The latest capability to be added to ManuvrOS is a uniform cryptographic layer with test-coverage. I have plans to make this asynchronous and pluggable-at-run-time to facilitate non-blocking hardware access for TPM modules and secure storage.
Additionally, the cryptographically-backed notions of identity are taking shape, and also have test-coverage.
Current support is via mbedTLS, but extension to other embedded cryptography stacks are stubbed out.
While I've been in the crypto-trenches, I wrote-up an introduction to DTLS. I have been hard at work building IoT test fixtures with it. More to come on the security front...
Daily development happens in this fork: