The STM32F415 has crypto acceleration functions. While it has been mentioned that cryptography is a bit much for these small devices, what is the limitation that keeps them from doing such? Is it the amount of memory, cpu speed or something else?
You can use RLP or compile the entire firmware with your changes.
@ Gus, So AES256 would work on a simple fez device like the cerbuino?
Assuming the device has the chip with the accelerator, which we didn’t but I thought you are using the discovery board for example.
There are MANY crypto algorithms that will run on curb, starting with XTEA. AES should also work, and you do not need the accelerator. That is needed to speed things up.