Capabilities
Industrial/Security
Secure Boot & OTA Lifecycle
HSM + OTPHardware Root of Trust · dm-verity · Encrypted OTA
⚠The Problem
Industrial and medical devices run for 10+ years in the field. Without a secure boot chain, any attacker with physical or network access can flash malicious firmware. Without signed OTA, a man-in-the-middle can push backdoors. The EU CRA (Cyber Resilience Act) now mandates this — non-compliance blocks market access.
Our Approach
- Hardware Root of Trust: OTP fuses → BootROM signature verification → signed U-Boot → signed kernel
- dm-verity: block-level kernel integrity verification — any tamper kills the system
- LUKS2 encrypted rootfs with TPM2-sealed key derivation
- Mender.io or SWUpdate delta OTA: only changed blocks transmitted, bandwidth optimized
- ISO 27001 DevSecOps: air-gapped signing server, HSM-protected private keys
Architecture Components
Boot Chain Stages
i.MX8M HAB
None4 (OTP→UBoot→Kernel→Root)
Rootfs Tamper
dm-verity
SilentImmediate panic
OTA Update Size
Mender / SWUpdate
Full imageDelta only
CRA compliance is now a market access requirement
Let's assess your current boot chain and design a full secure lifecycle architecture.
Schedule Architecture Audit