🔐 Cryptography & Secure Hardware
Secure element integration (ATECC608A), ECDSA signing, air-gapped key management, and anti-tamper design on constrained embedded platforms.
Overview
Hardware-rooted cryptography on constrained MCUs: secure elements, ECDSA signing, air-gapped key management, and anti-tamper design.
Challenge
Strong cryptography is well understood on servers; making it practical on low-power MCUs — with acceptable latency, real key isolation, and resistance to physical attack — is much harder and directly relevant to real devices.
Approach
Where I've worked on this:
- Integrated an ATECC608A secure element for ECDSA key management in an air-gapped multi-chain hardware wallet
- Built an offline QR air-gap signing workflow
Open questions: side-channel resistance on constrained platforms and formal evaluation of air-gapped signing channels.
Results
Direction: rigorous security evaluation of hardware-rooted signing on low-power MCUs.
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