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Re: joy of export, h/ware
>>What type of attack was used in the famous test? Known plaintext? It
>>gets a bit tougher in the real world doesn't it?
> Not really.
Even if you don't know what you're looking for? Help me out with that
> * PGPfone on a very fast cpu plus fast link is still less pleasant
> than a noisy cordless (no pun intended).
You trust PGPfone on commercial HW enough to do your spy work with it? A
system with dedicated audio compression ( http://www.dspg.com/ e.g. )
and a modem could probably be used to establish a secure, full-duplex
link over the POTS. A microP, possibly with a small gate array to accel
the crypto, would be able to handle the rest of job. Actually a pretty
simple product. It could even use your dial-up account and be your
internet phone. I know it has been done. I just won't be happy 'til it's
in 50 million homes.
> * We'd never take encryption hardware through the same path as modems,
> would we? First used between companies, then used for remote access,
> eventually you can't buy a bloody machine without one. Getting
> cheaper, faster, closer to the motherboard, taken for granted by
> applications. Ever seen a 300 baud, 40 lb modem, cost probably $3000
> in 1970 dollars?
Yes, I have. Fortunately encryption HW will not have to go through that
sort of process. The frontier has been tamed, there are freeways
everywhere - all you have to do is pick a lot and build. IOW - that 300
baud modem if done from scratch now would cost nowhere near $3000/unit.
> The final level of deployment is when garage-door-openers, car
> remotes, and childrens' toys (e.g., radio controlled cars) use
> encryption chips... or chips with encryption, anyway.
The time is ripe.
> The outside encrypting unit should also perform NAT, otherwise
> the PC (doing the tunnelling) can broadcast traffic ('trap and trace'
> in the pots world) info.
Clueless again! What is 'NAT'?
> Email is so low-bandwidth that software suffices.
Absolutely. The issue there is more one of trustworthy HW and SW. Back
to WINTEL/MICROSNORT. Again, !barf!.