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.:
Date of Patent:
Feb. 03, 2015
Filed:
Feb. 11, 2011
Applicants:
Masaki Nakagawa, Kanagawa, JP;
Alain Volmat, Tokyo, JP;
Takahiro Asai, Kanagawa, JP;
Inventors:
Assignee:
Ricoh Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/33 (2013.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0823 (2013.01); G06F 21/33 (2013.01); H04L 9/0897 (2013.01); H04L 9/321 (2013.01); H04L 9/3226 (2013.01); H04L 2209/60 (2013.01); H04L 2209/80 (2013.01);
Abstract
An authentication system receives encrypted terminal identification information and terminal identification information, from a transmission terminal, and determines whether decrypted identification information decrypted using a terminal public key obtained by the authentication system matches the terminal identification information received from the transmission terminal.