US 12,341,798 B2
Log management device, log management method, computer program product, and security attack detection and analyzing system
Takeshi Sugashima, Kariya (JP); and Masumi Egawa, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Jan. 9, 2023, as Appl. No. 18/151,680.
Application 18/151,680 is a continuation of application No. PCT/JP2021/021285, filed on Jun. 3, 2021.
Claims priority of application No. 2020-120721 (JP), filed on Jul. 14, 2020.
Prior Publication US 2023/0156027 A1, May 18, 2023
Int. Cl. H04L 9/40 (2022.01); H04L 41/5067 (2022.01); H04W 12/122 (2021.01)
CPC H04L 63/1425 (2013.01) [H04L 41/5067 (2013.01); H04L 63/1416 (2013.01); H04W 12/122 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A log management device comprising:
a receiver receiving a log generated by a security sensor;
a processor and memory configured to:
store the received log in the memory;
obtain a statistical calculation result by performing statistical analysis on a plurality of the logs in the log management device;
determine which of the log and the statistical calculation result is to be sent, from the log management device to a center device, according to a predetermined condition; and
a transmitter transmitting, from the log management device to the center device, at least one of the log or the statistical calculation result according to the predetermined condition.