One of the main properties of the TCPA/Palladium architecture is the (asserted) ability to limit information leaking to "untrusted" parties.
In what way does this affect the appearance of computers as we know them today? It certainly means more than that you can't simply forward copyright protected informations by email in plaintext. I remember that about 20-25 years ago I read in one of the early computer magazines a proposal how to build a cheap printer from a plain electrical typewriter by attaching a board with electromagnetically operated punchers onto the keyboard without any modification (!) of the typewriter itself. Assumed that a "trusted" computer is completely sealed, it still needs some kind of human interface, probably a mouse, a keyboard, and a screen (otherwise whould be questionable what to pay for). Even if the computer is tamperproof, you still could attach such a board simulating your fingers on the keyboard and a camera in front of the screen doing OCR. Should not be much of a problem to teach an untrusted Linux box to read from a trusted sealed machine, reading an e-book page by page. As a consequence, it is not enough to just encrypt the connection between the computer and the monitor or the keyboard. An encryption of the connection between the computer and the authorized person itself is needed. The solution would be to implant chips in one's head and to connect them to the eye and ear nervers, thus injecting the decrypted information directly into the brain. This also solves the problem that when a person who has paid reads an e-book, always other persons who didn't pay could watch too. Of course, "blue screens" become a much more intense experience once they can happen directly in your head and completely shut down your visual and acoustical perception. Hadmut --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]