Device enables more secure connected systems

2nd December 2016

Mick Elliott

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Datasheet

The ATECC508A CryptoAuthentication device from Atmel, now a part of Microchip Technology, is in stock at Mouser Electronics. Delivering ultra-secure cryptographic elements that enable more secure connected systems, the ATECC508A is ideal for a variety of IoT applications in the areas of home automation, industrial networking, IoT node security and ID, message security and authentication, ecosystem control, and anti-cloning.

The device can function as either a device 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.

It includes several security features, including optimised key storage and authentication functionality, Elliptic Curve Diffie–Hellman (ECDH) security protocol, and Elliptic Curve Digital Signature Algorithm (ECDSA) sign-verify authentication.

The device also includes 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 ATECC508A device is available in 8-pad UDFN, 8-lead SOIC, and 3-lead contact packages and delivers extremely low power consumption over a wide 2.0V to 5.5V supply voltage.

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

The ATECCC508A is compatible with any microprocessor or microcontroller including the Atmel SMART and Atmel AVR devices. It is supported by two development tools also available from Mouser: the CryptoAuthXplained Pro add-on board and the CryptoAuthentication USB Dongle Demo Evaluation Kit.