30results about How to "Improve block production efficiency" patented technology

The invention relates to the technical field of block chains, and particularly discloses an alliance chain consensus method introducing a supervision mechanism, a block chain network and a storage medium. The method includes: running an alliance chain network through a creation node, wherein the alliance chain network comprises a supervision account and alliance chain member accounts, and the decision right of the supervision account is greater than the sum of the decision rights of the alliance chain member accounts; activating a block output node of the alliance chain member account by obtaining votes of the supervision account; when the number of the activated block output nodes reaches a preset number, transferring the block output right of the alliance chain member node to the block output nodes controlled by the alliance chain member node respectively, and enabling each activated block output node to execute the block output right according to a preset rule. The problems of resource waste and low transaction throughput of a block chain system can be solved, the problems of difficult governance of an existing public chain and the like can also be avoided, meanwhile, the flexibility of actual operation is considered, and the method has very high application value and economic benefits.

The invention relates to a DPoS consensus method and device, and the method comprises the steps: enabling a block chain node to determine a block node group from alternative block node groups througha workload proof mode, wherein the block chain node is any one alternative block outlet node in the alternative block outlet node group; enabling the blockchain node to receive a transaction request sent by a client, wherein the transaction request comprises an initiator address, a receiver address, a transaction amount, a client signature and a timestamp; the block chain node sends the transaction request to any one block outlet node in the block outlet node group; and enabling the block outlet node to receive the transaction, so that the block outlet node verifies and passes the transaction,the verified transaction is placed in a transaction pool, the block outlet node packages the transaction in the transaction pool into blocks in a DPoS consensus mode, and the blocks are linked. On the basis that the decentration degree of the block chain is not reduced, the block output efficiency of the block chain can be improved, and the method and device are suitable for various data chainingscenes.

The invention relates to a block packaging method and device for multiple channels of a blockchain, and a storage medium. The method comprises the following steps: S1, sorting and storing transactions reaching a consensus according to channels by each consensus node, and forming a system channel queue and an application channel queue corresponding to each consensus node, wherein the system channel queue stores system channel transactions, the application channel queue stores application channel transactions in application channels participated by the consensus node, and each application channel participated by the consensus node corresponds to one application channel queue; S2, for a system channel queue, when system channel transactions exist in the queue, immediately packaging the system channel transactions to generate blocks; and S3, for the application channel queue, dynamically adjusting a block packaging method according to the transaction frequency condition of the corresponding application channel, and packaging the application channel transaction based on the determined packaging method to generate a block. Compared with the prior art, data isolation based on channels is achieved, and safety and packaging efficiency are improved.

The invention provides a block chain consensus method and a computer readable storage medium. The block chain consensus method comprises the following steps: determining a plurality of consensus nodes from authorization nodes through POA election; determining a PBFT main node from the plurality of consensus nodes by using a preset priority algorithm, and taking the other consensus nodes as PBFT verification nodes; pBFT consensus operation is carried out by using the PBFT main node and the PBFT verification node; and if the consensus is reached, broadcasting a consensus result to all nodes of the block chain so as to perform account book state synchronization to form a new block. According to the scheme, the Byzantine fault-tolerant consensus mechanism of the PBFT master and slave nodes is combined with the POA consensus, and hostile attacks caused by serious centralization of the POA consensus mechanism are avoided.

The embodiment of the invention relates to a packaging method and device based on a block chain node network. The method comprises: if a first block to be packaged is larger than a first threshold value, dividing the first block into a first sub-block and at least one second sub-block; performing a first hash operation according to the first block to obtain a first hash value; signing the first hash value to obtain a first digital signature; performing a second hash operation on the first digital signature to obtain a second hash value; and selecting at least one second block output node fromthe plurality of block output nodes according to the second hash value and a preset random rule, and taking the at least one second block output node as a block output node of the at least one secondsub-block. Therefore, the block output node can assign the next block output node, the assigned process has certain randomness and verifiability, the probability that the block chain is attacked successfully can be reduced, the block output efficiency of the block chain node network is improved, and then the accounting efficiency is improved.

