DS1964S

RECOMMENDED FOR NEW DESIGNS

DeepCover Secure Authenticator iButton with SHA-256

World-Class Security in Stainless Steel Case for Durable Secure Authentication

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Symmetric-Key-Based Bidirectional Secure Authentication Model Based on SHA-256
  • Strong Authentication with a High-Bit-Count User-Programmable Secret and Input Challenge
  • 512 Bits of User EEPROM Partitioned Into Two Pages of 256 Bits
  • User-Programmable and Irreversible EEPROM Protection Modes Including Write and Read Protect and OTP/EPROM Emulation
  • Unique Factory-Programmed, 64-Bit Identification Number
  • Single-Contact 1-Wire Interfac
  • Operating Range: -40℃ to +85℃
  • ±8kV HBM ESD Protection (typ)
  • Durable Stainless-Steel Enclosure Withstands Harsh Environments and Conditions

DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible. The DeepCover Secure Authenticator i Button® (DS1964S) combines crypto-strong bidirectional secure challenge-and-response authentication functionality with an implementation based on the FIPS 180-3-specified Secure Hash Algorithm (SHA-256). A 512-bit user-programmable EEPROM array provides nonvolatile storage of application data. Additional protected memory holds a read-protected secret for SHA-256 operations and settings for memory protection control. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. This unique ROM ID is used as a fundamental input parameter for cryptographic operations and also serves as an electronic serial number within the application. A bidirectional security model enables two-way authentication between a host system and slave-embedded DS1964S. Slave-to-host authentication is used by a host system to securely validate that an attached or embedded DS1964S is authentic. The DS1964S communicates over the single-contact 1-Wire® bus at overdrive speed. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.

Applications

  • Authentication of Consumables
  • Secure Feature Control
DS1964S
DeepCover Secure Authenticator iButton with SHA-256
DS1964S: Block Diagram
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Documentation

Data Sheet 1

Design Note 1

Technical Articles 4

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Software Resources

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Tools & Simulations

DeepCover® Security Lab

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Evaluation Kits

DS1964SEVKIT

Evaluation Kit for the DS1964S

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Features and Benefits

  • Demonstrates the Basic Features of the DS1964S
  • USB-to-I2C Module Contains Prolific PL-2303HXD USB-to-UART Chip
    • Enumerates as a Virtual PC COM Port
    • Standard USB Cable Interface
  • Evaluation Software Available to Exercise Device Functions
  • Microsoft Windows® -Compatible Software

Product Details

The DS1964S DeepCover® Secure Authenticator iButton® evaluation system (EV system) provides the hardware and software necessary to evaluate the DS1964S. The EV system consists of a single evaluation kit (EV kit) that includes two DS1964S devices, a DS1402-RP8 cable, a DS9400# USB-to-I2C PC adapter, and a DS2465EVKIT# evaluation board to be used as a 1-Wire® master and a SHA-256 coprocessor. Note: The DS9400# and the DS2465EVKIT# EV board subcomponents are not available for direct sale outside of EV kits.

Applications

  • Authentication of Consumables
  • Secure Feature Control
DS1964SEVKIT
Evaluation Kit for the DS1964S

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