Talk:CMAC

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[edit] Article name avialable?

"It has been suggested that this article or section be merged with One-key MAC."

Does that mean the entry "CMAC" would be free to use for the Cerebellar Model Articulation Controller (a type of neural network classifier) ? Dcornforth 09:59, 28 November 2006

Yes, once the merge has been done it should be okay to use the name for the neural network thing, especially if we ad a disambig link at the top of the article to the One-key MAC article and fix all incoming crypto related links so they go to the One-key MAC article instead. For now I suggest you use the title Cerebellar Model Articulation Controller and ad a disambig link at this article (CMAC) to the neural article. Sorry that I don't have time to do the merge. I hope some other crypto editor has the time some day. --David Göthberg 03:56, 5 December 2006 (UTC)

[edit] Finite field?

C = 1010₂ in the example does not give rise to a finite field, because x⁴ + x³ + x is not irreducible modulo 2. As a consequence the low-order bit of k₁ and k₂ will always be 0. Surely this is not intended? There ought to be a remark in the article that C must be chosen with some care to ensure that entropy is not lost in the multiplication step. –Henning Makholm 11:33, 5 May 2007 (UTC)

In fact the choice specified by NIST 800-38B implies that the four-bit C must be 0011₂. I will change the example accordingly. –Henning Makholm 11:49, 5 May 2007 (UTC)