The embodiment of the invention provides a block chain data processing method and device, a server and a storage medium. The block chain data method comprises the steps: indicating a plurality of nodes included in a block chain network to package service data into blocks in response to received unprocessed service data; obtaining a contribution index of each node in the plurality of nodes; and determining a target node from the plurality of nodes based on the contribution index, and indicating the target node to execute a blocking operation. By adopting the embodiment of the invention, the consensus process time consumption can be reduced, and the block output efficiency is improved.

The embodiment of the invention relates to a block output method and device relating to a block chain. The method comprises: if a generated first block is larger than a first threshold value, dividing the first block into a first sub-block and at least one second sub-block; performing a first hash operation according to the first block to obtain a first hash value; determining second hash values of the plurality of outblock nodes; selecting a specified number of second hash values according to the sizes of the second hash values of the plurality of outblock nodes; performing fourth hash operation on the specified number of second hash values to obtain a fourth hash value; and according to the fourth hash value and a preset random rule, selecting at least one second block-out node from the plurality of block-out nodes as a block-out node of the at least one second sub-block. Therefore, the block-out node can assign the next block output node, the assigned process has certain randomness and verifiability, and the block output efficiency and accounting efficiency of the block chain node network are improved.

The invention relates to a DPoS consensus method and device, and the method comprises the steps: enabling a block chain node to determine a block node group from alternative block node groups througha workload proof mode, wherein the block chain node is any one alternative block outlet node in the alternative block outlet node group; enabling the blockchain node to receive a transaction request sent by a client, wherein the transaction request comprises an initiator address, a receiver address, a transaction amount, a client signature and a timestamp; the block chain node sends the transaction request to any one block outlet node in the block outlet node group; and enabling the block outlet node to receive the transaction, so that the block outlet node verifies and passes the transaction,the verified transaction is placed in a transaction pool, the block outlet node packages the transaction in the transaction pool into blocks in a DPoS consensus mode, and the blocks are linked. On the basis that the decentration degree of the block chain is not reduced, the block output efficiency of the block chain can be improved, and the method and device are suitable for various data chainingscenes.

The embodiment of the present invention relates to a packaging method and device related to blockchain. Including: generating a first block, performing a first hash operation according to the first block to obtain a first hash value; sending the first hash value to other nodes in the plurality of block producing nodes; determining The second hash values ​​of the multiple block producing nodes; according to the size of the second hash values ​​of the multiple block producing nodes, select a specified number of second hash values; for the specified number of second hash values Performing a fourth hash operation on the hash value to obtain a fourth hash value; according to the fourth hash value and preset random rules, select the second block generation node as the second block among the plurality of block generation nodes The block producer of the block. In this way, the block generation node can designate the next block generation node. The designation process has certain randomness and verifiability, which can reduce the possibility of the blockchain being successfully attacked and improve the block generation efficiency of the blockchain node network , thus improving the accounting efficiency.

The present invention discloses a multi-block output public chain consensus mechanism based on H-Algorand. Firstly, a multi-block output public chain consensus mechanism MB-Algorand is proposed. The leader of this mechanism can continuously produce blocks, thereby effectively improving Secondly, in the scenario where the public chain committee is attacked by DDOS, the H-Algorand mechanism that combines the advantages of Algorand and MB-Algorand is proposed. This mechanism takes into account the performance of both consensus efficiency and security. A simulation comparison between the ‑Algorand mechanism and the Algorand mechanism shows that the H‑Algorand mechanism can effectively improve consensus efficiency at the expense of a small amount of security under the condition that the success rate of malicious attacks is 1% to 4%.

