> a) I believe physical media will always have higher bandwidth than > broadband - why? Because you have to feed the broadband from somewhere, > and archive it somewhere.
You can use an expensive physical medium to drive your transmission. If you sell atoms, you have to use a cheap medium. > It seems to me that putting the details of the purchaser in plaintext on > the beginning of the file and making it illegal to remove it is as good > a protection as you are ever going to get - but that would ruin a whole > bunch of business plans, so I guess no "expert" is going to admit that. On this, I agree. Just like some more mundane security issues, you can heap endless layers of mummery and confusion on top, but at the bottom you often find a "secret" in long-term storage in the clear. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]