A network connection method and device for a training participant of a joint training model are provided, the training participant operates in a master-worker mode. The method includes: acquiring communication state information of a worker, the communication state information indicating a communication connection phase that the worker is in; acquiring communication state information of a target worker as target communication state information, where the target worker includes a peer node corresponding to the worker, and the peer node belongs to a different training participant of the joint training model; and resetting, in response to determining that the target communication state information does not match the communication state information of the worker, a communication connection phase that the worker is in.

A network connection method and device for a training participant of a joint training model are provided, the training participant operates in a master-worker mode. The method includes: acquiring communication state information of a worker, the communication state information indicating a communication connection phase that the worker is in; acquiring communication state information of a target worker as target communication state information, where the target worker includes a peer node corresponding to the worker, and the peer node belongs to a different training participant of the joint training model; and resetting, in response to determining that the target communication state information does not match the communication state information of the worker, a communication connection phase that the worker is in.

The present disclosure relates to systems for generating network packets that facilitate reliable and secure transmission of data between computing devices. For example, systems described herein involve generating a network packet in which a transport layer and security layer are implemented within an authentication header of the network packet. Information from the authentication header may be evaluated by a receiving device using a security key to compute an integrity check vector and an initialization vector to determine that a network packet has been provided in a correct order as well as check against a variety of security threats.

Systems and techniques are described for situational token-associated media output. A system receives sensor data captured by at least one sensor of a media device. The system identifies, based on the sensor data, a relationship between the media device and an anchor element that is associated with a token. The system identifies the token in a payload of at least one block of a distributed ledger. The token corresponds to media content according to the distributed ledger. The system generates a representation of the media content corresponding to the token. In response to identifying the relationship between the media device and the anchor element, the system outputs the representation of the media content.

Embodiments of the present disclosure relate to a service flow system and a service data processing method and apparatus. The system can include a management server, a distributed storage cluster and a block chain alliance network connected by a network, the block chain alliance network including a consensus node and at least one participant node. Through unified management of a management server, off-chain data is stored in a distributed storage cluster, then participants of each phase are defined for different projects, and the participants of the same phase of the same project share the same on-chain and off-chain data. Therefore, credible access of the participants to block chain data is solved, dynamic customizable phase management of the projects in a service flow is supported, the on-chain data and participants of each phase are strictly divided and managed, and associated management of on-chain and off-chain service flow data is also supported.

A method for blockchain full sharding based on a P2P storage network and a multi-layer architecture is provided. The entire network blockchain nodes are divided into a shard chain, a relay chain and a beacon chain by means of network sharding, that is, shard cross-chain communication is realized by using a beacon-relay-shard three-layer architecture or an architecture with more than three layers, so that the network requirement of the nodes has a linear relationship with the total number of TPS of the network. A transaction is divided into a W primitive and a D primitive. The D primitives are grouped and hash values corresponding to the D primitives are calculated: the W primitive is executed on an initiator's shard, the D primitive is stored in the P2P storage network, and the hash value corresponding to the primitive is communicated across the chain, and finally executed on a receiver's shard.

A set of transaction handling computing elements comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein an Unspent Transaction Output (UTXO) data structure supporting the immutable chain of data blocks is an output from a finalized transaction. Typically, the UTXO data structure consists essentially of an address and a value. In this approach, at least one UTXO data structure is configured to include information either in addition to or in lieu of the address and value, thereby defining a Transaction Output (TXO). A TXO may have a variety of types, and one type includes an attribute that encodes data. In response to receipt of a request to process a transaction, the set of transaction handling computing elements are executed to process the transaction into a block using at least the information in the TXO.

A human-cyber-physical resource-oriented adaptive construction method and apparatus for a structured peer-to-peer (P2P) network are provided. The structured P2P network is a point-to-point network with physical perception information and can be effectively used in a human-cyber-physical fusion scenario. The method includes: using a grid aggregation algorithm to calculate the latitude and longitude coordinates of a new node to acquire a position hash value of the new node; determining, according to the position hash value, a registration node of the new node from the existing nodes of the structured P2P network; and completing, according to the information returned by the registration node to the new node, registration of the new node, thereby resulting adding of the registered new node into the structured P2P network.

A human-cyber-physical resource-oriented adaptive construction method and apparatus for a structured peer-to-peer (P2P) network are provided. The structured P2P network is a point-to-point network with physical perception information and can be effectively used in a human-cyber-physical fusion scenario. The method includes: using a grid aggregation algorithm to calculate the latitude and longitude coordinates of a new node to acquire a position hash value of the new node; determining, according to the position hash value, a registration node of the new node from the existing nodes of the structured P2P network; and completing, according to the information returned by the registration node to the new node, registration of the new node, thereby resulting adding of the registered new node into the structured P2P network.

A method for a connection mechanism in a public cloud network is disclosed. The method includes acquiring a plurality of connection credentials from a public cloud portal (PCP) Admin Device; pairing and registration with a private cloud virtual private network (VPN) server (PCVS) from a private matter gateway (PMG); establishing a plurality of initial VPN tunnels between the PCVS and the PMG; connecting to the PMG on demand between a PCVS smart device client and the PMG through the PCVS; and running a plurality of vertical peer-to-peer (P2P) private and secure PCVS smart device client applications between at least one PCVS smart device client and one of at least one PMG smart device client, at least one PMG network service and another PCVS smart device client.