The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 03, 2024

Filed:

Sep. 16, 2019
Applicant:

Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;

Inventors:

Aymen Boudguiga, Antony, FR;

Oana Stan, Massy, FR;

Renaud Sirdey, Cernay-la-Ville, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2013.01); H04L 9/00 (2022.01); H04L 9/06 (2006.01); H04L 9/32 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1425 (2013.01); H04L 9/008 (2013.01); H04L 9/065 (2013.01); H04L 9/3242 (2013.01); H04L 9/3247 (2013.01); H04L 9/3263 (2013.01);
Abstract

The present invention concerns a method for processing system logs of a computer system. A system log generator (LG) transmits these system logs to a system log analyser (SIEM) after they have been encrypted by means of a symmetric encryption key and sends the symmetric encryption key in parallel with a homomorphic cryptosystem public key. The system log analyser carries out a transcryption of these logs then a processing thereof in the homomorphic domain. The result of the processing in the homomorphic domain is then transmitted to a security centre (SOC) or even directly to the system log generator to be decrypted there. The security centre can establish a security report or propose a countermeasure before sending it, in form encrypted by the symmetric key, to the system log generator.


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