Posted: 4/14/2013 10:46:22 AM EDT
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Consider the android app "redphone" that basically just encrypts a VOIP call between the IP addresses of each cellphone; it doesnt encrypt actual cellular voice calls. Why not make it such that the app intercepts the voice between the mic and vocoder and then does an ADC followed by encryption then gives the cleartext stream to the vocoder?
Obviously a public key exchange followed by then-encrypted symmetric key exchnage would still have to happen over the IP section before voice could be encrypted. I bet people would pay for an app such as this. Or is it illegal to do this? |
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