for those of you(like me) wondering where this apparently spooky constant is coming from, it is a bitstring of the coefficients of the lexically first irreducible polynomial of degree b with the minimum possible number of non-zero terms, where b is the block size(in bits) of the underlying block cipher with which CMAC is instantiated. So, nothing up the sleeve here.
for those of you(like me) wondering where this apparently spooky constant is coming from, it is a bitstring of the coefficients of the lexically first irreducible polynomial of degree b with the minimum possible number of non-zero terms, where b is the block size(in bits) of the underlying block cipher with which CMAC is instantiated. So, nothing up the sleeve here.