JackPair: Legacy-Compatible Encrypted Point-to-Point Voice

JackPair is a small widget which fits between your headset and your phone using the 3.5mm jack and encrypts your voice calls when you are talking to another JackPair user. Seems a really good design, without any secret sauce crypto, uses open hardware and software, and they need another $7,500 in the next day and a half to build it. Go and back them on Kickstarter :-)

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