Mouser offers Atmel’s CryptoAuthentication for IoT security

Distributor, Mouser now stocks the ATECC508A CryptoAuthentication device from Atmel, now a part of Microchip Technology. The secure cryptographic elements enable more secure connected systems, says the company, for IoT applications in home automation, industrial networking, IoT node security and ID, message security and authentication, medical devices, ecosystem control, and anti-cloning.

The ATECC508A CryptoAuthentication can function be pre-loaded with cryptographic keys, keeping the keys securely stored within embedded and IoT devices, or supplied as a cryptographic co-processor, which execute cryptographic algorithms without affecting the resources of the host microprocessor or microcontroller.

Security features include optimised key storage and authentication functionality, Elliptic Curve Diffie–Hellman (ECDH) security protocol, and Elliptic Curve Digital Signature Algorithm (ECDSA) sign-verify authentication. There is also a 256bit SHA/HMAC hardware engine, a 10.5kbit EEPROM for secret and private keys, and a guaranteed 72bit unique ID.

The ATECC508A device is available in eight-pad UDFN, eight-lead SOIC, and three-lead contact packages. Operating over 2.0 to 5.5V supply, it integrates into a hardware design alongside the host microprocessor and interfaces directly to the host over the I2C bus. It is compatible with any microprocessor or microcontroller, including the Atmel SMART and Atmel AVR devices.

The ATECC508A is supported by two development tools also available from the distributor, namely the CryptoAuth Xplained Pro add-on board and the CryptoAuthentication USB Dongle Demo-Evaluation Kit.

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