Secure Authenticator cryptographically protects with 1-wire interface
Analog Devices, Inc (ADI) has introduced a cost-effective authenticator chip to detect and help protect products from counterfeiting or misuse.
The DS28E30 1-Wire ECDSA Secure 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 in 3Kb secure EEPROM for user memory, keys and certificates.
With a single-contact 1-Wire interface, the device easily integrates into existing or new designs with minimal complexity.
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The DS28E30 provides secure features to enable use management of limited life tools, sensors, and other peripherals. These include a monotonic, non-resettable, decrement-only counter and 1Kbit of general-purpose EEPROM that can optionally be ECDSA protected to store application data including end-product life-cycle information.
Each part is factory programmed with ADI’s public key certificate for guaranteed authenticity and is packaged in a 1.2mm x 1.4mm 4-ball WLP with 0.5mm pitch. It is priced at $0.66 in 1,000 volumes.