ECU Secure Boot & OTA
Client: Energy Storage Company
Overview
Critical infrastructure demands firmware security that holds up over decades in the field. We designed a secure bootloader architecture for battery energy storage systems with hardware root of trust, encrypted OTA updates, and cryptographic verification across a distributed network of embedded controllers.
Project Details
- Client
- Energy Storage Company
- Industry
- Energy Storage
- Year
- 2023
The Challenge
Energy storage systems are critical infrastructure with 20+ year field lifetimes. A compromised firmware update could disable equipment or create safety hazards. The bootloader needed to enforce cryptographic verification of every update, work across multiple processor architectures, and remain practical for field service teams who need to deploy updates reliably.
The Solution
We implemented a chained bootloader architecture with trust anchored in MCU hardware security features. Firmware images are encrypted in transit and authenticated before execution using a robust PKI model. The design is portable across Cortex-M4 and Cortex-A8 processors, maintaining a consistent security posture across the entire product line while keeping field updates straightforward.
Technology Stack
"They covered all the bases one could ask for in a mission critical project. Detailed documentation, transparent schedules, and informative updates. If you need a team with in-depth firmware and embedded systems expertise, I highly recommend Readybit Labs."
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