Chip boosts embedded security for IoT

"It's more important than ever to consider and plan the security architecture at the very beginning of the design and development of an IoT solution," Sigfox chief marketing officer Laetitia Jay.

STSAFE-A1SX is a secure element in 4x5mm and 2x3mm packages based on a tamper-resistant Common Criteria EAL5+.

Communicating over an I2C bus, they connect to a node's host microcontroller and provide device ID and keys that allow secure plug-and-play connection to the Sigfox. Whether the frame is an up-link or down-link message, this secure element generates or verifies payload proof of integrity as well as optional encryption or decryption.

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