Slow connection performance with ssh2

[Damien Miller]

On Mon, 5 Nov 2001, Markus Friedl wrote:

> i don't think dh-group-exchange causes more computation.
> it adds one additional round-trip. hm, ok, if a larger group
> is chosen, the computation time increases.

one extra modexp on the client, two on the server and a bit of 
hashing at each end.

-d

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