ATECC608B-SSHDA Cryptography co-processor, AES-128, SHA-256, 2 - 5.5 V, SO-8

Cryptography and authentication security building block

Key features • Cryptographic co-processor with secure hardware-based key storage • ECDH: FIPS SP800-56A Elliptical curve Diffie-Hellman (ECDH) • Support for NIST standard P256 for elliptical curves (ECC) • Hardware support for symmetric algorithms • SHA-256 & HMAC hash including off-chip contextual storage/recovery • AES-128: Encrypt/decrypt, Galoisfeld multiplication for GCM • Support network key management • Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3 • Ephemeral key generation and key agreement in SRAM - encryption of small messages with fully protected keys • Support for Secure Boot

Technical features 2 - 5.5 V supply voltage 1.8 - 5.5 V level for inputs and outputs

Application examples • Key management and exchange for IoT network endpoints • Encryption for personal data (PII) • Secure boot and protected download • Ecosystem control, anti-cloning