Secure software updates

摘要

Improved techniques to update software in electronic devices that are already in use are disclosed. In one embodiment, software can be updated in a secure and controlled manner using cryptography. The authenticity of the updated software as well as its appropriateness for the particular electronic device can be confirmed prior to update. The software can also be updated on a per module basis. In one embodiment, a server hosts software updates for various electronic devices, and supplies the appropriate software update to the electronic devices via a data network.

主权项

1. A method for upgrading software on an electronic device associated with a client device, the method comprising:
sending, from the client device, device information, to a host device via a first data link, wherein the device information includes a software version indicator, and the software version indicator corresponds to a first version of a software module on the electronic device; receiving, from the host device, a second version of the software module that is more current than the first version of the software module; and sending, from the client device and through a second data link that is different than the first data link, the second version of the software module to the electronic device.