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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...