Title:
KEY PRESERVATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/205056
Kind Code:
A1
Abstract:
Disclosed is a key preservation method. The method comprises: S101. acquiring a state of an NFC unit in a mobile terminal, if the NFC unit is in an inductive operation state, constructing a communication path between the NFC unit and a cache unit, otherwise, cutting off the communication path; S102. acquiring a state of information transmission between the NFC unit and the cache unit, and if the NFC unit transmits key information to the cache unit, encrypting the key information and saving the key information in a secure domain of the cache unit; and S103. determining whether a user identification chip in the mobile terminal is missing, if so, deleting the key information in the secure domain, and if not, decrypting the key information so as to open an interaction permission between the mobile terminal and an application terminal. Further disclosed is a key preservation system. The present invention can provide a key preservation method with high security.
Inventors:
LI ZHUOXI (CN)
Application Number:
PCT/CN2017/083370
Publication Date:
November 15, 2018
Filing Date:
May 07, 2017
Export Citation:
Assignee:
SHENZHEN ZHUOXI TECH COMPANY LIMITED (CN)
International Classes:
G06F21/60
Domestic Patent References:
| WO2017012176A1 | 2017-01-26 |
Foreign References:
| CN106301485A | 2017-01-04 | |||
| CN105872955A | 2016-08-17 | |||
| US20150044964A1 | 2015-02-12 | |||
| US20110018683A1 | 2011-01-27 | |||
| CN103870759A | 2014-06-18 |
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