Patent ID: 9038133
Filing Date: 2015-05-19
Classification: G01C,G06F,G09C,G11B,H04L,H04N

Abstract:
1. A system for providing an authenticating service of a chip, the system comprising: an authenticating device comprising an identification engine, a self-test engine, and an intrinsic component that is unique to the chip and results from manufacturing variability, wherein the intrinsic component is associated with a chip and comprises an intrinsic feature, wherein the intrinsic feature comprises a matrix of values representing intrinsic properties of the chip, wherein a subset of the matrix of values is an intrinsic feature subset; the self-test engine configured to retrieve the intrinsic feature and communicate the intrinsic feature to the identification engine; the identification engine further configured to receive the intrinsic feature, generate a first authentication value using the intrinsic feature, and store the first authentication value in memory; the self-test engine further configured to generate a second authentication value using an authentication challenge, wherein the authentication challenge further comprises a location for each matrix value within the intrinsic feature subset; the identification engine further comprising a compare circuitry configured to compare the first authentication value and the second authentication value; and the compare circuitry further configured to generate an authentication output value based on the results of the compare of the first authentication value and the second authentication value.