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Difference between revisions of "Tutorial A8 32bit AES"
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Revision as of 04:05, 18 July 2017
Most of our previous tutorials were running on 8-bit modes of operation. We can target typical implementation on ARM devices which actually looks a little different.
This tutorial is ONLY possible if you have an ARM target. For example the UFO Board with the STM32F3 target (or similar).
Background
A 32-bit machine can operate on 32-bit words, so it seems wasteful to use the same 8-bit operations. Indeed we can speed up the AES operation considerably by generating several tables (called T-Tables), as was described in the book The Design of Rijndael which was published by the authors of AES.
