Currently, AWS users must pre register their security authority so a trust model can be established. Then, each IoT device they must generate unique cryptographic keys and these keys must remain secret. Microchip says this can be a challenge for volume production.
The security solution handles this process during three production steps. First, the AT88CKECC kit will allow customers to meet the AWS security standard and connect to the AWS IoT platform during evaluation and engineering. It assists with meeting security standards during prototyping and pre production and can be customised for production.
The device is soldered on a board and connected via I2C to the host MCU, which runs an AWS Software Development Kit. There is said to be no need to load the keys and certificates required for authentication during manufacturing as the AWS-ECC508 will be recognised by AWS without any intervention. All necessary information is contained in a crypto companion device measuring 3 x 2mm.
