CPC H04L 63/083 (2013.01) [G06F 21/00 (2013.01); G06F 21/45 (2013.01); H04L 63/18 (2013.01); H04W 12/06 (2013.01); H04W 12/50 (2021.01)] | 20 Claims |
1. A method, comprising, by at a first device:
establishing a communication link with a second device by:
approving a request received from the second device to establish the communication link with the second device;
receiving, from the second device:
(1) a first signal that encodes an encryption key, and
(2) a second signal that encodes encrypted data, wherein the first and second signals are transmitted through different transmission mediums;
using the encryption key:
decrypting the encrypted data to produce decrypted data; and
using the decrypted data:
forming the communication link with the second device.
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