Patents by Inventor Haitao Tu

Haitao Tu 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).

  • Patent number: 11316669
    Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: April 26, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Dongyan Wang, Maocai Li, Bo Li, Haitao Tu
  • Publication number: 20220091918
    Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui GUO, Maocai LI, QI ZHAO, Jianjun ZHANG, Haitao TU, Zongyou WANG, Jun LIANG, Dawei ZHU, Lisheng CHEN, Binhua LIU
  • Publication number: 20220067730
    Abstract: A data processing method is provided for a processing node. The method includes: transmitting a data acquisition request to a data node to cause the data node performing a preprocessing operation on source data according to the data acquisition request, generating target data, and recording operation information of the preprocessing operation in an operation ledger; receiving the target data and the operation ledger; auditing the target data by using the operation ledger in an audit, to determine whether the preprocessing operation is a valid operation; and adding the target data to an aggregated data set when the target data passes the audit, the aggregated data set comprising a plurality of pieces of data that pass the audit, the plurality of pieces of data that pass the audit being provided to a business node, so that the business node provides a business service to a user.
    Type: Application
    Filed: November 8, 2021
    Publication date: March 3, 2022
    Inventors: Dongyan WANG, Maocai LI, Zongyou WANG, Haitao TU, Qucheng LIU, Bo LI
  • Patent number: 11237896
    Abstract: The present disclosure discloses a distributed system and a message processing method. The distributed system includes a client and a plurality of nodes. The client includes processing circuitry that is configured to send a message including a digital signature of the client. The distributed system is in a first consensus mode for reaching a consensus on the message. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. After verifying the digital signatures of the subset of the nodes, the processing circuitry of the client determines, based on the results, whether one or more of the nodes in the distributed system is malfunctioned.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: February 1, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Qi Zhao, Jianjun Zhang, Haitao Tu, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
  • Patent number: 11214806
    Abstract: Disclosed is a marker for observing an effect of a compound or a drug on cells in real time. The marker is: 1) an amino acid sequence shown in SEQ No. 1 and/or SEQ No. 2; or 2) an amino acid sequence having a function for observing an effect of a compound or a drug on cells in real time and having at least more than 80%, preferably more than 85%, more preferably 90%, further preferably 95%, and most preferably 99% homology with the amino acid sequence shown in SEQ No. 1 and/or SEQ No. 2. Also disclosed is a method and a kit for observing an effect of a compound or a drug on cells in real time and use thereof.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 4, 2022
    Assignee: Foshan University
    Inventors: Shen Quan Pan, Qinghua Yang, Xiaoyang Li, Haitao Tu
  • Publication number: 20210243037
    Abstract: This application provides an information processing method in digital asset certificate inheritance transfer, and a related apparatus. The method includes: obtaining a will of a user; and triggering, in response to that a signature made on the will by using a public key of the authoritative entity node is successfully verified by using a private key of the authoritative entity node, transmission of a signature made on at least one digital asset certificate in the will by using a public key of a corresponding inheritor personal security kernel node to the inheritor personal security kernel node corresponding to each inheritor personal security kernel node identifier in the will. In the embodiments of this application, the digital asset certificates of the user are uniformly maintained.
    Type: Application
    Filed: April 22, 2021
    Publication date: August 5, 2021
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Dongyan WANG, Maocai LI, Bo LI, Haitao TU, Zongyou WANG
  • Publication number: 20210203482
    Abstract: Aspects of the disclosure are directed to a method for use on a blockchain network that includes an accounting node subnetwork having accounting nodes configured to record a data block onto a blockchain and a service node having service nodes configured to verify data blocks recorded by the accounting nodes onto the blockchain. The method can include generating a signature based on transaction information to be included in a data block to be added onto the blockchain by using a key specific to the accounting node. The method can further include adding the transaction information and the generated signature to the data block and adding the data block onto the blockchain, and transmitting the signature to the service nodes in the service node subnetwork, so that the service nodes perform signature verification on the signature based on the key specific to the accounting node.
