Curve25519 Zephyr supervisor for STM32L0: derives per-boot AES/MAC keys, encrypted reset/watchdog state, dual-heartbeat SLAs, safe-mode recovery. Includes native_sim+hardware tests, release logs, provisioning overlay auto-persist tooling, a security backlog, and GitHub Actions CI to keep 8 KB Cortex-M0 nodes audit-safe.
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Updated
Dec 19, 2025 - C