I actually don't know if this is the right place where ask, but I try. The side channel attacks aren't a negligible problem. There are several ways to protect from these attacks its own IP inside the FPGA. My problem/curiosity it's focused on the AES engine inside the FPGA. The most important FPGA companies have an AES engine on silicon to decrypt the bitstream during the programmation of the device. In your knowledge, are there FPGAs more secure than others ? Is it possible to perform a side channel attack to the AES decrypter inside the FPGA ?