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Maocai LI, Hu LAN, Zongyou WANG, Kaiban ZHOU, Haitao TU, Jinsong ZHANG, Yifang SHI, Changqing YANG, Li KONG, Gengliang ZHU, Yong DING, Qucheng LIU, Qiuping CHEN, Peng WANG
  • Publication number: 20210176044
    Abstract: Aspects of the disclosure provide methods and apparatuses for storing data. In some examples, an information processing apparatus that includes processing circuitry is provided. The processing circuitry is configured to receive data and determine a target blockchain based on an attribute associated with the data and blockchain correspondence information. The blockchain correspondence information indicates attributes associated with a plurality of blockchains. Further, the processing circuitry is configured to store a first block that is generated based on the received data in the target blockchain.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 10, 2021
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Rui GUO, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Qi Zhao, Haitao Tu, Binhua Liu, Dawei Zhu, Qing Qin
  • Publication number: 20210136073
    Abstract: The present disclosure provides an identity authentication method, a personal security kernel node, a device, and a medium. The personal security kernel node is part of an identity authentication system, the identity authentication system further comprising a relying party node and a user identity credential certifier node. The method includes: obtaining an identity authentication assurance level corresponding to a service provided by a relying party; determining, according to the identity authentication assurance level, a user identity credential used by a user for the service; transmitting the user identity credential to a user identity credential certifier node through a relying party node, so that the user identity credential certifier node performs user identity credential authentication; and performing the service with the relying party node. According to the embodiments of the present disclosure, security of user identity assets can be improved during identity authentication.
    Type: Application
    Filed: January 12, 2021
    Publication date: May 6, 2021
    Inventors: Dongyan WANG, Maocai LI, Bo LI, Haitao TU
  • Patent number: 10999061
    Abstract: Aspects of the disclosure provide methods and apparatuses for storing service data. In some examples, an apparatus for storing service data includes processing circuitry. The processing circuitry receives service data of a user and determines, in a plurality of blockchains, a target blockchain according to a user attribute of the user. Based on the service data and an eigenvalue of a block header of a first block in the target blockchain, the processing circuitry generates a second block in the target blockchain. The first block is a previous block of the second block. The second block is used for recording the service data.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: May 4, 2021
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Rui Guo, Maocai Li, Jun Liang, Jianjun Zhang, Zongyou Wang, Qi Zhao, Haitao Tu, Binhua Liu, Dawei Zhu, Qing Qin
  • Publication number: 20210105133
    Abstract: This application discloses an audit result data storage method and device, an audit result data query method and device, an audit item storage method and device, an electronic device and a medium. The method includes obtaining a first hash value of audit result data of a first user; signing the first hash value according to a private key of the first user to obtain first signature data; and transmitting the first signature data to an audit result data storage subsystem, the audit result data storage subsystem being configured to store data in the form of a blockchain.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 8, 2021
    Inventors: Dongyan WANG, Maocai LI, Bo LI, Haitao TU
  • Publication number: 20210049596
    Abstract: Embodiments of this disclosure disclose a resource transfer data management method and apparatus, and a storage medium, which belong to the field of Internet technologies. The method includes: receiving transaction data transmitted by a first server, wherein the transaction data is obtained by the first server by signing resource transfer data according to a private key of the first server; verifying the transaction data according to a public key of the first server; and generating a second block according to the transaction data and a feature value of a first block in a blockchain when the verification succeeds, and adding the second block as a next block of the first block to the blockchain.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Rui GUO, Maocai LI, Zongyou WANG, Haitao TU, Li KONG, Kaiban ZHOU, Changqing YANG, Nan WANG, Yong DING, Yifang SHI
  • Publication number: 20210027310
    Abstract: A method for electing a representative node device performed by a first node device in a blockchain system includes: broadcasting candidate addition transaction data in the blockchain system, the candidate addition transaction data carrying credential data, the credential data being received from a target server and indicating that a first node device meets a qualification requirement for a candidate node device; storing the candidate addition transaction data on a target blockchain of a blockchain system when a plurality of node devices in the blockchain system verify the candidate addition transaction data by consensus; and participating in an election of the representative node device according to the candidate addition transaction data stored on the target blockchain.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Inventors: Rui GUO, Maocai LI, Zongyou WANG, Haitao TU, Li KONG, Kaiban ZHOU, Changqing YANG, Nan WANG, Yong DING, Yifang SHI
  • Publication number: 20210027289
    Abstract: In a transaction method, transaction information is obtained. The transaction information includes a type identifier and quantity of first assets, and a type identifier and quantity of second assets. Transaction records, corresponding to a transaction in a block, are stored upon verification of the transaction information. The transaction records include first and second transaction records. The first transaction record includes first input and output items corresponding to the first assets, and the first input and output items each includes the type identifier of the first assets. The second transaction record includes second input and output items corresponding to the second assets, and the second input and output items each includes the type identifier of the second assets. The block is broadcasted to other nodes in the blockchain network, and verification results are received. The block is added to a blockchain of a current node based on the verification results.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Applicant: TENCENT TECHNOLOGY (SHENZEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Zongyou Wang, Haitao Tu, Li Kong, Kaiban Zhou, Changqing Yang, Nan Wang, Yong Ding, Yifang Shi
