General Description

The MAX66250 secure authenticator combines FIPS 202-compliant Secure Hash Algorithm (SHA-3) challengeand response authentication with secured EEPROM.

The device provides a core set of cryptographic tools derived from integrated blocks including a SHA-3 engine, 256 bits of secured user EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). 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 device communicates over an RF interface compliant with ISO/IEC 15693.

Benefits and Features

●Robust Countermeasures Protect against SecurityAttacks

•All Stored Data Cryptographically Protected fromDiscovery

●Efficient Secure Hash Algorithm to AuthenticatePeripherals

•FIPS 202-Compliant SHA-3 Algorithm forChallenge/Response Authentication

•FIPS 198-Compliant Keyed-Hash MessageAuthentication Code (HMAC)

●Supplemental Features Enable Easy Integration intoEnd Applications

•17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read

•Secure Storage for Secrets

•256 Bits of Secure EEPROM for User Data

•ISO/IEC 15693: up to 52.97kbps

•Unique and Unalterable Factory-Programmed64-Bit Identification Number (ROM ID) withCorresponding UID per ISO/IEC 15693

Applications

●Medical Tools/Accessories Authentication andCalibration

●Printer Cartridge Configuration and Monitoring

●System Intellectual Property Protection

●NFC-Enabled Embedded Systems

●Asset Tracking

●Access Control

●Driver Identification

●E-Cash