Johansson wrote: > How could I protect it against erase? All PICs can be erased, can't they? > And if they can't, the attacker could replace the PIC for a new one, and > put the spoofed bootloader into that new PIC. So what is it, exactly, that you're trying to secure? It's starting to sound like you haven't fully thought this through. -- Dave Tweed -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist