Title:
METHOD AND APPARATUS FOR GENERATING WORKING KEY, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/040410
Kind Code:
A1
Abstract:
A method for generating a working key, comprising: a terminal receiving an operation instruction sent by an upper computer and obtaining a working key use and a working key algorithm according to the operation instruction; the terminal configuring the working key use as a first use, generating derived data according to the first use, a master key identifier, a first numerical value, and a master key algorithm; determining the length of the working key according to the working key algorithm; obtaining data from a working key buffer as a key; generating, according to the key and the derived data, a working key that conforms to the length of the working key; performing a corresponding operation according to the operation instruction and the working key; and returning the operation result to the upper computer. The present invention also relates to an apparatus for generating a working key and a computer-readable storage medium and belongs to the technical field of information security; and in comparison with encryption solutions in the existing technology, the present invention is more secure and has a wider application range.
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Inventors:
LU ZHOU (CN)
Application Number:
PCT/CN2022/101736
Publication Date:
March 23, 2023
Filing Date:
June 28, 2022
Export Citation:
Assignee:
FEITIAN TECHNOLOGIES CO LTD (CN)
International Classes:
H04L9/08
Foreign References:
| CN113541947A | 2021-10-22 | |||
| CN108573176A | 2018-09-25 | |||
| US20200401721A1 | 2020-12-24 | |||
| JP2016103799A | 2016-06-02 |
Other References:
SUN LI, HAN JIN-CANG: "Cloud outsourced data security sharing technology based on hierarchical key management", SHENYANG GONGYE DAXUE XUEBAO - JOURNAL OF SHENYANG POLYTECHNICUNIVERSITY, GAI KAN BIANJIBU, SHENYANG, CN, vol. 40, no. 5, 30 September 2018 (2018-09-30), CN , pages 524 - 527, XP093048946, ISSN: 1000-1646, DOI: 10.7688/j.issn.1000-1646.2018.05.08
Attorney, Agent or Firm:
BEIJING WANG IP AGENCY, LTD. (CN)
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