SELF-AUTHENTICATING CHIP

摘要

Embodiments of the present invention provide an authenticating service of a chip having an intrinsic identifier (ID). In a typical embodiment, an authenticating device is provided that includes an identification (ID) engine, a self-test engine, and an intrinsic component. The intrinsic component is associated with a chip and includes an intrinsic feature. The self-test engine retrieves the intrinsic feature and communicates it to the identification engine. The identification engine receives the intrinsic feature, generates a first authentication value using the intrinsic feature, and stores the authentication value in memory. The self-test engine generates a second authentication value using an authentication challenge. The identification engine includes a compare circuitry that compares the first authentication value and the second authentication value and generates an authentication output value based on the results of the compare of the two values.

主权项

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 associated with a chip that is unique to the chip, results from manufacturing variability, and has an intrinsic feature; 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 authentication value in memory; the self-test engine further configured to generate a second authentication value using an authentication challenge; 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.