Title:
SECRET KEY SECURITY METHOD OF DISTRIBUTING AND STORING KEY IN BLOCKCHAIN NODE AND/OR POSSESSION DEVICE HAVING WALLET APP INSTALLED THEREIN
Document Type and Number:
WIPO Patent Application WO/2020/204444
Kind Code:
A3
Abstract:
Provided is a secret key security method of distributing and storing a key in a blockchain node and/or a possession device having a wallet app installed therein, the method comprising the steps of: dividing a wrap key into two or more divided wrap key fragments and an enc key into two or more divided enc key fragments according to a random ratio by using a device eigenvalue generated by hardware of a possession device or a value generated by software in a wallet app; combining the wrap key fragments and the enc key fragments into random combinations thereof, respectively, such that the former and the latter are arranged one after another in each combination; and distributing and storing the combined fragment combinations in a blockchain node and/or the possession device having the wallet app installed therein. The present invention can enhance security in user authentication for a mobile banking service, a simple payment service, various FinTech services, an online electronic financial transaction, electronic authentication and electronic payment signature for a financial transaction action and a payment action, and the like.
More Like This:
Inventors:
KIM MIN SOO (KR)
HAN KYUNG SU (KR)
HAN KYUNG SU (KR)
Application Number:
PCT/KR2020/004042
Publication Date:
December 17, 2020
Filing Date:
March 25, 2020
Export Citation:
Assignee:
NURI TELECOM CO LTD (KR)
NURIFLEX INC (US)
NURIFLEX INC (US)
International Classes:
G06Q20/32; G06Q20/06; G06Q20/36; G06Q20/38
Foreign References:
| KR20170087663A | 2017-07-31 | |||
| KR101867326B1 | 2018-06-14 | |||
| KR20180104586A | 2018-09-21 | |||
| KR101792220B1 | 2017-11-02 | |||
| KR20140096594A | 2014-08-06 |
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
Download PDF: