Core engineering and protocols for Secure ECU Flashing & A/B Partitions.
Automotive software updates occur in variable environments: a vehicle might lose battery power, drive into a tunnel, or experience a network disconnect midway through writing flash memory. If an ECU is left in a partially written, unverified state, the vehicle becomes 'bricked' and inoperable, stranding passengers and requiring costly dealer towing.
OTACrypt utilizes A/B dual-partition flash memory architectures. The telematics gateway streams the encrypted update to the inactive 'B' partition while the vehicle continues normal operation on partition 'A'. Only after the cryptographic bootloader validates the post-quantum signature and integrity of partition 'B' is the hardware boot pointer safely updated.