Products > Integrated Circuits (ICs) > Programmable Logic ICs > DS28E35
DS28E35 SOJ6
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DS28E35

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DeepCover Secure Authenticator with 1-Wire ECDSA and 1Kb User EEPROM

Manufacturer :
Maxim Integrated
Package/Case :
SOJ6
Product Categories :
Secure Authenticators
Datasheet:
DS28E35 PDF
RoHs Status:
Lead free/RoHS Compliant
In-stock:
430

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DS28E35 Product Details

The DeepCover Secure Authenticator (DS28E35) provides a highly secure solution for a host controller to authenticate peripherals based on the industry standard (FIPS 186) public-key based Elliptic Curve Digital Signature Algorithm (ECDSA). The ECDSA engine computes keys and signatures using a pseudorandom curve over a prime field according to the �Standards for Efficient Cryptography (SEC)�. The private and public key can be computed by the device or installed by the user and optionally locked. Separate memory space is set aside to store and lock a public-key certificate as it is needed to verify authenticity. In addition to ECDSA-related memory, the device has 1024 bits of user memory that is organized as four pages of 256 bits. Page protection modes include write protection, read protection, and one-time-programmable (OTP) memory emulation modes. The DS28E35 also features a one-time settable, nonvolatile 17-bit decrement-on-command counter, which can be used to keep track of the lifetime of the object to which the DS28E35 is attached. 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. The DS28E35 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 multi-device 1-Wire network.

Feature

  • Symmetric Key-Based Bidirectional Secure Authentication and Encryption Model Based on SHA-256
  • Dedicated Hardware-Accelerated SHA Engine for Generating SHA-256 MACs
  • Strong Authentication with a 256-Bit, User-Programmable Secret, and Input Challenge
  • 3072 Bits of User EEPROM Partitioned Into 12 Pages of 256 Bits
  • User-Programmable and Irreversible EEPROM Protection Modes Including Authentication, Write and Read Protect, Encryptions, and OTP/EPROM Emulation
  • Supports 100kHz and 400kHz I2C Communication Speeds
  • Supports Power-Saving Sleep Mode at 0.5μA (typ)
  • Operating Range: 3.3V ±10%, -40°C to +85°C
  • 8-Pin TDFN Package

Applications

  • Authentication of Network-Attached Appliances
  • Key Generation and Secure Exchange for Cryptographic Systems
  • Secure Feature Setting for Configurable Systems
  • System Intellectual Property Protection

DS28E35 Block Diagram
(Picture: Diagram)

Technical Parameters

Crypto Engine Asymmetric Deep Cover Yes
Applications IP Protection ,Medical Consumable ID ,PCB ID and Authentication ,Print Cartridge Authentication ,Rack Card Security Oper. Temp. (\u00b0C) -40 to +85
Memory Type EEPROM Package/Pins SFN/2 ,TDFN/8 ,TO92/3 ,TSOC/6
Memory Size 1K x 1 Smallest Available Pckg. (max w/pins) (mm2) 17.8
Bus Type 1-Wire RoHS Available Yes
Features Certificate ,Decrement Counter ,ECDSA Authentication ,Memory Protection Options ,Serial Number Budgetary Price (See Notes) $1.04 @1k
Vsupply (V) 2.97 to 3.63

DS28E35 Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **avid Fri***
    2018-10-02

    alles ok. schnelle lieferung!!

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Estimated Delivery Time: Nov 02 - Nov 07 days (choose Expedited at checkout).

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Shipping Type Ship Fee Lead Time
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$20.00-$40.00 (0.50 KG)

2-5 days
Fedex

$20.00-$40.00 (0.50 KG)

3-7 days
UPS

$20.00-$45.00 (0.50 KG)

2-5 days
TNT

$25.00-$65.00 (0.50 KG)

2-5 days
EMS

$25.00-$45.00 (0.50 KG)

5-14 days
REGISTERED AIR MAIL

$2.00-$3.00 (0.10 KG)

7-30 days

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We provide high quality products, thoughtful service and after sale guarantee

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    Minimum order quantity starts from 1pcs.

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    90 days quality guarantee for all products.

Packing

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

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We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Guarantees

1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.

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MAXIM

Maxim
Maxim Integrated Products is a global range of linearity, mixed-signal integrated circuits (IC) design, R & D and manufacturing leader, has designed, developed, and manufactured analog, mixed-signal,...
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