Title:
FILE SIGNATURE METHOD FOR OPERATING SYSTEM, FILE CHECK METHOD, AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/127516
Kind Code:
A1
Abstract:
A file signature method for an operating system, a file check method, and an apparatus. The file check method comprises: acquiring mirror files of an operating system (S400); acquiring a signature policy file and a private key file (S500); performing digital signature and encryption on a file matching a condition in the mirror files according to the signature policy file and the private key file, so as to obtain a secure mirror file (S600); acquiring a check signature policy file and a public key file (S700); and checking the secure mirror file according to the check signature policy file and the public key file, and if a check condition is satisfied, considering a file of the operating system secure (S800). Only a file recorded in a check signature policy file is checked, and accordingly the check efficiency is improved; a file digital signature is directly placed in a file attribute entry of a checked file, and the file is accessed and signature information is read after a system is started, and accordingly convenience is brought; a system file can be prevented being tampered with, and a single file or multiple files can be upgraded.
Inventors:
ZHANG MIN (CN)
RAN XIAOKAI (CN)
LIU XIANG (CN)
RAN XIAOKAI (CN)
LIU XIANG (CN)
Application Number:
PCT/CN2015/078902
Publication Date:
August 18, 2016
Filing Date:
May 13, 2015
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
G06F21/64
Foreign References:
| CN102025744A | 2011-04-20 | |||
| CN103250163A | 2013-08-14 | |||
| CN103761329A | 2014-04-30 | |||
| US6189100B1 | 2001-02-13 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
北京康信知识产权代理有限责任公司 (CN)
北京康信知识产权代理有限责任公司 (CN)
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