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The DS28E30 provides a complete authentication solution with ECDSA that is highly secure and easy to deploy.

Applications:

Accessories and peripherals safety certification

Battery certification and charge cycle tracking

Certification and calibration of medical tools/accessories

Features:

Reliable safeguards help protect against security attacks

Encryption protects all stored data and prevents leaks

ECC P-256 secure computing engine

Pre-programmed and write protected ECC P-256 key pair

ECDSA compliant with FIPS 186-4 provides robust challenge/response certification

Reads and writes to configurable memory are authenticated by ECDSA

TRNG is used to ensure ECDSA Nonce security

Complementary features enable easy integration into end applications

17-bit, one-time settable, non-volatile, decrement only counter with authenticated read capability

The 3Kb Secure EEPROM is used to store user data, keys, certificates, and security counters

Unique and unchangeable 64-bit factory number (ROM ID)

ECDSA authenticity verification using pre-programmed Maxim certificates

The advanced 1-Wire protocol minimizes single-contact interfaces

High communication speed at all times

Operating range: -40℃ to +85℃, 1.62V to 5V

4-pin WLP and 6-pin TSOC packages

Input load current: 3.5μA (typical)

1-Wire pin High ESD rejection: ±8kV mannequin (HBM), typical value

Product: DS28E30P

Package: TSOC-6

Type: Security and authentication IC

DS28E30P circuit diagram:

The DS28E30 provides a complete certification solution based on the FIPS-186 ECDSA standard, which is not only highly secure but also easy to deploy. The security authenticator adopts ECDSA challenge and response authentication, and utilizes secure EEPROM to store keys and user data.

The device provides a core set of encryption tools derived from a variety of integrated blocks, including an asymmetric hardware engine, a true random number generator (TRNG), a 3Kb secure EEPROM, a decrement-only counter, and a 64-bit unique ROM ID. The ECC public/private key function operates according to the NIST-defined P-256 curve and provides FIPS 186-compliant ECDSA signature generation to support the bidirectional asymmetric key authentication model. The unique ROM ID is used as a basic input parameter for encryption operations and is used in applications as an electronic serial number. In addition, the authenticity of the chip can be verified with a public key certificate provided by Maxim. The device communicates at overdrive speeds via a single-contact 1-Wire® bus. In a multi-device 1-Wire network, the 1-Wire protocol is used for communication and the ROM ID is used as the node address.