Re: Any TLS server key compromises?

[Sean Smith]

has a TLS server (or client, for that matter) key ever actually been 
compromised?

Hi, Marc!
I don't know about in-the-wild attacks.
However, proof-of-concept attacks:
Server-side: Brumley and Boneh did timing attacks on Apache SSL 
servers---see their Usenix Security paper from 2003.

Client-side: we've done a number of host-based attacks and http-based 
attacks, to steal or borrow use of a user's client-side SSL/TLS key.  
See:

 J. Marchesini, S.W. Smith, M.Zhao.
"Keyjacking: The Surprising Insecurity of Client-side SSL"
Computers and Security.  To appear, 2004.
http://www.cs.dartmouth.edu/~sws/abstracts/msz04.shtml
--Sean
Sean W. Smith [EMAIL PROTECTED]  www.cs.dartmouth.edu/~sws/
 Asst Prof, Department of Computer Science, Dartmouth College.
 Director, Cybersecurity and Trust Research Center, Institute for 
Security Technology Studies.

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