2.net mail archive

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Re: How bad is this?

daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Wed Apr 2 00:01:44 1997

To: cryptography@c2.net
In-reply-to: Your message of "Tue, 01 Apr 1997 21:33:02 MST."
             <9704020433.AA24559@nyx.net> 
Reply-To: perry@piermont.com
Date: Tue, 01 Apr 1997 23:58:09 -0500
From: "Perry E. Metzger" <perry@piermont.com>


Colin Plumb writes:
> I've been trying to come up with a very fast, and not necessarily
> very secure hash function for TCP initial sequence number selection.
> (That means fast when *not* in an inner loop and doesn't thrash the cache.)

I don't understand why this is necessary. Given how slow TCP initial
handshakes are, and how (relatively) infrequent, I would guess that
this wouldn't improve performance in any noticeable way, and would
lower security...

Perry

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