[ovoxo]

Ahh ok - great explanation btw.

I'm still curious how this glass is produced. It seems to me that you would be introducing many more potential intrusion points by using physical encryptors since many more parties (people, databases, and systems) will be aware of the details in order to produce the appropriate slab. Having said that, the same thing would apply for any other physical encryptor that would have to be manufactured.

[duaneb]

I'm also interested in how they introduce quality entropy into the glass. It's well-researched algorithmically, but are material researches up to it? Even subtle patterns could lead to within brute-force distance.