DS28E39

DeepCover Secure ECDSA Bidirectional Authenticator with ChipDNA PUF Protection

Protect Your Design Using Crypto-Strong Authentication Secured with a Physically Unclonable Function


Please check latest availability status for a specific part variant.

Description

The DS28E39 is an ECDSA public-key-based bidirectional secure authenticator that incorporates Maxim’s patented ChipDNA™ feature, a physically unclonable function (PUF) to provide a cost-effective solution with the ultimate protection against security attacks. Using the random variation of semiconductor device characteristics that naturally occur during wafer fabrication, the ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics, preventing discovery of the unique value used by the chip cryptographic functions. The DS28E39 utilizes the ChipDNA output as key content to cryptographically secure all device stored data and optionally, under user control, as the private key for the ECDSA signing operation. With ChipDNA capability, the device provides a core set of cryptographic tools derived from integrated blocks including an asymmetric (ECC-P256) hardware engine, a FIPS/NIST-compliant true random number generator (TRNG), 2Kb of secured EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The ECC public/private key capabilities operate from the NIST-defined P-256 curve to provide a FIPS 186-compliant ECDSA signature generation function. The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The DS28E39 communicates over the single-contact 1-Wire® bus at both standard and overdrive speeds. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.
DS28E39: Typical Application Circuit DS28E39: Typical Application Circuit Enlarge+

Key Features

  • Robust Countermeasures Protect Against Security Attacks
    • Patented Physically Unclonable Function Secures Device Data
    • Actively Monitored Die Shield Detects and Reacts to Intrusion Attempts
    • All Stored Data Cryptographically Protected from Discovery
  • ECDSA Authenticated R/W of Stored Data and Counter
  • Efficient Public-Key Authentication Solution to Authenticate Peripherals
    • FIPS 186-Compliant ECDSA P256 Signature for Challenge/Response Authentication
    • ChipDNA Generated Public/Private Key Pair.
    • TRNG with NIST SP 800-90B Compliant Entropy Source
  • Supplemental Features Enable Easy Integration into End Applications
    • 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
    • 2Kbits of EEPROM for User Data, Key, Control Registers, and Certificate
    • Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
    • Single-Contact, 1-Wire Interface Communication with Host at 11.7kbps and 62.5kbps
    • Operating Range: 3.3V ±10%, -40°C to +85°C
    • 6-Pin TDFN-EP Package (3mm x 3mm)

Applications/Uses

  • Authentication of Medical Sensors and Tools
  • IoT Node Authentication
  • Peripheral Authentication
  • Printer Cartridge Identification and Authentication
  • Reference Design License Management
  • Secure Management of Limited Use Consumables
Part NumberCrypto EngineApplicationsMemory TypeMemory SizeBus TypeVSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
DS28E39 NEW!Asymmetric
IP Protection
Medical Consumable ID
Medical Sensor Authentication and Calibration
PCB ID and Authentication
Print Cartridge Authentication
Printer Cartridge Configuration and Monitoring
Rack Card Security
EEPROM2K x 11-Wire2.97 to 3.63-40 to +85
TDFN/6
$1.08 @1k
See All Secure Authenticators (28)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


DS28E39EVKIT: Evaluation System for the DS28E39 and DS2476

CAD Symbols and Footprints

  • DS28E39Q+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    DS28C40
    Deep Cover Automotive I²C Authenticator

    • ECC-P256 Compute Engine
    • SHA-256 Compute Engine
    • SHA-256 One-Time Pad Encrypted R/W of Configurable Memory Using an ECDH Established Key

    DS28E16
    1-Wire SHA-3 Secure Authenticator

    • Robust Countermeasures Protect Against Security Attacks
    • Efficient Secure Hash Algorithm Authenticates Peripherals
    • Supplemental Features Enable Easy Integration into End Applications

    Type ID PDF Title
    User Guide 6796 DS28E39 Security User Guide
    Tutorial 1796 Guide to 1-Wire Communication