Authenticator protects against counterfeiting with ECDSA and 1-Wire interface

To detect and protect products from counterfeiting or misuse, Analog Devices has introduced the DS28E30, a 1-Wire ECDSA secure authenticator. 

The authenticator combines a fixed-function cryptographic toolbox based on the industry standard FIPS 186 elliptic curve digital signature algorithm (ECDSA) with secure storage of keys and application data and the single-contact 1-Wire interface for minimal interconnect requirement. Authentication is based on challenge/response sequences. Analog Devices said that the authenticator is easy to integrate into new or existing designs.

The DS28E30 provides secure features to enable the use of limited life tools, sensors, and other peripherals. Features include a monotonic, non-resettable, decrement-only counter and 1kbit of general-purpose EEPROM. It can optionally be ECDSA protected to store application data including end-product life cycle information.

The DE28E30 has a wide operating range of 1.62 to 5.25V and a temperature range of  -40 to +85 degrees C.

The authenticator is supplied in a four-ball WLP with a 0.5mm pitch and measuring 1.2mm x 1.4mm. It is in full production and available now.

Analog Devices offers a suite of analogue and mixed signal, power management, radio frequency (RF), and digital and sensor technologies with more than 75,000 products in the industrial, communications, automotive, and consumer markets. ADI is headquartered in Wilmington, Massachusetts, USA.

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