The embodiment of the present invention relates to a packaging method and device applied to blockchain. Including: determining the first digital signature of a specified number of block producing nodes and the first digital signature of the first block producing node, and the first digital signature of each block producing node performs the first hash value through the block producing node The first hash value is obtained by performing a first hash operation on the first block; the first digital signature of the specified number of block producing nodes and the first digital signature of the first block producing node performing a second hash operation to obtain a second hash value; according to the second hash value and a preset first random rule, selecting a second block generating node among the plurality of block generating nodes as the second area The block producer node. In this way, the block producing node can designate the next block producing node. The designation process has a certain degree of randomness and verifiability, which can reduce the possibility of the blockchain being successfully attacked and improve the block production of the blockchain node network. efficiency.

The present invention discloses a block chain consensus method and device, the method comprising: a witness node receives the first block of height h; according to the parent block of the first block included in the first block Consensus information, to determine whether the local h‑1th block has reached a consensus. It solves the problem of low consensus efficiency of the existing block network. In addition, the present application also provides a block producing method and device.

The embodiment of the invention relates to a block chain-based packaging method and device. The method comprises the steps of if a generated first block is larger than a first threshold value, dividing the first block into a first sub-block and at least one second sub-block; performing a first hash operation according to the first block to obtain a first hash value; signing the first hash value toobtain a first digital signature; performing a second hash operation according to the second block to obtain a second hash value; performing a third hash operation on the first digital signature andthe second hash value to obtain a third hash value; and selecting at least one second block output node from the plurality of block output nodes according to the third hash value and a preset random rule, and taking the at least one second block output node as a block output node of the at least one second sub-block. Therefore, the block output node can assign the next block output node, the assigned process has certain randomness and verifiability, the block output efficiency of the block chain node network can be improved, and then the accounting efficiency is improved.

The embodiment of the present invention relates to a block chain-based method and device. Including: if the generated first block is greater than the first threshold, dividing the first block into a first sub-block and at least one second sub-block; determining the first digital signatures and The first digital signature of the first block producing node; performing a second hash operation on the first digital signatures of the specified number of block producing nodes and the first digital signature of the first block producing node to obtain the second Hash value; according to the second hash value and the preset first random rule, select a second block generation node among the plurality of block generation nodes as the block generation of the at least one second sub-block node. In this way, the block producing node can designate the next block producing node. The designation process has a certain degree of randomness and verifiability, which can reduce the possibility of the blockchain being successfully attacked and improve the block production of the blockchain node network. efficiency.

The invention relates to a PBFT consensus method and device, and the method comprises the steps: determining a block node group from an alternative block node group through a workload proof mode by ablock chain node, wherein the block chain node is any one alternative block outlet node in the alternative block outlet node group; enabling the blockchain node to receive a transaction request sent by a client, wherein the transaction request comprises an initiator address, a receiver address, a transaction amount, a client signature and a timestamp; enabling the block chain node to send the transaction request to any one block outlet node in the block outlet node group, wherein the block outlet node is used for sending a transaction request to the block outlet node, so that the block outletnode adopts a practical Bayer's space fault-tolerant consensus mode to verify that the transaction request is passed, and the block outlet node packages a plurality of verified transaction requests into blocks at intervals of a preset time period and links the blocks. According to the method, under the condition that decentralization is met, the block output efficiency can be improved, and the safety of the block chain is ensured.

Embodiments of the present invention relate to a blockchain-based packaging method and device. Including: if the generated first block is greater than the first threshold, dividing the first block into a first sub-block and at least one second sub-block; performing a first hash operation according to the first block obtaining a first hash value; signing the first hash value to obtain a first digital signature; performing a second hash operation according to a second block to obtain a second hash value; Perform a third hash operation on the second hash value to obtain a third hash value; according to the third hash value and preset random rules, select at least one second output node among the plurality of block output nodes The block nodes are respectively used as block producing nodes of the at least one second sub-block. In this way, the block producing node can designate the next block producing node. The designation process has a certain degree of randomness and verifiability, which can improve the block production efficiency of the blockchain node network, thereby improving the accounting efficiency.

