Patent ID: 11902270
Assignee: ORANGE
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method of preparing usage data for a relay implemented in a computer network comprising at least one source device, one destination device, at least one shared memory and at least one relay constituting a circuit to set up a communication between the source device and the destination device, implemented in the destination device and comprising;
receiving the identifier of each of the at least one relay present in the circuit;
receiving a request for generating a proof of use, called a PoU frame, coming from the source device and containing at least one signature made by each of the at least one relay from a challenge and a key proper to each of the at least one relay, the PoU frame comprising a value of the challenge used by each of the at least one relay to compute the signatures; and
verifying received signatures by using the public keys of each of the at least one relay of the circuit, the authentication of the signatures triggering the following:
preparing, from the data received, an ordered list of identifiers of the at least one relay used to set up the communication,
sending transaction frames addressed to each of the at least one relay identified in the list to generate proofs of use of the at least one relay comprising at least the signatures contained in the PoU frame, the transaction frames being designed to trigger the sending, by each of the at least one relay, of a proof of use recorded in a shared memory.