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A new criterion for avoiding the propagation of linear relations through an Sbox (Full version)
secret-key cryptography / Sbox Boolean function hash functions
2013/4/18
In several cryptographic primitives, Sboxes of small size are used to provide nonlinearity. After several iterations, all the output bits of the primitive are ideally supposed to depend in a nonlinear...
We propose a new criterion for judging zero quantum discord for arbitrary bipartite states. A bipartite quantum state has zero quantum discord if and only if all the blocks of its density matrix are n...