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Revisiting Structure Graph and Its Applications to CBC-MAC and EMAC
CBC EMAC structure graph
2016/2/23
In Crypto'05, Bellare et al. proved O(Гq2/2n) bound for the PRF (pseudorandom function) security of the CBC-MAC based on an n-bit random permutation バ, provided Г<2n/3. Here an adversary can make at m...
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,...
An improved collision probability for CBC-MAC and PMAC
MAC CBC-MAC PMAC Distinguishing attack
2008/9/18
In this paper we compute the coliision probability of CBC-MAC [3] for suitably chosen
messages. We show that the probability is (`q2=N) where ` is the number of message block, N
is the size of ...