Alipay (hangzhou) Information Technology Co., Ltd.

Alibaba Group Holding Limited

Advanced New Technologies Co., Ltd.

Ant Blockchain Technology (shanghai) Co., Ltd.

Alipay Information Technology Co., Ltd.

Lingtao Kong

Guannan Kou

Chao Zeng

Hongquan Zhang

Lei Zhang

He Sun

Jiang Wang

Ke Cheng Liu

Han Xiao

Rungui Ye

Liman Hou

Youpeng Xie

Ke Zeng

Wenxiang Jin

Yifan Chen

Ke Liu

A method and an apparatus for implementing secure multicast in a blockchain network. The method includes: a first blockchain node generates and sends a security group creation message including a security group information structure corresponding to each target blockchain node to be added to a multicast security group, each security group information structure including a public key of a corresponding target blockchain node and ciphertext security group information obtained by encrypting plaintext security group information by using the public key, the plaintext security group information including a security group session key; and a second blockchain node searches, after receiving the security group creation message, the security group creation message for a security group information structure that includes a public key of the second blockchain node, and decrypts ciphertext security group information in the identified security group information structure to obtain the security group session key.

Method and apparatus for implementing secure multicast in blockchain network

The present specification discloses a data processing method, apparatus, medium and device. The method includes: receiving a QUIC data packet that is sent by a first device and that includes a CID; parsing the CID and determining a routing address based on a parsing result; and routing the received QUIC data packet to a second device based on the routing address, so the second device processes the QUIC data packet. When a data packet sent by a transmitting end device is received, a routing address of data transmission is determined by processing the received data packet, to quickly establish a data transmission channel between the transmitting end device and a receiving end device. As such, stored context information is not required, and connection errors caused by exceptions such as restarting and scaling in/out on a load balancer will not occur, thereby effectively improving processing efficiency of data transmission by using the QUIC protocol.

Data processing method, apparatus, medium and device

Methods, systems, and apparatus for optimizing communication in a blockchain network. An example method includes establishing, by a first relay node in the blockchain network, a connection with a first blockchain node in the blockchain network in response to a connection request of the first blockchain node; receiving, by the first relay node, a registration request transmitted by the first blockchain node; generating, by the first relay node, a registration event based on the registration request; updating, by the first relay node, a local routing table based on the registration event; and forwarding, by the first relay node, a message of the first blockchain node to another relay node or another blockchain node in the blockchain network that is connected to the first relay node based on the local routing table.

Communication optimization systems of blockchain network, registration methods and message forwarding methods

A computer-implemented data transmission method includes: receiving, by a data transmission system, a data processing request sent by a first client deployed in a first region, in which the data processing request is encapsulated using a first data transmission protocol; converting an encapsulation protocol of the data processing request from the first data transmission protocol to a second data transmission protocol, to obtain a converted data processing request; transmitting the converted data processing request using a data transmission channel of the data transmission system, in which the data transmission channel supports the second data transmission protocol; at an output end of the data transmission channel, converting the encapsulation protocol of the converted data processing request from the second data transmission protocol to the first data transmission protocol, to obtain the data processing request; and transmitting the data processing request to a second client deployed in a second region.

Data encapsulation conversion and transmission

Growing community of inventors

Hangzhou, China

Lingtao Kong