US 12,207,091 B1
Systems and methods for protecting cellular network messages
Tao Wan, Ottowa (CA)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Jan. 22, 2024, as Appl. No. 18/419,245.
Application 18/419,245 is a division of application No. 17/220,446, filed on Apr. 1, 2021, granted, now 11,882,449.
Application 17/220,446 is a continuation in part of application No. 17/102,169, filed on Nov. 23, 2020.
Claims priority of provisional application 63/135,461, filed on Jan. 8, 2021.
Claims priority of provisional application 63/108,014, filed on Oct. 30, 2020.
Claims priority of provisional application 63/014,890, filed on Apr. 24, 2020.
Claims priority of provisional application 63/003,373, filed on Apr. 1, 2020.
Claims priority of provisional application 62/938,870, filed on Nov. 21, 2019.
Int. Cl. H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04W 4/06 (2009.01); H04W 12/106 (2021.01); H04L 9/00 (2022.01)
CPC H04W 12/106 (2021.01) [H04L 9/3242 (2013.01); H04L 9/3247 (2013.01); H04L 9/3263 (2013.01); H04L 9/3297 (2013.01); H04W 4/06 (2013.01); H04L 9/50 (2022.05)] 19 Claims
OG exemplary drawing
 
1. A system for broadcasting messages over a network, comprising:
a signing server;
a message server for broadcasting messages over a network, the message server in communication with the signing server and a client-side device,
wherein the signing server programmed to:
receive a digital signing request from the message server, wherein the digital signing request includes a Master Information Block (MIB) and a System Information Block (SIB);
compute a digital signature over the MIB, the SIB, and a timestamp; and
transmit the digital signature and timestamp to the message server in a signing response to the digital signing request, and
wherein the message server is programmed to:
transmit the digital signing request to the signing server; and
receive, from the signing server, the signing response to the digital signing request.