[Bug 877] ssh 3.8.1p1 client cannot disable encryption with "-c none"

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http://bugzilla.mindrot.org/show_bug.cgi?id=877





------- Additional Comments From mohit_aron at hotmail.com  2004-06-08 18:24 -------

Another experiment I did measured the latency. Basically I wrote a tcp client 
and server program that sent a packet to each other in a ping-pong fashion. 
I did 1000 of these ping pongs, and then computed the avg time for a ping pong.
The ping-pong was done over a channel forwarded using ssh. By choosing different
cipher/macs, I was able to compute the additional latency due to these options.
The setup is the same as that I posted above, with my laptop at home as the 
client. Each packet that was sent was 128 bytes.

Cipher        Mac          Avg ping-pong latency (msec)

default       default      44.90
arcfour       default      43.68
arcfour       none         42.71
none          default      41.87
none          none         41.08

Based on these results, I see a 10% improvement in latency - can be significant
if X is getting forwarded over an ssh connection. 




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