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In this paper, we present One-key CBC MAC (OMAC) and
prove its security for arbitrary length messages. OMAC takes only one
key, K (k bits) of a block cipher E. Previously, XCBC requires three
keys,...
OMAC, TMAC and XCBC are CBC-type MAC schemes which are provably
secure for arbitrary message length. In this paper, we present a more tight upper bound on
Advmac for each scheme, where Advmac denote...
We present an improved security analysis of OMAC, the
construction is widely used as a candidate of MAC or Pseudo Random
Function (or PRF).