Techniques for verifying user intent and securely configuring computing devices
The embodiments set forth a technique for enabling a computing device to securely configure a peripheral computing device. According to some embodiments, the method can include the steps of (1) approving a request received from the peripheral computing device to engage in a setup procedure for the peripheral computing device, (2) receiving, from the peripheral computing device: (i) an audio signal that encodes a password and timing information, and (ii) a light signal. Additionally, the method can involve, in response to identifying that the timing information correlates with the light signal: (3) extracting the password from the audio signal, and (4) establishing a communication link with the peripheral computing device based on the password. In turn, the method can involve (5) providing configuration information to the peripheral computing device over the communication link.
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.
2. The method of claim 1 , further comprising, prior to receiving the first and second signals from the second device:
displaying a notification that indicates the second device is requesting to undergo a setup procedure, wherein the notification includes an option to accept the request or ignore the request; and
in response to receiving a selection of the option to accept the request:
indicating an approval of the request to the second device.
3. The method of claim 2 , wherein the notification comprises an image of the second device, a description of the second device, instructional information associated with the setup procedure, an animation, a video, a sound, or some combination thereof.
4. The method of claim 2 , wherein the request and the approval are transmitted using WiFi, Bluetooth, or NFC protocols.
5. The method of claim 1 , further comprising:
providing configuration information to the second device over the communication link, wherein the configuration information comprises WiFi network credentials, user account credentials, encryption key sets, or some combination thereof.
6. The method of claim 1 , wherein:
the first signal is transmitted using audio signals and the second signal is transmitted using light signals; or
the first signal is transmitted using light signals and the second signal is transmitted using audio signals.
7. The method of claim 6 , wherein:
the audio signals are produced by at least one speaker included on the second device, and the audio signals are received at the first device using at least one microphone included on the first device; and
the light signals are produced by at least one light source included on the second device, and the light signals are received at the first device using at least one camera on the first device.
8. A non-transitory computer readable storage medium configured to store instructions that, when executed by at least one processor included in a first device, cause the first device to establish a communication link with a second device, by carrying out steps that include:
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.
9. The non-transitory computer readable storage medium of claim 8 , wherein the steps further include, prior to receiving the first and second signals from the second device:
displaying a notification that indicates the second device is requesting to undergo a setup procedure, wherein the notification includes an option to accept the request or ignore the request; and
in response to receiving a selection of the option to accept the request:
indicating an approval of the request to the second device.
10. The non-transitory computer readable storage medium of claim 9 , wherein the notification comprises an image of the second device, a description of the second device, instructional information associated with the setup procedure, an animation, a video, a sound, or some combination thereof.
11. The non-transitory computer readable storage medium of claim 9 , wherein the request and the approval are transmitted using WiFi, Bluetooth, or NFC protocols.
12. The non-transitory computer readable storage medium of claim 8 , wherein the steps further include:
providing configuration information to the second device over the communication link, wherein the configuration information comprises WiFi network credentials, user account credentials, encryption key sets, or some combination thereof.
13. The non-transitory computer readable storage medium of claim 8 , wherein:
the first signal is transmitted using audio signals and the second signal is transmitted using light signals; or
the first signal is transmitted using light signals and the second signal is transmitted using audio signals.
14. The non-transitory computer readable storage medium of claim 13 , wherein:
the audio signals are produced by at least one speaker included on the second device, and the audio signals are received at the first device using at least one microphone included on the first device; and
the light signals are produced by at least one light source included on the second device, and the light signals are received at the first device using at least one camera on the first device.
15. A second device configured to establish a communication link with a first device, the second device comprising:
at least one processor; and
at least one memory storing instructions that, when executed by the at least one processor, cause the second device to carry out steps that include:
providing a request to the first device to establish the communication link with the first device;
generating an encryption key;
encrypting data using the encryption key to generate encrypted data;
providing, to the first device:
(1) a first signal that encodes the encryption key, and
(2) a second signal that encodes the encrypted data, wherein the first and second signals are transmitted through different transmission mediums; and
forming the communication link with the first device using the data.
16. The second device of claim 15 , wherein the first and/or second signals cause the first device to:
display a notification that indicates the second device is requesting to undergo a setup procedure, wherein the notification includes an option to accept the request or ignore the request; and
in response to receiving a selection of the option to accept the request:
indicate an approval of the request to the second device.
17. The second device of claim 16 , wherein the notification comprises an image of the second device, a description of the second device, instructional information associated with the setup procedure, an animation, a video, a sound, or some combination thereof.
18. The second device of claim 16 , wherein the request and the approval are transmitted using WiFi, Bluetooth, or NFC protocols.
19. The second device of claim 15 , wherein the steps further include:
receiving configuration information from the first device over the communication link, wherein the configuration information comprises WiFi network credentials, user account credentials, encryption key sets, or some combination thereof.
20. The second device of claim 15 , wherein:
the first signal is transmitted using audio signals and the second signal is transmitted using light signals; or
the first signal is transmitted using light signals and the second signal is transmitted using audio signals.