Cipher 'none'

[Pekka Savola]

On Sat, 14 Oct 2000, Damien Miller wrote:
> Seriously, some of the ciphers offered by SSH2 are pretty fast. These
> are the times it took to scp a 100Mb file to /dev/null via ssh2 over
> localhost:
> 
> P166
> 
> 3des-cbc: 232 sec 431kbps
> blowfish-cbc: 90 sec 1.1Mbps
> arcfour: 71 sec 1.4Mbps
> 
> P3/700
> 
> 3des-cbc: 47 sec 2.1Mbps
> blowfish-cbc: 18 sec, 5.5Mbps
> cast128-cbc: 18 sec, 5.5Mbps
> arcfour: 12 sec 8.3Mbps

I did similar tests on my P2/266 system to see how fast aes128-cbc and
rijndael128-cbc were.  These were conducted with a 10 MB data off
/dev/urandom:

arcfour         3.1 MB/s
blowfish-cbc    2.2 MB/s
cast128-cbc     2.1 MB/s
aes128-cbc      1.6 MB/s
rijndael128-cbc 1.6 MB/s
3des-cbc        0.8 MB/s

(I timed scp to localhost using an empty file to get the authentication
overhead, then timed with the real file)

-- 
Pekka Savola                 "Tell me of difficulties surmounted, 
Pekka.Savola at netcore.fi      not those you stumble over and fall"