Fitting devices, server devices and methods of remote configuration of a hearing device
A method performed by a fitting device, the fitting device being a part of a hearing system configured for remotely configuring a hearing device, the method includes: obtaining hearing device data comprising a hearing device identifier of the hearing device; obtaining a session key; generating a configuration initiation request based on the session key and the hearing device identifier; transmitting the configuration initiation request to a server device; receiving a configuration initiation response from the server device, the configuration initiation response comprising configuration keying material; generating a configuration package based on configuration data for the hearing device and based on the configuration keying material, the configuration package comprising configuration package data; and transmitting the configuration package to the server device.
1. A method performed by a fitting device, the fitting device being a part of a hearing system configured for remotely configuring a hearing device, the method comprising:
obtaining hearing device data comprising a hearing device identifier of the hearing device;
obtaining a session key;
generating a configuration initiation request based on the session key and the hearing device identifier;
transmitting the configuration initiation request to a server device;
receiving a configuration initiation response from the server device, the configuration initiation response comprising configuration keying material;
generating a configuration package based on configuration data for the hearing device and based on the configuration keying material, the configuration package comprising configuration package data; and
transmitting the configuration package to the server device;
wherein the configuration package data comprises a configuration payload block, and wherein the configuration payload block comprises (1) the configuration data in encrypted form and/or (2) encrypted configuration data integrity indicator.
2. The method according to claim 1 , wherein the act of generating the configuration initiation request comprises encrypting the session key using a configuration initiation public key, and including the encrypted session key in the configuration initiation request.
3. The method according to claim 1 , wherein the hearing device data comprises a shared index, a fitting device key identifier, an address identifier, fitting information, or any combination of the foregoing.
4. The method according to claim 1 , wherein the configuration keying material is encrypted, and wherein the method further comprises decrypting the configuration keying material.
5. The method according to claim 1 , wherein the act of generating the configuration package comprises obtaining the configuration data integrity indicator, and wherein the configuration package data is based on the configuration data integrity indicator.
6. The method according to according to claim 1 , wherein the act of generating the configuration package comprises encrypting the configuration data and/or the configuration data integrity indicator.
7. The method according to claim 1 , wherein the configuration package data also comprises a control block.
8. The method according to claim 6 , wherein the configuration data and/or the configuration data integrity indicator is encrypted using the configuration keying material.
9. The method according to claim 1 , wherein the act of generating the configuration package comprises encrypting the configuration package data.
10. The method according to claim 1 , further comprising:
sending an access request to the server device; and
receiving an access response from the server device.
11. The method according to claim 1 , further comprising deleting the session key and the configuration keying material after the configuration package is transmitted.
12. A fitting device configured to perform the method of claim 1 .