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Cost Effective Secure Authenticator with Single pin 1-Wire Interface for Minimal Interconnect Requirement

DS28E30 1-Wire ECDSA Secure Authenticator
DS28E30 1-Wire ECDSA Secure Authenticator

Analog Devices, Inc. has introduced the DS28E30 1-Wire ECDSA Secure Authenticator which is a cost-effective solution to detect and help protect products from counterfeiting or misuse. Combining a fixed-function cryptographic toolbox based on the industry-standard FIPS 186 elliptic curve digital signature algorithm (ECDSA), secure storage of keys and application data, and the single-contact 1-Wire interface, the device easily integrates into existing or new designs with minimal complexity.


This device provides secure features to enable the 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.



  • FIPS 186 ECDSA-P256 based challenge/response authentication
  • Single pin 1-Wire interface for minimal interconnect requirement

  • Each part factory programmed with ADI public key certificate for guaranteed authenticity

  • 3Kb secure EEPROM for user memory, keys, and certificate

  • Wide operating range: 1.62V-5.25V, -40C to +85C

  • Small 1.2mm x 1.4mm 4-ball WLP with 0.5mm pitch



  • Battery Authentication and Charge Cycle Tracking

  • Medical Tools/Accessories Authentication and Calibration

  • Accessory and Peripheral Secure Authentication


Pricing and Availability

The DS28E30 1-Wire ECDSA Secure Authenticator is now in production, housed in a 4 Ball WLP package, and pricing starts from $0.66 for orders of 1000 pieces

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