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:
Oct. 02, 2012

Filed:

Apr. 02, 2007
Applicants:

Yun-ho Choi, Gangnam-gu, KR;

Cheul-hee Hahm, Seongnam-si, KR;

Chang-yong Heo, Gangnam-gu, KR;

Inventors:

Yun-ho Choi, Gangnam-gu, KR;

Cheul-hee Hahm, Seongnam-si, KR;

Chang-yong Heo, Gangnam-gu, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/177 (2006.01);
U.S. Cl.
CPC ...
Abstract

A security method and a security apparatus are disclosed which use a self-generated encryption key. The security method includes the steps of: generating an encryption key; decrypting pre-encrypted data using a pre-stored manufacturer key; and re-encrypting the decrypted data using the encryption key. The security method and apparatus minimize external leakage of data by self-generating the unique encryption key. Since the encryption keys are unique in each set, set binding is possible.


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