ATECC608B - SSHDA - T: Microchip's Crypto - Authentication Powerhouse

The ATECC608B - SSHDA - T is a high - performance crypto - authentication chip introduced by Microchip, offering robust protection for a wide range of applications demanding top - notch security.
1. Key Features
Rich Cryptographic Algorithm Support
Asymmetric Algorithms
It supports ECDSA (FIPS186 - 3 Elliptic Curve Digital Signature) and ECDH (FIPS SP800 - 56A Elliptic Curve Diffie - Hellman key - agreement algorithms). Utilizing the NIST standard P256 elliptic curve, it can efficiently perform operations like digital signatures and key - agreement, ensuring the security and integrity of data transmission.
Symmetric Algorithms
The hardware - supported SHA - 256 and HMAC hash algorithms enable efficient message digest calculation and identity verification. Additionally, it supports AES - 128 encryption/decryption, along with Galois field multiplication for GCM, providing strong support for data encryption.
Comprehensive Security Functions
Key Management
It can store up to 16 keys, certificates, or data. It supports PRF/HKDF calculations for TLS 1.2 and 1.3, and can generate transient keys and perform key - agreement in SRAM, ensuring secure key management and usage.
Secure Boot
With full ECDSA code - signature verification capabilities, it can disable communication keys before a secure boot. It can also encrypt/verify messages to prevent on - board attacks, safeguarding the device startup process.
Random Number Generation
The built - in high - quality Random Number Generator (RNG) compliant with NIST SP 800 - 90A/B/C standards can generate high - quality random numbers, which are fundamental for operations like key generation.
Unique Identification
Each chip comes with a unique 72 - bit serial number, which can be used for device identification and anti - counterfeiting.
Flexible Communication Interfaces
It provides a high - speed single - wire interface with one GPIO pin and a 1 MHz standard I²C interface. This meets the communication needs of different application scenarios and facilitates connection with various master control chips.
2. Technical Specifications
Package Type: 8 - pin SOIC package.
Operating Temperature Range: - 40°C to + 85°C.
Supply Voltage: 2.0V to 5.5V.
IO Level: 1.8V to 5.5V.
Sleep Current: Less than 150nA.
3. Application Areas
Internet of Things (IoT)
In scenarios such as smart homes and industrial IoT, it can be used for key management, data encryption, and identity authentication of IoT devices. This ensures secure communication between devices, preventing data leakage and tampering.
Medical Devices
It can safeguard the confidentiality and integrity of medical device data, such as patient medical records and diagnostic data. At the same time, it ensures the security of the device firmware, preventing malicious attacks from affecting the normal operation of medical devices.
Industrial Automation
In industrial control systems, it can protect critical data and communication security, prevent industrial networks from being attacked, and ensure the stability and reliability of the production process.
Automotive Electronics
It is suitable for functions such as automotive telecommunication and autonomous driving. It safeguards the security of the vehicle's communication network, prevents hacker intrusions, and ensures driving safety.