Re: Fwd: Tor security advisory: DH handshake flaw

2005-08-30 Thread Ben Laurie
Simon Josefsson wrote: No, the certificate is verifiable in deterministic polynomial time. The test is probabilistic, though, but as long as it works, I don't see why that matters. However, I suspect the ANSI X9.80 or ISO 18032 paths are more promising. I was just tossing out URLs. Surely Mil

Re: Another entry in the internet security hall of shame....

2005-08-30 Thread Stephan Neuhaus
Peter Gutmann wrote: And that's it's killer feature: Although you can still be duped into handing out your password to a fake site, you simply cannot connect securely without prior mutual authentication of client and server if TLS-PSK is used. If I have understood the draft correctly, using PSK

Re: Another entry in the internet security hall of shame....

2005-08-30 Thread Peter Gutmann
"James A. Donald" <[EMAIL PROTECTED]> writes: >From: [EMAIL PROTECTED] (Peter Gutmann) >> TLS-PSK fixes this problem by providing mutual >> authentication of client and server as part of the key >> exchange. Both sides demonstrate proof-of- possession >> of the password (without actually communica