Novel Microprocessor-based Physical Unclonable Function Demonstrated
October 11, 2012
The Secure Embedded Systems (SES) lab in the Center for Embedded Systems for Critical Applications (CESCA) at Virginia Tech, has demonstrated a novel Physical Unclonable Function (PUF), implemented in a microprocessor. An on-chip PUF is an integrated structure that creates a chip-unique response. It can be used to uniquely distinguish one single chip among a large population of identical chips. PUFs are used for cryptographic key generation, and for authentication. Most of the existing PUF designs, however, consume a high amount of silicon resources and/or energy. This makes them less useful for embedded implementations.
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