مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

The DS28E30 provides a highly secure and easily deployed turnkey authentication solution based on the FIPS - 186 ECDSA standard. The secure authenticator combines ECDSA challenge and response authentication with secured EEPROM for the storage of the keys and user data. The device provides a core set of cryptographic tools derived from integrated blocks including an asymmetric hardware engine, a true random number generator (TRNG), 3Kb of secure 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 to support a bidirectional asymmetric key authentication model. The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. In addition, authenticity of the chip can be verified with a Maxim - provided public key certificate. The device communicates over the single - contact 1 - Wire bus at overdrive speed. The communication follows the 1 - Wire protocol with the ROM ID acting as a node address in the case of a multidevice 1 - Wire network.

Features

• Robust Countermeasures Protect Against Security Attacks
• All Stored Data Cryptographically Protected from Discovery
• ECC P - 256 Secure Compute Engine
• Preprogrammed and Write - Protected ECC P - 256 Key Pair
• FIPS 186 - 4 Compliant ECDSA for Strong Challenge/Response Authentication
• ECDSA Authenticated R/W of Configurable Memory
• TRNG Used for Secure ECDSA Nonces
• 17 - Bit, One - Time Settable, Nonvolatile Decrement - Only Counter with Authenticated Read
• 3Kb of Secure EEPROM for User Data, Keys, Certificate, and Secure Counter
• Unique and Unalterable Factory - Programmed, 64 - Bit Identification Number (ROM ID)
• Authenticity Verification with ECDSA Using Preprogrammed Maxim Certificate
• Advanced 1 - Wire Protocol Minimizes Interface to Single Contact
• Full - Time Overdrive Communication Speed
• Operating Range: - 40°C to + 85°C, 1.62V to 5V
• 4 - Bump WLP and 6 - Pin TSOC Packages
• 3.5μA (typ) Input Load Current
• High ESD Immunity of 1 - Wire Pin: ± 8KV Human Body Model (HBM), typ

Applications

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