Request DS28E50 Security User Guide EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. DS28E50 DeepCover Secure SHA-3 Authenticator with ChipDNA PUF Protection General Description Benefits and Features The DS28E50 secure authenticator combines FIPS202- Robust Countermeasures Protect Against Security compliant secure hash algorithm (SHA-3) challenge Attacks and response authentication with Maxims patented Patented Physically Unclonable Function Secures ChipDNA technology, a physically unclonable function Device Data (PUF) to provide a cost-effective solution with the ultimate Actively Monitored Die Shield Detects and Reacts to Intrusion Attempts protection against security attacks. The ChipDNA imple- mentation utilizes the random variation of semiconductor All Stored Data Cryptographically Protected from Discovery device characteristics that naturally occur during wafer fabrication. The ChipDNA circuit generates a unique Efficient Secure Hash Algorithm Authenticates output value that is repeatable over time, temperature, Peripherals and operating voltage. Attempts to probe or observe FIPS 202-Compliant SHA-3 Algorithm for ChipDNA operation modifies the underlying circuit charac- Challenge/Response Authentication teristics thus preventing discovery of the unique value used FIPS 198-Compliant Keyed-Hash Message by the chip cryptographic functions. The DS28E50 utilizes Authentication Code (HMAC) the ChipDNA output as key content to cryptographically TRNG with NIST SP 800-90B Compliant Entropy secure all device-stored data. With ChipDNA capability, the Source device provides a core set of cryptographic tools derived Supplemental Features Enable Easy Integration into from integrated blocks including a SHA-3 engine, a FIPS/ End Applications NIST compliant true random number generator (TRNG), 17-Bit One-Time Settable, Nonvolatile Decrement- 2Kb of secured EEPROM, a decrement-only counter and Only Counter with Authenticated Read a unique 64-bit ROM identification number (ROM ID). The One GPIO Pin with Optional Authentication Control unique ROM ID is used as a fundamental input parameter 2Kb of EEPROM for User Data, Key, and Control for cryptographic operations and serves as an electronic Registers serial number within the application. The DS28E50 com- Unique and Unalterable Factory Programmed municates over the single-contact 1-Wire bus at both 64-Bit Identification Number (ROM ID) standard and overdrive speeds. The communication fol- Single-Contact, 1-Wire Interface Communication lows the 1-Wire protocol with the ROM ID acting as node with Host at 11.7kbps and 62.5kbps address in the case of a multidevice 1-Wire network. Operating Range: 3.3V 10%, -40C to +85C 6-Pin TDFN-EP Package (3mm x 3mm) Applications Authentication of Medical Sensors and Tools Secure Management of Limited Use Consumables IoT Node Authentication Peripheral Authentication Reference Design License Management Ordering Information appears at end of data sheet. Printer Cartridge Identification and Authentication ChipDNA is a trademark and 1-Wire is a registered trademark of Maxim Integrated Products, Inc. 19-100367 Rev 1 9/18DS28E50 DeepCover Secure SHA-3 Authenticator with ChipDNA PUF Protection Typical Application Circuit VCC R P V CC V CC IO 2 I C SDA DS2477 PORT SCL C IO GPIO GND IO GND PIO IO DS28E50 C EXT C X GND Maxim Integrated 2 www.maximintegrated.com