A chipAn electronic device made on a piece of silicon. These days, it could also involve a mechanical chip, but, to the outside world, everything looks electronic. The chip is usually in some kind of package; that package might contain multiple chips. "Integrated circuit," and "IC" mean the same thing, but refer only to electronic chips, not mechanical chips. of some sort that stores securityRefers to whether or not IoT devices or data are protected from unauthorized viewers. artifacts like keysA number used to encrypt (or encode) information so that no one can read it. Keys are used when encoding and decoding. You shouldn't have to mess with keys yourself. and certificates. It can perform the security operations itself so that those artifacts never have to (and can never) leave the chip.
Inside the Internet of Things - Bryon Moyer Blog