The OMAC reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

OMAC

OMAC or One-Key MAC is a message authentication code constructed from a block cipher much like the PMAC algorithm.

Officially there are two OMAC algorithms OMAC1 and OMAC2 which are both essentially the same except for a small tweak. OMAC1 is drafted to become a NIST standard and is free for all uses (no patents).

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OMAC ('One-Man Army Corps') was a superhero comic book created by Jack Kirby and published by DC Comics.

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