Tomu, being a ARM M0 core, might take some time to compute ECC signatures, but it is probably fine in practice. Our code is designed to be small and portable,

Tomu, being a ARM M0 core, might take some time to compute ECC signatures, but it is probably fine in practice. Our code is designed to be small and portable, so I think it could easily be run on the Tomu. Just need some work to change the USB drivers stuff.