PUFs 'n Stuff: Getting the most of the digital world through physical identities

Physically un-clonable functions (PUFs) can be used to provide good sources of device-specific keying material without needing specialized hardware. These functions expose the manufacturing variance that naturally occurs during the fabrication of modern ICs. A few PUFs present on common systems will be discussed and demonstrated as part of the open-source PUFLib before the talk will show how these functions can be used to provide the basis for seamless DLP, watermarking and device authentication to captive portals. This talk aims to show how it’s possible to draw the physical world into the digital domain for enhanced security and assurances of trust by tying identity to physical traits that cannot easily be stolen over passwords/keys that only reside in (cloneable) software.