Patent · US Active

Grouping of physically unclonable functions

US9048834B2 · kind B2 · utility

6Cited by

7References

20Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Jiangtao Li · Beaverton, US
Patrick Koeberl · Hähnlein, DE
Sanu K. Mathew · Hillsboro, US
Wei Wu · Portland, US

Key dates

Filing date	Jan 16, 2013
Grant date	Jun 2, 2015
Priority date	—
Expiry date	Feb 25, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/3278
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A physically unclonable function (PUF) includes a plurality of PUF elements to generate an N-bit PUF signature. For each bit in the N-bit PUF signature, a PUF group of K number of individual PUF elements indicating a single-bit PUF value is used to generate a group bit. The group bits are more repeatable than the individual PUF elements. The value K may be selected such that (K+1)/2 is an odd number.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.