The dh small subgroup confinement attack and Tor

[Ringo]

Hey Tor,

I was watching a presentation today
(http://www.youtube.com/watch?v=ySQl0NhW1J0) and saw that this attack
applied to some of the cryptography Tor uses. I googled around and
couldn't find any information about where this attack would apply in Tor
or if it had been fixed. It could be that this attack would still apply
but that the way Tor implements the crypto, it's risks are negated.


Is there anybody who can clear up my confusion?

Thanks,
Ringo