Tencent Technology (shenzhen) Company Limited

Zong You Wang

Mao Cai Li

Jian Zhang

Kai Zhou

Rui Guo

Hu Lan

Li Kong

Hai Tao Tu

Chang Qing Yang

Yi Fang Shi

Jun Liang

Jin Zhang

Bin Hua Liu

Qi Zhao

Geng Liang Zhu

Qu Cheng Liu

Da Wei Zhu

Qiu Ping Chen

Pan Liu

Yong Ding

Qing Qin

Wen Zou

Jun Zang

Nan Wang

Zi Chao Tang

Qing Zheng Shang

Qui Ping Chen

A method and device for issuing an identity certificate to a blockchain node in a blockchain network includes issuing a first identity certificate to a first terminal. a second identity certificate issuance request that is from the first terminal and that is made by using the first identity certificate is received and a second identity certificate is issued to the first terminal, which forwards the second identity certificate to a second terminal. A third identity certificate issuance request that is from the second terminal and that is made by using the second identity certificate is received and a third identity certificate is issued to the second terminal, which forwards the third identity certificate to a third terminal.

Method for issuing identity certificate to blockchain node and related apparatus

An identity certificate may be issued to a blockchain node. The issuance may include issuing a first identity certificate to a first terminal and receiving a second identity certificate issuance request that is from the first terminal. A second identity certificate may be issued to the first terminal, and a third identity certificate issuance request is received from the second terminal. A third identity certificate is issued to the second terminal, so that the second terminal forwards the third identity certificate to the third terminal.

The disclosure provides a method for recording a data block on a blockchain, a leader accounting node, and a storage medium. The method includes: generating a target data block; determining whether the plurality of branch blockchains include a branch blockchain having at least one data block waiting to be added onto the blockchain and for which no consensus has been reached; based on a determination that first branch blockchains have no data block waiting to be added onto the blockchain and for which no consensus has been reached, selecting, from the first branch blockchains, a branch blockchain for recording the target data block; recording a digest value of a previous data block recorded on the selected first branch blockchain in a block header of the target data block; and transmitting the target data block to other accounting nodes in the group of accounting nodes for reaching a consensus.

Method for recording data block on blockchain, leader accounting node, and storage medium

A blockchain network includes a service sub-network, a consensus sub-network, and a routing layer configured to isolate the service sub-network from the consensus sub-network. A data processing method in the blockchain network includes: receiving a data processing request transmitted by a service node in the service sub-network; performing identity verification on the service node according to the data processing request; obtaining a running load of each consensus node in the consensus sub-network when the verification succeeds; determining, from the consensus sub-network according to the running load, a target consensus node configured to process the data processing request; and forwarding the data processing request to the target consensus node, and performing corresponding data processing on the data processing request by using the target consensus node.

Data processing method and apparatus in blockchain network, storage medium, and computer device

A method for replacing an identity certificate in a blockchain network includes a service subnet, a consensus subnet, and a routing layer used for isolating the service subnet from the consensus subnet. The method includes: receiving a root certificate replacement notification transmitted by a certificate authentication center; obtaining a public key corresponding to the certificate authentication center; verifying the root certificate replacement notification by using the obtained public key; forwarding the root certificate replacement notification to a consensus node in the consensus subnet after the validation succeeds, so that the consensus node records the root certificate replacement notification into a latest data block after a consensus on the root certificate replacement notification is reached; and requesting, when the data block is received, the certificate authentication center to replace an identity certificate. A new identity certificate obtained through requesting is authenticated with a new root certificate of the certificate authentication center.

Certificate in blockchain network, storage medium, and computer device

A data backup method includes querying a first block of a first blockchain for unused transaction output information based on a first condition being met, the first block including each block of all blocks included in the first blockchain; generating transaction information according to the unused transaction output information obtained based on the querying, the transaction information indicating a transaction operation based on an account address to which the unused transaction output information belongs; recording the transaction information in a second block and releasing the second block, and recording the second block on which a consensus is reached on a second blockchain; and backing up the first blockchain into a storage system, and deleting the first blockchain. Counterpart apparatus, terminal, server, and/or non-transitory computer-readable medium are also contemplated.

Data backup method, storage medium, and computing device

A method for processing account information in a block chain is provided. A computer device receives identity information and a transfer request, the transfer request requesting to transfer a resource in an account to a target account, the target account being generated by a certificate center. The computer device obtains owner information of the account from the certificate center according to the transfer request. The computer device compares the identity information and the owner information. The computer device transmits an authentication request to the block chain in response to determining that the identity information and the owner information are consistent, the authentication request requesting the block chain to transfer the resource in the account to the target account.

Method and apparatus for processing account information in block chain, storage medium, and electronic apparatus

A data sharing method, server and storage medium including receiving a first part of a first key from a first client, the first key corresponding to encrypted data uploaded to a block of an information sharing system generating a first authorization code corresponding to the encrypted data; transmitting the first authorization code to the first client; based on receiving an access request from a second client for the encrypted data, obtaining a second authorization code and an incomplete key from the access request; based on the second authorization code being the same as the first authorization code and the second authorization code being valid, generating a second key according to the incomplete key and the first part of the first key corresponding to the encrypted data decrypting the encrypted data according to the second key to obtain the plaintext data; and transmitting, to the second client, the decrypted plaintext data.

Data sharing method, client, server, computing device, and storage medium

A method for processing an account in a blockchain is provided. A freezing instruction with respect to a target account is received by a computer device. A freezing lock is generated by the computer device based on the received freezing instruction, the freezing lock including a freezing lock public key. A first freezing request is generated by the computer device based on the freezing instruction and the freezing lock public key. The first freezing request is transmitted by the computer device to a device in the blockchain. The first freezing request is a request based on which the target account is frozen by using the freezing lock and resource transfer of the target account is denied.

Method and apparatus for processing account in blockchain, storage medium, and computer device

An electronic bill management method performed in an electronic bill management system is provided. A bill issuance request of a first user including original bill information is received. A first bill account corresponding to the first user is generated based on the original bill information, and account information of the first bill account is stored to an account table in the electronic bill management system. A second block is generated based on the bill issuance request, the first bill account, and a block header eigenvalue of a first block in a block chain in the electronic bill management system. The first block is a previous block of the second block in the block chain, and a bill issuance event of the first user is recorded based on the second block. An issuance success message is transmitted to the first user, the issuance success message including the first bill account.

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Shenzhen, China

Zong You Wang