The QDID PUF provides a unique identity based directly on quantum effects observed in standard CMOS processes. These identities are inherently secure due to the randomness that originates from variations in device oxide thickness and defect distribution. By leveraging such inherent unpredictability, QDID PUFs form a robust basis for hardware root-of-trust. This IP simplifies secure provisioning by avoiding traditional factory-based key injections, thereby reducing reliance on external secure manufacturing processes.
QDID PUFs also ensure that identities are not stored in memory, instead being generated dynamically. This characteristic defends against side-channel attacks exploiting memory vulnerabilities. Additionally, the high entropy of the quantum effects they harness offers robust resistance to machine learning-based entropy source attacks, generating customizable security seeds up to 256 bits.
Boosting its security, the QDID PUF integrates strategic countermeasures against side-channel attacks and has been certified to comply with stringent standards like PSA Level 2 and CC EAL4+. It supports wide-ranging environmental conditions and boasts extensive process node compatibility with major fabrication technologies. Typically used for key generation and device authentication, it represents the vanguard of cryptographic consistency for post-quantum applications.
