Secure Remote Firmware Updates - An Overview

It is fairly clear that modern product development is not a one-off activity. Generally, customers across application domains expect the purchased devices to have a long-life span and to be maintained by product vendors. OEM’s need to keep updating their device features as a way of staying ahead of the curve. Further with increasing IoT based cyber-attacks, rolling out security patches and occasional bug fixes, it is important to remotely upgrade the embedded devices in the field. For over a decade, Embien has amassed a huge knowledge in product management and has been helping product developers perform secure remote firmware updates. We have implemented numerous Secure FOTA (Firmware Over the Air) Update mechanisms, customized to different industries and use cases. Our services have provided a significant advantage to our clients by positioning their product above competition.

TECHNICAL EXCELLENCE

FEATURES

Full / Incremental updates, Image A/B Model, Roll back on failure

INTERFACES

USB, CAN, UART, RS232, RS485, BLE, Wi-Fi, LoRa, Ethernet etc

AUTHENTICATION

Ciphers and hashing algorithms like AES, RSA, ECDSA, SHA-2 etc

SOURCES

Amazon S3, Azure Cloud, AWS Cloud servers, GCP, HTTPS, MQTT, AMQP

Enhance your product quality and assurance

Our Secure FOTA designs leverage the mathematical strengths of asymmetric cryptographic algorithms to validate the firmware. The firmware image to be updated is signed with a private key that is securely stored & authenticated by the public key in the devices. With our Secure boot designs, the chain of trust is established right from the first code executed, thereby preventing any possibility of modifying the public key. In this way, it is impossible for a third party to spoof the image.Our Secure Firmware Update mechanism span different class of devices right from low end 8-bit, 16 bit and ARM Cortex M MCUS to powerful NXP iMx, TI, NVIDIA Jetson, Snapdragon powered Linux/Android systems. Get in touch with us to transform your product management with our Secure Firmware Update services.

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