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. 19, 2013
Filed:
Jun. 21, 2010
Applicants:
Chung-i Lee, Taipei Hsien, TW;
Chien-fa Yeh, Taipei Hsien, TW;
Shan-chuan Jeng, Taipei Hsien, TW;
Inventors:
Assignee:
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electronic document comparison system and method converts a test file into a compressed file having a specific format. A public key of the CA certificate of a user is obtained and a random key is generated using a random function. Furthermore, the compressed file is symmetrically encrypted using the random key, and the random key is asymmetrically encrypted using the public key to generate an asymmetric encryption key. A header of the compressed file is attached with the asymmetric encryption key and data length of the asymmetric encryption key.