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by sweis 6075 days ago
Yes, they're certainly faster than HMAC.

I've found that OCB is faster than CCM or EAX because it's only one pass, but unfortunately is patented. It can be used under the GNU GPL, though.

Phil Rogaway considers EAX to have been "supplanted by SIV". I'm not sure if I agree with that, but do like SIV for applications requiring deterministic, authenticated output with tight length overhead.