Generating AES (AES-256) Lookup Tables

Question

I am trying to implement AES-256 in CTR mode using nVidia CUDA. I have successfully coded CPU code for key expansion and now I need to implement the actual AES-256 algorithm

Answer 1

The T tables are a straightforward description of the AES round transformation in matrix form. To build them, see the original Rijndael NIST proposal, section 5.2.1.

Answer 2

In case anyone is still interested, these lookup tables can be found in the standard library of the Go programming language - http://golang.org/src/crypto/aes/const.go#L80

There are also instructions on how to generate the tables in the test files of the same package.