In short, tamper resistant hardware isn’t.
And oh yah, like most security systems
where the weakest link of the chain determines the over all level of success,
well, the link between computers and humans is real hard to protect.
Somewhere there is a great rant about
DRM. Effectively it says that DRM works like this. For people we want to read
the content, we give theme the encrypted content and they keys. For people we
don’t want to read the content, we give them the encrypted content and, get
this, the keys. Then we are surprised by the results.