[Bodo Moeller <bodo at openssl.org>] OpenSSL Security Advisory: Timing-based attacks on SSL/TLS with CBC encryption

[Steven M. Bellovin]

I'm struck by the similarity of this attack to Matt Blaze's master key 
paper.  In each case, you're guessing at one position at a time, and 
using the response of the security system as an oracle.  What's crucial 
in both cases is the one-at-a-time aspect -- that's what makes the 
attack linear instead of exponential.


		--Steve Bellovin, http://www.research.att.com/~smb (me)
		http://www.wilyhacker.com (2nd edition of "Firewalls" book)



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