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. 22, 2015

Filed:

May. 31, 2012
Applicants:

Hyo Jin Yoon, Yongin-si, KR;

Seon Young Lee, Seoul, KR;

Tae Kyoung Kwon, Seoul, KR;

Soo Yeon Shin, Seoul, KR;

Jung Hee Cheon, Gwacheon-si, KR;

Inventors:

Hyo Jin Yoon, Yongin-si, KR;

Seon Young Lee, Seoul, KR;

Tae Kyoung Kwon, Seoul, KR;

Soo Yeon Shin, Seoul, KR;

Jung Hee Cheon, Gwacheon-si, KR;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0428 (2013.01); H04L 9/3073 (2013.01); H04L 9/3247 (2013.01); H04L 63/0442 (2013.01); H04L 63/126 (2013.01);
Abstract

Provided are an identity (ID)-based encryption and signature method and a terminal that use an ID of a transmitter or a receiver as a part of the filename or the extension of a file transmitted to the receiver by the transmitter. Accordingly, it is possible to enable a user to visually recognize that the file has been provided with security. Also, it is possible to designate an associated program for the extension, and the user can easily decrypt or verify the file through the designated associated program.


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