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If NSA can't decrypt TLS why don't we use it to encrypt phone calls [on hold]

If an individual can convert his voice into Internet traffic using a simple combination of hardware and software what stop governments from using it and avoid NSA spying on them? To clarify: Since ...
1
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0answers
354 views

Does ZRTP provide useful protection, given that the SAS is not verified?

Firstly, some important backstory. I'm producing a corporate version of an IM/VOIP/Screensharing client using the Open Source Jitsi. We are going to be using a central server and have already ...