Patent ID: 9306742
Filing Date: 2016-04-05
CPC Classification: H04L

Claim Text:
1. A computer-implemented method for providing a cryptographic key having a plurality of portions, comprising: sending a first portion of the cryptographic key over a secure channel, from a first home automation device in a home automation network, to a second device distinct from the first device, wherein the sending of the first portion of the cryptographic key from the first device to the second device comprises displaying the first portion to a user through a limited output display of the first device, to allow the user to enter the first portion into the second device through a keypad of the second device; clearing the display after displaying the first portion of the cryptographic key; receiving over a non-secure channel, by the first device from a third device different than the second device, a command to provide a second portion of the cryptographic key; sending over the secure channel, from the first device to the second device, the second portion of the cryptographic key, wherein the sending of the second portion from the first device to the second device comprises displaying the second portion to the user through the display, to allow the user to enter the second portion into the second device through the keypad; and determining that all of the plurality of portions of the cryptographic key have been sent.