FIELD NOTES · INDEX

Field notes.

Short pieces on the work. Depth over volume.

• 2026-03-12ON-DEVICE

  Implementing X.509 device identity in Zephyr

  A walk through how we ship per-device X.509 identity on a Zephyr-based product, from factory provisioning to TLS mutual auth — and what we had to unlearn along the way.

• 2026-02-04CONNECTIVITY

  Why LoRaWAN + PKI is harder than it looks

  LoRaWAN's security model assumes a provisioning environment that doesn't exist in most real deployments. Here's how we close the gap without bolting on a second protocol.

Subscribe via RSS →