The original claim was that these parts were rare because of ITAR. They aren't rare, and ITAR doesn't have much to do with where they're present or absent. Shifting the argument to a different point about a specific accelerator or specific class of parts is exactly as I said: moving the goalposts.
The question of whether they're user programmable or not is nearer to the mark because EAR cares about it, but it still doesn't present a formidable barrier-- at least, I've been shipping parts with crypto accelerators at various levels of user configurability for a long time, and so has everybody else.
The question of whether they're user programmable or not is nearer to the mark because EAR cares about it, but it still doesn't present a formidable barrier-- at least, I've been shipping parts with crypto accelerators at various levels of user configurability for a long time, and so has everybody else.