Crypto device upgrades connected systems security

25th April 2023
Mick Elliott

The ATECC608B CryptoAuthentication device from Microchip Technology is now being shipped by distributor Mouser Electronics.

Delivering ultra-secure cryptographic elements that enable more secure connected systems, the ATECC608B is ideal for a variety of Internet of Things (IoT) applications in the areas of home automation, industrial networking, IoT node security and ID, message security and authentication, medical devices, ecosystem control, and anti-cloning.

The device can function as either pre-loaded with cryptographic keys, keeping the keys securely stored within embedded and IoT devices, or as a cryptographic co-processor, executing strong cryptographic algorithms without burdening the resources of the host microprocessor or microcontroller.

Several security features, include optimised key storage and authentication functionality, ECDH security protocol, and ECDSA sign-verify authentication.

Also included is a 256-bit SHA/HMAC hardware engine, a 10.5-kbit EEPROM for secret and private keys, and a guaranteed 72-bit unique ID.

The ATECC608B device is currently available in 8-pad UDFN, 8-lead SOIC and 3-lead contact package options and delivers extremely low power consumption over a wide 2.0 V to 5.5 V supply voltage.

The device integrates into a hardware design alongside the host microprocessor and interfaces directly to the host over the I²C bus.

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