Mentor Graphics Corporation

Michael Chen

Joseph P Skudlarek

Mario Larouche

Wei-Che Wang

Eugene Kishinevsky

This application discloses a supply chain security technique that enrolls an integrated circuit with a security server and subsequently utilizes the enrollment to authenticate the integrated circuit. The integrated circuit can include security circuitry to enroll the integrated circuit with the security server by generating an enrollment message&#x2014;including a fingerprint code having an encoded version of a private value generated by the security circuitry&#x2014;for transmission to the security server. The security circuitry can authenticate the integrated circuit by replying to a request to verify authentication of the integrated circuit from the security server. The response can confirm to the security server that the integrated circuit includes the private value, which can authenticate the integrated circuit.

Secure protocol for chip authentication

This application discloses a physical unclonable function device including physical unclonable function units, each capable of generating an output. The physical unclonable function device can utilize transforms to derive bits from the outputs and utilize the derived bits to generate an identifier for the physical unclonable function device. An inspection configuration tool can sample multiple outputs from each of the physical unclonable function units, identify a transforms to perform on a future output for each of the physical unclonable function units based on a distribution of values corresponding to the sampled outputs. The inspection configuration tool can configure the physical unclonable function device to perform the transforms on the future outputs of the physical unclonable function units. Embodiments will be described below in greater detail.

Tolerant of absolute offsets physical unclonable function device

This application discloses an electronic system including active circuitry configured to be selectively enabled for authorized number of times. The electronic system also includes security circuitry to detect an enablement event associated with the electronic system. The enablement event can correspond to reception of a reset signal associated with the electronic system, a lapse of a predetermined time period, or the like. In response to the detection of the enablement event, the security circuitry can determine a number of times the security circuitry has previously enabled the active circuitry. The security circuitry can generate the enablement signals capable of enabling the active circuitry when the determined number of times the security circuitry has previously enabled the active circuitry is fewer than the authorized number of times.

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Happy Valley, OR, United States of America

Michael Chen