2b7e1516 28aed2a6 Abf71588 09cf4f3c 2024 Tacoma. Aes is an implementation of the advanced encryption standard (aes) in c, in accordance with the standard published in 2001 and the aes submission document on rijndael originally. Permutation table as illustrated in figure 2, the permutation table is.
In practise, you implement mix columns by expressing the transformation on each column as 4 equations (stallings equation 5.4) to compute the new bytes for that column. The problem in your code is that your are not treating the message or key 2b7e1516 28aed2a6 abf71588 09cf4f3c as a hex number which it is in this case but you are treating it as bytes.