Scott Jones, executive director of the Maxim Integrated Embedded Security Group, said the company does not have to spend too much effort, resources or time on hardware-based upfront system protection, and designers can easily get their designs protected at the highest level with the DS28E38 ChipDNA technology .
The IC uses Maxim's ChipDNA PUF to effectively protect against intrusive attacks because the ChipDNA-based root key does not exist in memory or any other static space at all. Maxim's PUF circuit relies on a foundation MOSFET semiconductor components to protect the simulation of the key, and the analog components of the nature of randomly generated. If necessary, each component circuit will generate a unique key, and disappeared immediately after use .If the IC was invaded Physical attacks will cause the electrical characteristics of the circuit to change, further deterring sabotage.
In addition to the benefits of protection, ChipDNA technology simplifies and eliminates the need for complex secure IC key management because the keys can be used directly for encryption operations. ChipDNA circuits have proven their high reliability in process, voltage, temperature and aging addition, To improve cryptographic quality, PUF output evaluation successfully passed the system's NIST randomness test. With the DS28E38, engineers can incorporate an anti-attack capability into their designs right from the start. With its single-contact 1-Wire interface and Incorporating simple, fixed-function commands that include cryptographic operations makes it easy to integrate the IC into the customer's design.