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Voice encryption
Say - why is it cypherpunks instead of cipherpunks? - its hard to remember!
Unicorn> I would like someone with enough technical background to design
and build a prototype IDEA/DES/RSA device suitable for voice
encryption using modular phone jacks and plugs.
Well now, I do that for a living. It isn't exactly cheap. The phone
jack would probably be to a high speed modem, 14,400 or higher. The
other side would be to a E&M (4 wire) jack attached to a handset.
The rest is just an AtoD and DtoA converter and amps, probably with
a compander, try intel 29xx chips. This gives a 64kbps full duplex
data stream that needs compressed to the modem speed, probably with
LPC - linear predictive coding. The DES or IDEA would need to
operate at modem speeds - full duplex. How much you want to pay?
Peace