The embodiment of the invention relates to a block outputting method and device on a block chain. The method comprises the following steps: generating a first block, and performing a first hash operation according to the first block to obtain a first hash value; sending a first hash value to other nodes in the plurality of block outputting nodes; determining first numerical values of the pluralityof block outputting nodes; selecting a specified number of first numerical values according to the sizes of the first numerical values of the plurality of block outputting nodes; performing a secondhash operation on the specified number of first numerical values to obtain a second hash value; and according to the second hash value and a preset random rule, selecting a second block outputting node from the plurality of verification nodes as a block outputting node of a second block, the second block being a next block of the first block. Therefore, the block outputting node can assign the next block outputting node, the assigned process has certain randomness and verifiability, the probability that the block chain is attacked successfully can be reduced, the block output efficiency of theblock chain node network is improved, and then the accounting efficiency is improved.

The embodiment of the invention relates to a block chain packaging method and device. The method comprises the following steps: generating a first block, and performing a first hash operation according to the first block to obtain a first hash value; sending the first hash value to other nodes in the plurality of outblock nodes; determining second hash values of the plurality of outblock nodes; selecting a specified number of second hash values according to the sizes of the second hash values of the plurality of outblock nodes; performing fourth hash operation on the specified number of second hash values to obtain a fourth hash value; and selecting a second outblock node from the plurality of outblock nodes as an outblock node of a second block according to the fourth hash value and a preset random rule. Therefore, the block output node can assign the next block output node, the assigned process has certain randomness and verifiability, the probability that the block chain is attacked successfully can be reduced, the block output efficiency of the block chain node network is improved, and then the accounting efficiency is improved.

The present invention relates to the field of blockchain algorithms, and discloses trusted hardware based on blockchain and a high-performance decentralized anonymous encryption algorithm. The hardware has a built-in intelligent mining chip, and an anonymous encryption algorithm is embedded in the intelligent mining chip. Users can use it as U disk is used; when inserted into the USB3.0 reading interface, the encryption algorithm is executed, and the device is confirmed through the chip at the same time; if the confirmation is successful, the hardware becomes a block node in the public network blockchain, waiting for the synchronization to be completed. After the block data is available, the election calculation is carried out; when the smart mining chip is successfully elected as a miner, it has the power to package the block; the smart mining chip and the encryption algorithm adopt a consensus mechanism to ensure the protection of the identity of the current miner and the next miner. Make miners anonymous in the entire blockchain network. The hardware and algorithm of the present invention can solve the problem of energy consumption of computing power, the problem of uneven network computing power being attacked by the network, the problem of block energy consumption, and the problem of trusted nodes.

The embodiment of the invention relates to a packaging method and device on a block chain. The method comprises the steps that if a first block to be generated is larger than a first threshold value, dividing the first block into a first sub-block and at least one second sub-block; performing a first hash operation according to the first block to obtain a first hash value; determining a first numerical value of the plurality of outblock nodes; selecting a specified number of first numerical values according to the sizes of the first numerical values of the plurality of outblock nodes; performing a second hash operation on the specified number of first numerical values to obtain a second hash value; and selecting at least one second block output node from the plurality of block output nodes as a block output node of the at least one second sub-block according to the second hash value and a preset random rule. Therefore, the block output node can assign the next block output node, the assigned process has certain randomness and verifiability, and the block output efficiency of the block chain node network is improved.

The embodiment of the invention relates to a block outputting method and device based on a block chain node network. The method comprises the following steps: generating a first block, and performing a first hash operation according to the first block to obtain a first hash value; signing the first hash value to obtain a first digital signature; performing a second hash operation on the second block to obtain a second hash value, wherein the second block is the next block of the first block; performing a third hash operation on the first digital signature and the second hash value to obtain a third hash value; and according to the third hash value and a preset random rule, selecting a second block outputting node from the plurality of block outputting nodes as an block outputting node of the second block. Therefore, the block outputting node can specify the next block outputting node, the specified process has certain randomness and verifiability, the probability that the block chain is attacked successfully can be reduced, the block outputting efficiency of the block chain node network is improved, and then the accounting efficiency is improved, so that the block chain node network can adapt to a service scene with a larger data scale.