The Microchip ATECC608A integrates ECDH (Elliptic Curve Diffie Hellman) security protocol an ultra-secure method to provide key agreement for encryption/decryption, along with ECDSA (Elliptic Curve Digital Signature Algorithm) sign-verify authentication for the Internet of Things (IoT) market including home automation, industrial networking, medical, as well as accessories and consumables authentication and more.

Cryptographic co-processor with secure hardware-based key storage
Protected storage for up to 16 Keys, certificates or data
Hardware support for asymmetric sign, verify, key agreement
Hardware support for symmetric algorithms
Networking key management support
Ephemeral key generation and key agreement in SRAM
Secure boot support
Full ECDSA code signature validation
Encryption/Authentication for messages to prevent on-board attacks
Two high-endurance monotonic counters
Guaranteed unique 72-bit serial number