Patents by Inventor Ping ZHEN

Ping ZHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device employing smart contract to realize identity-based key management
    Patent number: 12184775
    Abstract: Provided are a method and device employing a smart contract to realize identity-based key management. The method comprises: running a smart contract, and executing a key management process, wherein the key management process comprises: when a key of a target user requires an update and the target user is not a supervised user, generating a master public key and a master private key pertaining to the target user; acquiring, from a blockchain, identity information of the target user; generating a first target private key according to the master public key and the master private key pertaining to the target user and the identity information of the target user; and replacing a current private key of the target user with the first target private key.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: December 31, 2024
    Assignees: STATE GRID CORPORATION OF CHINA, STATE GRID DIGITAL TECHNOLOGY HOLDING CO., LTD., STATE GRID XIONG'AN FINANCIAL TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongwei Yang, Dong Wang, Wei Jiang, Ping Zhen, Jiaxing Xuan, Guomin Li, Xin Shi, Wanli Ma, Junwei Ma, Yang Wang, Lei Zhou
  • METHOD AND DEVICE EMPLOYING SMART CONTRACT TO REALIZE IDENTITY-BASED KEY MANAGEMENT
    Publication number: 20220158834
    Abstract: Provided are a method and device employing a smart contract to realize identity-based key management. The method comprises: running a smart contract, and executing a key management process, wherein the key management process comprises: when a key of a target user requires an update and the target user is not a supervised user, generating a master public key and a master private key pertaining to the target user; acquiring, from a blockchain, identity information of the target user; generating a first target private key according to the master public key and the master private key pertaining to the target user and the identity information of the target user; and replacing a current private key of the target user with the first target private key.
    Type: Application
    Filed: June 18, 2019
    Publication date: May 19, 2022
    Inventors: Dongwei YANG, Dong WANG, Wei JIANG, Ping ZHEN, Jiaxing XUAN, Guomin LI, Xin SHI, Wanli MA, Junwei MA, Yang WANG, Lei ZHOU