1. 7
  1.  

  2. 3

    This is why the security architectures not trusting anything outside CPU were playing it smart. They typically do checks on crypto-protected RAM and HD storage. Microsemi’s CodeSeal is a production example. Edminson has a nice survey in his paper that also introduces his design:

    http://scholar.lib.vt.edu/theses/available/etd-10112006-204811/unrestricted/edmison_joshua_dissertation.pdf