Electronic devices and corresponding methods for verifying device security prior to use

1. A method in an electronic device, the method comprising:

receiving, at a user interface of the electronic device, a request to authenticate the electronic device as a secure electronic device;

transmitting, with a communication device, the request to authenticate the electronic device to a remote electronic device across a network;

receiving, with the communication device from the remote electronic device, a security challenge;

obtaining, with one or more processors, a response to the security challenge using a secret key stored in an encrypted memory of the electronic device;

transmitting the response to the security challenge to the remote electronic device;

receiving, with the communication device from the remote electronic device, a shared secret content marker, and

presenting, with the one or more processors on the user interface, the shared secret content marker; wherein the shared secret content marker identifies that the electronic device is the secure electronic device.

2. The method of claim 1 , the secret key comprising a manufacturer-programmed key programmed into the encrypted memory during the manufacture of the electronic device.

3. The method of claim 1 , wherein the

shared secret content marker comprises a picture.

4. The method of claim 1 , the shared secret content marker comprising one or more graphical images, the presenting comprising displaying the one or more graphical images on a display of the electronic device.

5. The method of claim 1 , the shared secret content marker comprising one or more audio signals, the presenting comprising emitting the one or more audio signals by one or more loudspeakers of the electronic device.

6. The method of claim 1 , wherein:

the request to authenticate the electronic device as the secure electronic device is received from a person attempting to authenticate the electronic device;

and

the shared secret content marker is known only to the person attempting to authenticate the electronic device.

7. The method of claim 1 , further comprising:

requesting, by the one or more processors at the user interface, user identification credentials;

receiving, by the one or more processors at the user interface, the user identification credentials; and

transmitting, with the communication device to the remote electronic device, the user identification credentials.

8. The method of claim 1 , wherein the security challenge comprises a message.

9. The method of claim 8 , wherein an answer to the message is a function of the secret key.

10. The method of claim 1 , wherein the response to the security challenge comprises a hashed message.

11. The method of claim 1 , further comprising also receiving one of a companion electronic device identifier or one or more user identification credentials from the remote electronic device.

12. An electronic device, comprising:

a communication device in communication with a remote electronic device;

one or more processors operable with the communication device; and

an encrypted memory operable with the one or more processors;

the communication device receiving a request to authenticate the remote electronic device as a secure electronic device;

the one or more processors generating a security challenge in response to receiving the request;

the communication device transmitting the security challenge to the remote electronic device and receiving a response to the security challenge from the remote electronic device; and

the one or more processors determining whether the response to the security challenge from the remote electronic device matches an expected response to the security challenge that is a function of a secret key assigned to the remote electronic device;

wherein the communication device receives the response to the security challenge from the remote electronic device and determines whether the response to the security challenge matches the expected response before any user identification credentials or other user personal information is entered to the remote electronic device; and

the communication device also receiving one of a companion electronic device identifier or one or more user identification credentials from the remote electronic device;

the one or more processors determining whether the one of the companion electronic device identifier matches an expected companion device identifier or the one or more user identification credentials match one or more expected user identification credentials and, where the one of the companion electronic device identifier matches the expected companion device identifier or the one or more user identification credentials match the one or more expected user identification credentials, the one or more processors:

obtaining, from the encrypted memory, a shared secret; and

causing the communication device to transmit the shared secret to the remote electronic device;

wherein the remote electronic device comprises a companion electronic device in communication with another electronic device.

13. The electronic device of claim 12 , wherein the shared secret is a function of another secret key.

14. The electronic device of claim 13 , wherein the another secret key is stored within an encrypted memory.

15. The electronic device of claim 12 , wherein the shared secret comprises a shared secret content marker known only to a user of the remote electronic device.

16. The electronic device of claim 12 , wherein the companion electronic device comprises a handheld device.

17. The electronic device of claim 12 , the one or more processors further obtaining, from the encrypted memory, a security message that is a function of another shared key stored in the encrypted memory and causing the communication device to transmit the security message to the remote electronic device.

18. A method in an electronic device, the method comprising:

receiving, at a user interface of the electronic device, a request to authenticate the electronic device as a secure electronic device;

transmitting, with a communication device, the request to authenticate the electronic device to a remote electronic device across a network;

receiving, with the communication device from the remote electronic device, a security challenge;

obtaining, with one or more processors, a response to the security challenge using a secret key stored in an encrypted memory of the electronic device;

transmitting the response to the security challenge to the remote electronic device;

receiving, with the communication device from the remote electronic device, a shared secret content marker; and

presenting, with the one or more processors at the user interface, the shared secret content marker;

wherein the shared secret content marker comprises one or more graphical images or one or more audio signals.

19. The method of claim 18 , wherein the remote electronic device comprises a cloud server.

20. The method of claim 18 , wherein the secret key comprises a manufacturer-programmed secret key.