Don't some IoT devices use static parameters?
Like while claiming an ephemeral ECDH key, it is actually only generated once when the device is provisioned? (Or worse, the same on every device of that series)
Like while claiming an ephemeral ECDH key, it is actually only generated once when the device is provisioned? (Or worse, the same on every device of that series)
But here's something that mentions semi-static 0 round trip session setup
https://www.cs.virginia.edu/dwu4/papers/PrivateIoT.pdf
as well as what goes wrong when you do reuse things
https://www.math.uwaterloo.ca/~ajmeneze/publications/ephemer...