Topic "WinSCP much slower than pscp -scp"

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benh57
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Joined: 2007-10-10
Posts: 4
Putty 0.60's "pscp.exe -scp" gets me about 2,000 kB/sec of speed over WinSCP (using SCP) 4.0.4 with default connection settings. (force SCP on)

Could this be beacuse WinSCP is using an older version of putty code? Any plans to integrate 0.60?

thanks,

-Ben
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martin
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Joined: 2002-12-10
Posts: 25016
Location: Prague, Czechia
Can you try the same with PuTTY 0.58, just to verify that the integration would have a speed benefit?
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Martin Prikryl
benh57
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Joined: 2007-10-10
Posts: 4
Haven't tried the 0.58 putty - i don't think that was it.

I think we figured this out. WinSCP was defaulting to AES. Blowfish is MUCH faster. I suspect pscp is defaulting to blowfish. (haven't checked, though)

Blowfish is plenty secure for us, so we just disabled AES on the server. blowfish gets used as fallback by winscp.
martin
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Location: Prague, Czechia
benh57 wrote:
I think we figured this out. WinSCP was defaulting to AES. Blowfish is MUCH faster. I suspect pscp is defaulting to blowfish. (haven't checked, though)

PSCP also uses AES be default.

Quote:
Blowfish is plenty secure for us, so we just disabled AES on the server. blowfish gets used as fallback by winscp.

You can change the algorithm on SSH tab of login dialog.
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Martin Prikryl
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