I need to encrypt files (on a PC) roughly 0x400000 in size and then decrypt on the SitCore device. I implemented XTEA with a single pass, and this roughly takes 1.5 min on SitCore to decrypt. (TinyCLR Preview 5). RC4 takes 6 min (lol)
I know the H7 used doesn’t have any hardware accelerated cryptography. Is XTEA still the best option for my use case?