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:
Dec. 13, 2012
Institute for Information Industry, Taipei, TW;
Jui-Ming Wu, New Taipei, TW;
You-Lian Huang, Taoyuan, TW;
Chih-Chiang Hsieh, Taipei, TW;
Emery Jou, Taipei, TW;
Institute For Information Industry, Taipei, TW;
Abstract
A major management apparatus, an authorized management apparatus, an electronic apparatus for delegated key management and key management methods thereof are provided. The major management apparatus generates a first delegation deployment message and a second delegation deployment message, which are transmitted to the authorized management apparatus and the electronic apparatus, respectively. The authorized management apparatus encrypts an original key management message into a key management message by an authorization key included in the first delegation deployment message. The original key management message includes an operation code and a key identity. The electronic apparatus decrypts the key management message into the original key management message by the authorization key included in the second delegation deployment message. The electronic apparatus selects an application key according to the key identity and operates the application key based on the operation code.