Electronic device provided with cryptographic circuit and method of establishing the same

摘要

The present invention provides for an electronic device having cryptographic computation means arranged to generate cryptographic data within the device for enhancing security of communications therewith, the device including an onboard power supplying means arranged to provide for the driving of the said cryptographic computational means, and so as to provide a device by way of a manufacturing phase and a post manufacturing phase arranged for distribution and/or marketing of the device, and wherein the step of generating the cryptographic data occurs during the post manufacturing phase.

主权项

1. An electronic device having:
a cryptographic computation circuit configured to generate cryptographic data, that includes a key pair with both a public key and a private key, within the electronic device for enhancing security of communications therewith; an onboard power supply circuit; and a power control circuit coupled to the onboard power supply circuit and configured to selectably provide a first electrical connection between the power supply circuit and the cryptographic circuit and, independent of the first electrical connection, selectably provide one or more additional electrical connections between the power supply circuit and other circuits of the electronic device, the power control circuit configured to inhibit power to the other circuits until the generation of the cryptographic data is complete.