Title:
METHOD FOR IMPROVING SECURITY OF TRUSTED APPLICATION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/144640
Kind Code:
A1
Abstract:
Provided by the present invention is a method for improving the security of a trusted application program, applicable to a smart device, wherein the method comprises the following steps: step S1, an upper computer signing a trusted application program by means of a hierarchical signature so as to generate a signature file package related to the trusted application program and saving the signature file package to a main operating system; step S2, a secure execution system being used to acquire the signature file package from within the main operating system and loading the signature file package into a second operating environment; step S3, the secure execution system parsing the signature file package to obtain a parsing result; and step S4, the secure execution system performing hierarchical verification on the parsing result, and if the verification passes, indicating that the current trusted application program is in a secure state; and if the verification does not pass, indicating that the trusted application program is in a non-secure state. The described technical solution has the beneficial effects of overcoming the shortcomings in existing technology of an authentication means lacking security for trusted application programs and the security level being lower due to merely using a simple digital signature mechanism.
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Inventors:
JIANG PEIFU (CN)
ZHU PENGGUANG (CN)
CAO QI (CN)
WAN YONG (CN)
ZHU PENGGUANG (CN)
CAO QI (CN)
WAN YONG (CN)
Application Number:
PCT/CN2018/108106
Publication Date:
August 01, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
AMLOGIC SHANGHAI CO LTD (CN)
International Classes:
G06F21/56; G06F21/45; G06F21/64
Domestic Patent References:
| WO2017208064A1 | 2017-12-07 |
Foreign References:
| CN108399329A | 2018-08-14 | |||
| CN106936774A | 2017-07-07 | |||
| CN104993932A | 2015-10-21 | |||
| CN107315959A | 2017-11-03 |
Attorney, Agent or Firm:
SHANGHAI SHENXIN LAW FIRM (CN)
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