Newbee ..- encrypted calls/SMS

Flemming Richter Mikkelsen quatrox at
Fri Apr 25 15:36:41 CEST 2008

> There are no simple voice transforms at all that will get through the codec,
> and actually encrypt.
> Voice changing is possible, but encryption is not.
> You _cannot_ - for example - exepect frequency inversion - to get through
> the codec chain.

What about correlating (multiplying) the input signal with a
different signal (encoding) and in the other end extract your
signal (decoding) by removing the added signal?

Please don't send me Word or PowerPoint attachments.

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