RE: Diffie-Hellman key exchange : Preventing MITM attack

2009-08-29 Thread David Schwartz
> No. Without a previously arranged shared secret and no trusted introducer, > authentication is *impossible*. Authentication is an act of recognizing > a party that posesses something you can verify. You CAN NOT generate > authentication secrets on the fly. > Viktor. Or, to put it in simp

Re: Can I set the client hello challenge externally?

2009-08-29 Thread Victor Duchovni
On Sat, Aug 29, 2009 at 12:09:18AM -0700, Rene Hollan wrote: > > Right, that's what I figured. Trouble is, if I chose TO proxy, they I > must have my peer to the remote server act as if it sent the same client > hello so as to have the same challenge bytes. AFAIK, there is no openssl > mechanism

RE: Can I set the client hello challenge externally?

2009-08-29 Thread Rene Hollan
Right, that's what I figured. Trouble is, if I chose TO proxy, they I must have my peer to the remote server act as if it sent the same client hello so as to have the same challenge bytes. AFAIK, there is no openssl mechanism to set this prior to sending a client hello. -Original Message--