Patent ID: 11930353
Assignee: TISSOT SA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method for communication management in order to allow a mobile device to participate in a method according to claim 1, comprising:
managing emitted messages, including:
preparing encrypted data by encryption of the at least one identifier of the emitter device and of the seed intended for single use or having the short period of validity, the encrypted data only being able to be decrypted by a limited group of mobile devices possessing a decryption key;
preparing and broadcasting messages containing encrypted data in the general broadcast mode in compliance with the short-range digital communication protocol;
if the short-range digital communication protocol provides that the message comprises the field for the address of the emitter device, the field is filled with the randomised address that does not identify the emitter device intended for single use or having a short period of use;
receiving messages emitted by other mobile devices, including an attempt to decrypt the received messages;
managing successfully decrypted received messages; and
managing the groups as well as encryption and/or decryption keys associated therewith.