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More security
11/23/2017 at 12:46 • 0 commentsI have been playing with RWeather's great Crypto libraries for Arduino. In order to protect from MiTM attacks, I've tested signing on top of the DH key exchange. Then, tested encryption using the ChaCha algorithm which seems very fast. All satisfying results. The key exchange plus signing and verifying takes around 3 seconds on the Syxsens boards (BTW the green one is an earlier prototype). This can be a good base to develop a point to point protocol for LoRa which can be chained from node to node.
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ECDH tested
11/10/2017 at 15:52 • 0 commentsJust completed Elliptic Curve Diffie Hellman key exchange using LoRa. Works great between two nodes.