Title:
KEY ROTATION METHOD, DEVICE, ELECTRONIC APPARATUS, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/239059
Kind Code:
A1
Abstract:
The present application pertains to information security, and provides a key rotation method. The method comprises: generating multiple key pairs, and establishing an index for the multiple key pairs; extracting a random key pair from the multiple key pairs, and acquiring all stock data from a configuration database; performing, by using a random public key of the random key pair, encryption computation on the entire stock data to obtain first ciphertext corresponding to the entire stock data; determining, upon receiving a rotation request, a private key corresponding to the public key according to the index; performing, by using the private key, decryption computation on the first ciphertext to obtain plaintext; extracting a target key pair from the multiple key pairs; and performing, by using a target public key in the target key pair, encryption computation on the plaintext, and generating second ciphertext to respond to the rotation request, thereby improving a security level of all of the stock data. The present application further relates to block chain technology, and the target key pair is stored in a block chain.
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Inventors:
SHEN XIANGWEN (CN)
Application Number:
PCT/CN2021/096434
Publication Date:
December 02, 2021
Filing Date:
May 27, 2021
Export Citation:
Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
H04L9/30; G06F16/22; G06F21/64; G06Q20/38; G06Q40/04; H04L9/08; H04L29/06
Foreign References:
| CN108965279A | 2018-12-07 | |||
| CN105721393A | 2016-06-29 | |||
| CN111698088A | 2020-09-22 | |||
| CN107526974A | 2017-12-29 | |||
| US20180351740A1 | 2018-12-06 |
Attorney, Agent or Firm:
SHENZHEN SCIENBIZIP INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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