Texas Instruments Corporation

Bhargavi Nisarga

Ruchi Shankar

Peter Wongeun Chung

A non-transitory machine-readable medium having machine-readable instructions including a firmware generator, the machine-readable instructions for the firmware generator being executable by a processor core to perform operations including signing a firmware image for a hardware security module (HSM) with a private key of a public private key pair to provide a first signature and augmenting the firmware image with a header that includes the first signature to provide an augmented firmware image. The operations further include encrypting the augmented firmware image with a symmetric key to provide an encrypted augmented firmware image. Furthermore, the operations include signing the encrypted augmented firmware image with the private key to provide a second signature and augmenting the encrypted augmented firmware image with the second signature to provide a firmware package for the HSM.

Hardware security module firmware update

Methods, apparatus, systems, and articles of manufacture to enable status change detection in a low power mode of a microcontroller unit are disclosed herein. An example integrated circuit (IC) includes a controller to determine that the IC is to enter a low power mode. The example IC includes a universal serial bus (USB) physical layer integrated circuit including a transceiver and a detector circuit. The transceiver is disabled while in the low power mode. The detector circuit is enabled while in the low power mode. The detector circuit is to determine whether a pinout of a USB receptacle is shorted to ground. The example IC includes a power control module (PCM) to disable the controller when entering the low power mode. Upon receipt of an indication that the ID pinout of the USB receptacle is shorted to the ground, the PCM initiates a boot sequence.

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Allen, TX, United States of America

Bhargavi Nisarga