On Sun, 8 Sep 2013, Perry E. Metzger wrote: > What's the current state of the art of attacks against AES? Is the > advice that AES-128 is (slightly) more secure than AES-256, at least > in theory, still current?
I am not sure what is the exact attack you are talking about, but I guess you misunderstood the result that says: "the attack works against AES-256, but not against AES-128" as meaning that AES-128 is more secure. It can be the case that to break AES-128 the attack needs 2^240 time, while to break AES-256 it needs 2^250 time. Here AES-128 is not technically broken, since 2^240 > 2^128, but AES-256 is broken, since 2^250 < 2^256, OTOH, AES-256 is still more secure against the attack. -- Regards, ASK _______________________________________________ The cryptography mailing list email@example.com http://www.metzdowd.com/mailman/listinfo/cryptography