New answers tagged

7 votes

AES with a different implementation of byte substitution step

If this is the mapping for the Sbox then $$ S(a\oplus b)=S(a)\oplus S(B),$$ i.e., we have a linear Sbox. If you add two vectors and shift it is the same result as shifting them first then adding. ...
user avatar
  • 16.7k

Top 50 recent answers are included