  • Publication number: 20210021419
    Abstract: A method for electing a representative node device is performed at a blockchain system, including: obtaining voting transaction data from the node devices, the voting transaction data being used for voting for one or more node devices of the blockchain system as representative node devices; generating and storing the voting transaction data into a target blockchain of the blockchain system when a plurality of node devices of the blockchain system verify the voting transaction data by consensus; and when a quantity of blocks in the target blockchain generated using the voting transaction data reaches a preset quantity, determining an election result according to quantities of votes of the node devices determined from the voting transaction data, the election result identifying a plurality of representative node devices in the blockchain system being configured to generate new blocks for the target blockchain and perform verification on the new blocks by consensus.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Rui GUO, Maocai LI, Zongyou WANG, Haitao TU, Li KONG, Kaiban ZHOU, Changqing YANG, Nan WANG, Yong DING, Yifang SHI
  • Publication number: 20210021412
    Abstract: A method for electing a representative node device for a blockchain system includes: receiving IP address information of a first node device, the first node device being in a candidate state for a representative node device; receiving, from the first node device, an IP address obtaining request for requesting IP address information of a representative node device; when the first node device is determined to be a representative node device of the blockchain system elected in a current election process, transmitting, to the first node device, an IP address list comprising IP address information of representative node devices elected in the current election process; and when the first node device is determined not to be a representative node device of the blockchain system elected in the current election process, skipping the IP address obtaining request.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Inventors: Rui GUO, Maocai Li, Zongyou Wang, Haitao Tu, Li Kong, Kaiban Zhou, Changqing Yang, Nan Wang, Yong Ding, Yifang Shi
  • Publication number: 20200372167
    Abstract: A data storage method is provided at a computer system, including: obtaining first data and second data of a target object, the first data and the second data being data of different dimensions for measuring any aspect of the target object from generation to existence; storing the first data and the second data of the target object in the first node; receiving audit information of the first node for indicating the first data and the second data stored in the first node; verifying the audit information based on target audit information of at least one target node that transacts with the first node; broadcasting a verification success notification in the data storage system in a case that the verification succeeds; and determining that a consensus on the audit information is reached in a case that the received verification success notification meets a consensus success condition.
    Type: Application
    Filed: August 12, 2020
    Publication date: November 26, 2020
    Inventors: Dongyan WANG, Maocai Li, Rui Guo, Haitao Tu, Bo Li, Jianjun Zhang
  • Patent number: 10833919
    Abstract: This application discloses a node device operation method, a work status switching apparatus, a node device, and a medium, and relates to the field of network technologies. The method includes: receiving voting requests of a plurality of node devices, a quantity of the plurality of node devices being greater than half a quantity of node devices in a system; obtaining cycle length information and latest log indexes from the voting requests of the plurality of node devices if a current node device operates in a leader state; and switching a current work status from the leader state to a follower state or a candidate state if all the cycle length information in the voting requests of the plurality of node devices is greater than cycle length information of the current node device and all the latest log indexes in the voting requests of the plurality of node devices are not less than a latest log index of the current node device.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: November 10, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Jun Liang, Haitao Tu, Qi Zhao, Zongyou Wang, Jianjun Zhang, Dawei Zhu, Binhua Liu
  • Patent number: 10795778
    Abstract: This application relates to a shared data recovery method performed at a first node of a data sharing system. The first node obtains a first eigenvalue of a first node after receiving a recovery request carrying a first block height; broadcasts the first eigenvalue to at least one second node and recovery indication information to the at least one second node. After determining, based on the first eigenvalue and a plurality of second eigenvalues, that data in shared data stored by all nodes of the data sharing system is consistent, the first node recovers data within a range of the first block height in the shared data after receiving a preset quantity of a plurality of pieces of recovery indication information, thereby ensuring consistency and security of data included in a block, and reducing pressure on a node of the data sharing system to store the shared data.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 6, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Jianjun Zhang, Haitao Tu, Qi Zhao, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
  • Publication number: 20200259665
    Abstract: A transaction data processing method includes: receiving a first transaction document from a device of a transaction initiator, the first transaction document being associated with identity labels of a plurality of transaction participants; separately performing identity authentication on the plurality of transaction participants according to the identity labels of the plurality of transaction participants, to obtain an identity authentication result.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Rui GUO, Dongyan WANG, Maocai LI, Jun LIANG, Jianjun ZHANG, Zongyou WANG, Binhua LIU, Haitao TU, Qing QIN, Bo LI