Microchip ATECC608B-SSHDA-B 8-Pin Crypto Authentication IC SOIC

The Microchip ATECC608B series high-security cryptographic device combine world-class, hardware-based key storage with hardware cryptographic accelerators to implement various authentication and encryption protocols. It provides security enhancements over that of the ATECC608A, while providing complete backwards compatibility. All configuration settings, commands, packages and functionality of the ATECC608A are still available in the ATECC608B, making migration from the ATECC608A a simple process.

• 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
• ECDSA FIPS186-3 elliptic curve digital signature
• NIST standard P256 elliptic curve support
• Hardware support for symmetric algorithms
• SHA-256 & HMAC hash including off-chip context save/restore
• AES-128 Encrypt/decrypt, galois field multiply for GCM
• Networking Key management support
• Turnkey PRF/HKDF calculation for TLS 1.2 & 1.3
• Ephemeral key generation and key agreement in SRAM
• Small message encryption with keys entirely protected
• Secure boot support
• Full ECDSA code signature validation, optional stored digest/signature
• Optional communication key disablement prior to secure boot
• Encryption/Authentication for messages to prevent on-board attacks
• Internal high quality NIST SP 800-90A/B/C random number generator (RNG)
• Two high endurance monotonic counters