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DeepCover Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM

Protect Your Development Investment with Crypto-Strong Authentication and Advanced Physical Security

Product Details

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 (DS28E15) combines secure challenge and response authentication functionality based on the FIPS180-3 specified Secure Hash Algorithm (SHA-256) with 512 bits of user-programmable EEPROM. Additional secure memory holds a secret/key for SHA-256 operations. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. The DS28E15 generates the SHA-256 message authentication code (MAC) computed from data in the user memory, the SHA-256 secret, a host controller random challenge, and the 64-bit ROM ID. A secure and low-cost factory-programming service is available to preprogram device data including the SHA-256 secret. The DS28E15 communicates over Maxim's single-contact 1-Wire® bus.

Our Secure Drug Delivery video shows how Maxim security products can be used to authenticate remote drug delivery.

Key Features

  • 512-Bit EEPROM with SHA-256 Authentication for Reads and Writes
    • 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 Authentication, Write and Read Protect, and OTP/EPROM Emulation
    • Unique Factory-Programmed, 64-Bit Identification Number
  • Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
    • Reduces Control, Address, Data, Power, and Programming Signals to a Single Data Pin
    • ±8kV HBM ESD Protection (typ)
    • 2-Pin SFN, 6-Pin TDFN-EP, and 6-Pin TSOC Packages
    • Operating Range: 3.3V ±10%, -40°C to +85°C

Applications/Uses

  • Authentication of Consumables
  • Secure Feature Control
Parametric specs for Secure Authenticators
Crypto Engine Symmetric
Applications IP Protection
Medical Consumable ID
PCB ID and Authentication
Print Cartridge Authentication
Bus Type 1-Wire
Memory Type EEPROM
Memory Size 512 bits
Deep Cover Yes
Oper. Temp. (°C) -40 to +85
Package/Pins SFN/2
TDFN/6
TSOC/6
Budgetary
Price (See Notes)
$0.70 @1k
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Simplified Block Diagram

DS28E15: Typical Application Circuit DS28E15: Typical Application Circuit Zoom icon

Technical Docs

Design & Development

Click any title below to view the detail page where available.

Additional Resources
Programming Options
Programming Secure Authenticators

Description

The DS28E15 evaluation system (EV system) provides the hardware and software necessary to evaluate and program the DS28E15 DeepCover® Secure Authenticator. EV system operation requires a host PC for user-friendly evaluation.
This evaluation system includes a DS9400 USB-to-I2C PC adapter, a DS2465 EV board, a DS9120Q+ evaluation socket board for a TDFN DS28E15, and five DS28E15 sample devices in a TDFN package. The EV software runs on Windows® 8, Windows 7, Windows Vista®, and Windows XP® operating systems. Detailed instructions for downloading and installing software, as well as general EV system operation are included in the EV system data sheet; software and documentation are available at the link above.
Note: The DS2465 EV board and DS9400# subcomponents are not available for direct sale outside of evaluation systems. A data sheet specific to DS9400# is not available.

View Details

Features

  • Complete EV System:
    • Five DS28E15 ICs in TDFN-EP Package
    • One USB-to-I2C Adapter (DS9400#) Provides PC Connection
    • DS2465EVKIT# EV Board Provides 1-Wire Interface and SHA-256 Coprocessor
    • One EV Board (DS9120Q+) with TDFN-EP Socket Provides Easy Chip Evaluation
  • USB-to-I2C Module Contains Prolific PL-2303HXD USB-to-UART Chip
    • Enumerates as a Virtual PC COM Port
    • Windows Certified Logo USB Device Driver Available
    • Standard USB Cable Interface
  • EV Board Contains Convenient On-Board Test Points
  • Evaluation Software Will Be Provided Along with Full Evaluation Kit Data Sheet

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Support & Training

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Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Key Features

  • 512-Bit EEPROM with SHA-256 Authentication for Reads and Writes
    • 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 Authentication, Write and Read Protect, and OTP/EPROM Emulation
    • Unique Factory-Programmed, 64-Bit Identification Number
  • Minimalist 1-Wire Interface Lowers Cost and Interface Complexity
    • Reduces Control, Address, Data, Power, and Programming Signals to a Single Data Pin
    • ±8kV HBM ESD Protection (typ)
    • 2-Pin SFN, 6-Pin TDFN-EP, and 6-Pin TSOC Packages
    • Operating Range: 3.3V ±10%, -40°C to +85°C

Applications/Uses

  • Authentication of Consumables
  • Secure Feature Control

Description

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 (DS28E15) combines secure challenge and response authentication functionality based on the FIPS180-3 specified Secure Hash Algorithm (SHA-256) with 512 bits of user-programmable EEPROM. Additional secure memory holds a secret/key for SHA-256 operations. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. The DS28E15 generates the SHA-256 message authentication code (MAC) computed from data in the user memory, the SHA-256 secret, a host controller random challenge, and the 64-bit ROM ID. A secure and low-cost factory-programming service is available to preprogram device data including the SHA-256 secret. The DS28E15 communicates over Maxim's single-contact 1-Wire® bus.

Our Secure Drug Delivery video shows how Maxim security products can be used to authenticate remote drug delivery.

Simplified Block Diagram

DS28E15: Typical Application Circuit DS28E15: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal