DS28C50 DeepCover® I2C Secure Authenticator

Analog Devices Inc. DS28C50 DeepCover^® I²C Secure Authenticator combines FIPS202-compliant secure hash algorithm (SHA-3) challenge and response authentication with Maxim's patented ChipDNA™ technology. This technology provides a physically unclonable function (PUF) and is a cost-effective solution with the ultimate protection against security attacks. The ChipDNA implementation utilizes the random variation of semiconductor device characteristics that naturally occur during wafer fabrication. The ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operations modifies the underlying circuit characteristics, thus preventing discovery of the unique value used by the chip's cryptographic functions.