[MUD-Dev] SSH Encryption on data stream

Christopher Allen ChristopherA at skotos.net
Mon Oct 13 08:58:02 New Zealand Daylight Time 2003


Amanda Walker wrote:
> On Friday, October 10, 2003, at 03:44 PM, Brian Hook wrote:
>> Using industrial strength crypto would likely cause serious
>> performance problems.
>
> Only on the server side, but it would certainly be an added hardware
> expense at the server end.  On the client side, an modern gaming PC
> can encrypt a single connection using AES or 3DES at 100Mbps without
> much CPU impact.

It isn't stream encryption that causes performance problems, but public-key
encryption. Even with accellerated hardware, PKI take significant CPU time. Thus
the "Monday Morning Problem" is what you have to engineer around.

-- Christopher Allen



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