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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

Key Features

Parametric specs for Secure Authenticators
Crypto Engine Symmetric
End Equipment 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)
0.74
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Simplified Block Diagram

Support & Training

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Parameters

Parametric specs for Secure Authenticators
Crypto Engine Symmetric
End Equipment 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)
0.74

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

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 .