Atmel has made a breakthrough in the provision of security functionality for Internet of Things (IoT) devices and other connected systems with the ATECC508A, a member of its CryptoAuthentication™ product family.
The Atmel® ATECC508A is the first device to implement the Elliptic Curve Diffie-Hellman (ECDH) security protocol – an ultra-secure method for providing key agreement when encrypting and decrypting data shared between two devices – in a small, low-power device suitable for use in IoT equipment. It also implements the Elliptic Curve Digital Signature Algorithm (ECDSA) to provide for sign-verify authentication.
The CryptoAuthentication portfolio now includes two series of devices offering advanced Elliptic Curve Cryptography (ECC) capabilities. Because the new ATECC508A has ECDH and ECDSA built-in, it enables design engineers to easily provide confidentiality, data integrity and authentication in systems that use a microcontroller or microprocessor running encryption/decryption algorithms such as Advanced Encryption Standard (AES) in software.
Like all Atmel CryptoAuthentication products, the new ATECC508A employs hardware-based cryptographic key storage and cryptographic counter-measures, which are more secure than software-based key storage.
It is compatible with any MCU or MPU on the market today. Drawing a typical current of just 3mA in Active mode, it consumes very little power, and requires only a single general-purpose
- Support for X.509 certificate formats
- 256-bit SHA/HMAC hardware engine
- Multi-level random number generation
- Guaranteed unique 72-bit identity
- 150nA maximum stand-by current
- 10.5kbits EEPROM for secret and private keys
- Home automation
- Industrial networking
- Authentication of accessories and consumables
- Medical equipment
- Mobile devices