描述 Description

The DS28E54 secure authenticator combines FIPS 202-compliant secure hash algorithm (SHA-3) challenge andresponse authentication with secured electricallyerasable programmable read-only memory (EEPROM).

The device provides a core set of cryptographic toolsderived from integrated blocks, including an SHA-3engine, 2.25Kbit of secured user EEPROM, adecrement-only counter, and a unique 64-bit ROMidentification number (ROM ID), all while remainingreverse compatible to the DS2431/DS28E07.

The unique ROM ID is used as a fundamental inputparameter for cryptographic operations and serves asan electronic serial number within the application.

The device communicates over the single-contact 1-Wire? bus.The communication follows the 1-Wire protocol, with theROM ID acting as the node address in the case of amultidevice 1-Wire network.

特性 Features

DS2431/DS28E07 Reverse Compatibility
2.25Kbits of EEPROM Memory Partitioned into 11 User Pages of 256 Bits (First Five Pages Compatible)
64-Bit Scratchpad Buffer for Compatible Secure Writing with Offset and Individual Addressing
±8kV HBM ESD Protection (typ) for IO Pin
Efficient Secure Hash Algorithm to Authenticate Peripherals
FIPS 202-Compliant SHA-3 Algorithm for Challenge/Response Authentication and Device Disable
FIPS 198-Compliant Keyed-Hash Message Authentication Code (HMAC)
Optional HMAC SHA3-256 Authenticated Write Protection of EEPROM
Supplemental Features for Easy Integration into End Applications
17-Bit, One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read

Secure Storage for Secret
2.25KBits of Secure EEPROM for User Data and Secret
Unique and Unalterable, Factory-Programmed, 64-Bit Identification Number (ROM ID)
Advanced 1-Wire Protocol Minimizes Interface to Single Contact
Standard and Overdrive Communication Speed
Internal Parasite Power Capacitor
Operating Range: 2.8V to 5.25V, -40°C to +85°C
SFN, SFN 6x6, TDFN-EP, TSOC, TO92 Packages
4.0μA (typ) Input Load Current

應(yīng)用 Application

Medical Tools/Accessories Authentication and Calibration
Accessory and Peripheral Secure Authentication
Battery Authentication and Charge Cycle Tracking
Analog Sensor Calibration