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Re: Crypto Regulation Reform
Perry E. Metzger sez:
>
> > Uhh, could you tell us? Sounds like quite a breakthrough. Credit
> > card sized? Much cheaper than a modem, like $50 maybe? And it
> > digititizes and securely encrypts speech (full duplex?) on the fly?
>
> By definition anything that does this in the digital domain needs a
> modem, so it can't be cheaper than a modem. None of the analogue
> methods are going to be terribly secure.
Remember that a "modem" such as we are used to is a much more complex
device (at least the firmware, and you do pay for that :-) than what is
required for simply modulating and demodulating a fixed rate, framed
bit stream.
Today's modem chip sets invariably have a general purpose microprocessor
to do all the Hayes type stuff and a DSP to do the actual bit stream
modulation/demodulation (and digital filtering and echo cancelation,
etc.) where my device can be the DSP alone and requires no RS232 ports
or the like. This will result in a saving. In short, what is
required for a voice-only device such as I am initially thinking about
is a subset of what is required for a computer modem.
Peace,
Bob
--
Bob Cain [email protected] 408-354-8021
"I used to be different. But now I'm the same."
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