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:
Mar. 21, 2023

Filed:

Feb. 19, 2020
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Kota Ideguchi, Tokyo, JP;

Eriko Ando, Tokyo, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 12/0862 (2016.01); H04L 67/5682 (2022.01);
U.S. Cl.
CPC ...
H04L 63/0823 (2013.01); G06F 12/0862 (2013.01); H04L 63/166 (2013.01); H04L 67/5682 (2022.05); G06F 2212/602 (2013.01);
Abstract

When a client certificate is required to connect to a client according to a predetermined communication protocol, a server receives a connection request that is a message associated with specific information from the client in a handshake for connection with the client. The server makes a client judgement as to whether or not a cache hit occurs, which is to find a summary client certificate in a cache area using the specific information associated with the connection request. When the result of the client judgement is true, the server returns to the client a connection response including hit information indicating that a cache hit occurs.


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