Secure wireless communication for an implantable component
Embodiments presented herein are generally directed to techniques for creation of a direct secured wireless link/channel between an implantable component and an external device of an implantable medical device system. More specifically, the implantable medical device system includes an external component that is configured to operate as a temporary secure proxy device for wireless pairing of the implantable component with the external device.
1. An implantable medical device system, comprising:
an implantable component configured to be implanted in a recipient of the implantable medical device system;
an external device; and
an external component configured to be attached to the recipient and configured to operate as a temporary secure proxy device for wireless pairing of the implantable component with the external device,
wherein to operate as a temporary secure proxy device for wireless pairing of the external device with the implantable component, the external component is configured to:
implement a pairing process with the external device to obtain security data for formation of a non-closely coupled wireless connection between the external component and the external device, and
transfer the security data of the closely coupled wireless connection to the implantable component over a closely-coupled wireless connection formed between the external component and the implantable component.
2. The implantable medical device system of claim 1 , wherein the external component is configured to enable authenticated pairing of the implantable component with the external device.
3. The implantable medical device system of claim 1 , wherein the implantable component is configured to use the security data to securely spoof the non-closely coupled wireless connection between the external component and the external device.
4. The implantable medical device system of claim 1 , wherein after the external component transfers the security data to the implantable component, the external component is configured to locally delete the security data.
5. The implantable medical device system of claim 1 , wherein the implantable component is configured to operate as a secure router device enabling secure communication between the external component and the external device.
6. The implantable medical device system of claim 1 , wherein the implantable component is a cochlear implant.
7. A method, comprising:
generating a first set of security data for formation of a secure non-closely coupled connection between an external device and an external component of an implantable medical device system;
transferring the first set of security data to an implantable component of the implantable medical device system; and
at the implantable component, using the first set of security data to imitate the external component for direct communication with the external device over the secure non-closely coupled connection.
8. The method of claim 7 , wherein generating security data for formation of the secure non-closely coupled connection between the external device and the external component comprises:
performing an authenticated pairing process such that the secure non-closely coupled connection includes man-in-the-middle (MITM) protection.
9. The method of claim 7 , wherein transferring the first set of security data to an implantable component comprises:
transferring the first set of security data to the implantable component over a closely-coupled wireless connection formed between the external component and the implantable component.
10. The method of claim 9 , further comprising:
transferring the first set of security data to the implantable component using a low power communication mode to limit the range of the closely-coupled wireless connection.
11. The method of claim 7 , wherein after the external transfers the first set of security data to the implantable component, the method further comprises:
locally deleting the first set of security data at the external component.
12. The method of claim 11 , further comprising:
receiving, at the implantable component, data over the secure non-closely coupled connection, wherein the data is directed to the external component;
transferring the data from the implantable component to the external component over a closely-coupled wireless connection formed between the external component and the implantable component.
13. The method of claim 11 , wherein after locally deleting the first set of security data at the external component, the method further comprises:
generating a second set of security data for formation of a second secure non-closely coupled connection between the external device and the external component of the implantable medical device system.
14. An implantable medical device system, comprising:
an implantable component configured to be implanted in to a recipient of the implantable medical device system; and
an external component having a first unique device address assigned thereto, wherein the external component is configured to:
use the first unique device address to wirelessly pair the external component with an external device and form a non-closely coupled wireless connection between the external component and the external device, and
transfer the first address to the implantable component,
wherein the implantable component is configured to use the first address to communicate with the external device on the non-closely coupled wireless connection formed between the external component and the external device.
15. The implantable medical device system of claim 14 , wherein the external component is configured to transfer the first unique device address to the implantable component over a closely coupled wireless connection formed between the external component and the implantable component.
16. The implantable medical device system of claim 14 , wherein the implantable component is configured to use the first address to securely spoof the non-closely coupled wireless connection between the external component and the external device.
17. The implantable medical device system of claim 14 , wherein the external component has both the first unique device address and a second unique device address assigned, and wherein after the external component transfers the first address to the implantable component, the external component is configured make the external component discoverable to the external device using the second unique device address.
18. The implantable medical device system of claim 17 , wherein the external component is configured to use the second unique address to wirelessly pair the external component with the external device and form a second non-closely coupled wireless connection between the external component and the external device.
19. An implantable medical device system, comprising:
an implantable component configured to be implanted in a recipient of the implantable medical device system;
an external device; and
an external component configured to be attached to the recipient and configured to operate as a temporary secure proxy device for wireless pairing of the implantable component with the external device,
wherein to operate as a temporary secure proxy device for wireless pairing of the external device with the implantable component, the external component is configured to:
implement a pairing process with the external device to obtain security data for formation of a non-closely coupled wireless connection between the external component and the external device, and
transfer the security data of the closely coupled wireless connection to the implantable component,
wherein the implantable component is configured to use the security data to securely spoof the non-closely coupled wireless connection between the external component and the external device.
20. The implantable medical device system of claim 19 , wherein the external component is configured to enable authenticated pairing of the implantable component with the external device.
21. The implantable medical device system of claim 19 , wherein the external component is configured to transfer the security data to the implantable component over a closely-coupled wireless connection formed between the external component and the implantable component.
22. The implantable medical device system of claim 19 , wherein after the external component transfers the security data to the implantable component, the external component is configured to locally delete the security data.
23. The implantable medical device system of claim 19 , wherein the implantable component is configured to operate as a secure router device enabling secure communication between the external component and the external device.