US 12,407,679 B2
Sending and receiving messages
Brecht Wyseur, Cheseaux-sur-Lausanne (CH)
Assigned to NAGRAVISION SARL, Cheseaux-sur-Lausanne (CH)
Filed by NAGRAVISION SARL, Cheseaux-sur-Lausanne (CH)
Filed on Feb. 12, 2024, as Appl. No. 18/438,741.
Application 18/438,741 is a continuation of application No. 17/270,556, granted, now 11,936,643, previously published as PCT/EP2019/071784, filed on Aug. 14, 2019.
Claims priority of application No. 18190859 (EP), filed on Aug. 24, 2018.
Prior Publication US 2024/0214375 A1, Jun. 27, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/32 (2006.01); H04L 9/40 (2022.01)
CPC H04L 63/083 (2013.01) [H04L 9/3242 (2013.01); H04L 2209/043 (2013.01)] 17 Claims
OG exemplary drawing
 
12. A method of receiving a message, the method comprising:
combining each message of a plurality of messages with an authentication key to compute, for each message of the plurality of messages, a respective message tag of a plurality of message tags for validating one or more message tags associated with one or more messages;
storing the plurality of messages and the plurality of message tags in a memory;
receiving a message-tag pair, the message-tag pair comprising a message tag and a corresponding message, from a message-sending device;
validating the received message tag based on comparing the received message tag with the stored plurality of message tags to identify a matching message tag;
in response to a trigger event, updating the authentication key for computing one or more updated message tags;
combining each of the plurality of messages with the updated authentication key to compute a plurality of updates message tags; and
storing the plurality of updated message tags in the memory.