DS28E38
Description
The DS28E38 is an ECDSA public key-based secure authenticator that incorporates Maxim’s patented Chip DNA™ PUF technology. Chip DNA technology involves a physically unclonable function (PUF) that enables the DS28E38 to deliver cost-effective protection against invasive physical attacks. Using the random variation of semiconductor device characteristics that naturally occur during wafer fabrication, the Chip DNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe Chip DNA operation modifies the underlying circuit characteristics, preventing discovery of the unique value used by the chip cryptographic functions. The DS28E38 utilizes the Chip DNA output as key content to cryptographically secure all device stored data and optionally, under user control, as the private key for the ECDSA signing operation. With Chip DNA capability, the device provides a core set of cryptographic tools derived from...
