IDiyas

For the Inventor, By the Inventor

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.

Patent No.:

US 10305685 B1

PDFFull Text
Date of Patent:
May. 28, 2019

Filed:

Jul. 19, 2016

Communications system and communications method

Applicants:

Tsutomu Kawase, Kanagawa, JP;

Masahiko Itoh, Kanagawa, JP;

Fumihiko Itoh, Kanagawa, JP;

Tadanori Ryu, Kanagawa, JP;

Kei Inaba, Kanagawa, JP;

Inventors:

Tsutomu Kawase, Kanagawa, JP;

Masahiko Itoh, Kanagawa, JP;

Fumihiko Itoh, Kanagawa, JP;

Tadanori Ryu, Kanagawa, JP;

Kei Inaba, Kanagawa, JP;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Kambiz Zand

Assistant Examiner:

Benjamin A Kaplan

Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/16 (2006.01); H04L 9/32 (2006.01); G06F 21/35 (2013.01); G06F 21/62 (2013.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/083 (2013.01); G06F 21/35 (2013.01); G06F 21/6245 (2013.01); H04L 9/0861 (2013.01); H04L 9/0891 (2013.01); H04L 9/16 (2013.01); H04L 9/32 (2013.01); H04L 63/0428 (2013.01);
Abstract

An identification information transmitter encrypts identification information for identifying a person or an object using an encryption key, transmits the encrypted identification information, and, after receiving another encryption key, switches the encryption key from the encryption key to the other encryption key. A server receives the encrypted identification information from the identification information transmitter, determines whether the encryption key is to be switched, and, if the encryption key is to be switched, generates the other encryption key. Another server authenticates the identification information that an identification information receiver receives from the identification information transmitter, and, if authentication is successful, acquires the other encryption key from the server, and transmits the other encryption key to the identification information receiver. The identification information receiver, when receiving the other encryption key from the second server, transmits the other encryption key to the identification information transmitter.

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