41results about How to "To achieve openness and transparency" patented technology

The invention discloses a privacy protection electronic voting method and system based on a block chain. The method includes: determining voting rules, and establishing multiple voting nodes and one or more verification nodes in the block chain according to the voting rules; Generate voting keys and corresponding homomorphic encryption algorithms according to preset rules; each node of the plurality of voting nodes receives votes from voting participants, and encrypts the votes according to the voting keys, and encrypts the votes Send to the verification node; the verification node receives the encrypted votes sent by multiple voting nodes, performs voting statistics calculation according to the homomorphic encryption algorithm, and obtains the encrypted voting statistics result; according to the decryption corresponding to the voting key The key decrypts the encrypted voting statistical results to obtain the voting statistical results; the method and system realize the openness, transparency and privacy security guarantee of electronic voting by setting the key and based on homomorphic encryption and zero-knowledge proof.

The embodiment of the present invention discloses a decision-making system for the whole life cycle of construction land, which relates to the technical field of construction land investigation and restoration, including the upper layer of the system structure and the block chain, and the upper layer of the system structure includes a plurality of sampling investigation modules and a first judgment module. , the second judgment module, the simulation module, the effect evaluation module and the transfer program module, through the combination with blockchain technology, the sampling survey module is connected to the blockchain as an independent node, and the sampling survey collected after the location information review The data is released to the blockchain, so that the data can be released as soon as possible after the collection and investigation, which can effectively improve the data transparency and record reliability in the process of construction land development management, thereby improving the execution effect of construction land development management, and effectively Reduce the difficulty of traceability. The embodiment of the present invention also provides a method, device and storage medium for making decisions about the use of construction land in its entire life cycle.

The present invention provides a digital currency-based investment financing transaction method, system and device which realizes the situation of utilizing the digital currencies to provide a payment settlement path of investment financing capital allocation for a platform. The method comprises the steps of using an investor wallet application device to receive an intelligent contract; after the investor wallet application device receives a confirmation instruction containing the investment amount provided by an investor, adding the investment confirmation information in the intelligent contract, wherein the information comprises the investment amount, an investor signature and the investor personal information; after an investment platform verifies the investment confirmation information in the intelligent contract, marking that the intelligent contract comes into force; using the investor wallet application device to pay the digital currencies to a fund-raiser bank wallet account according to the executed intelligent contract.

The invention discloses an anonymous electronic election method based on block chain technology, and designs a new anonymous voting method through the combination of block chain technology and traditional encryption algorithm. As an important application innovation technology, blockchain provides a set of decentralized, safe and reliable distributed database technology solutions that require collective maintenance, which makes it have obvious advantages in solving many application problems. The present invention uses the smart contract in the Ethereum block chain to replace a credible third party, realizes the voting process through account transactions in the block chain, and uses a blind signature algorithm to protect the anonymity of voting. The entire voting process and voting The results will be recorded in the Ethereum blockchain, thus designing a new electronic voting method based on blockchain technology, which can realize the openness and transparency of voting and improve the security of voting.

The present invention provides a blockchain-based community management system. The community management system communicates with multiple smart terminals. The community management system communicates with the smart terminals in a server / client architecture, and is configured to receive and respond to signals sent by multiple smart terminals. The community management system includes a data storage module; the data storage module is configured as Store the associated data of the block chain network with the smart terminal of the community owner as the node, the block chain network includes the first block chain network storing private information and the second block chain network storing public information; the system provided by the present invention The blockchain network adopts the parallel chain mode, which protects the personal privacy information of community APP users from being leaked while realizing the openness and transparency of community management.

The invention discloses a block chain-based subjective and objective collaborative cloud service trust management method and system, using the block chain as a trust manager, under the coordinated control of the dual function mechanism of trust evaluation and trust detection, according to different needs The subjective and objective index parameters are weighted independently, and credit marks are introduced at the same time, which are constantly updated during trust testing and evaluated as an important indicator during trust evaluation; an insurance incentive mechanism is established during trust testing, starting from CSP Purchase insurance to motivate CSPs and users, and protect the rights and interests of users who have purchased insurance by punishing CSPs that violate the contract, and any operations such as trust detection and trust evaluation are open, transparent, sequential and non-tamperable, so as to realize the openness and transparency of CSP service behaviors , Traceable and anti-repudiation decentralized systematic restraint and control of subjective and objective coordination.

The present invention provides a block chain-based operation record processing method in power monitoring. The present invention combines the block chain technology to construct a block chain for the control master station and the connected substation, and generate operation for the key operation of the power system. Command records and operation result records, and the operation records are added to the blockchain, which have the characteristics of reliable transmission, data integrity, and original non-repudiation, and realize the openness, transparency, tamper-proof, and traceability of all operation records, and solve the problem of power monitoring. The security of the key operation record information of the system provides a strong support for the information security of the power monitoring system.

The disclosure provides a block chain-based scheduling method, device, device and medium, and relates to the field of computer technology, especially block chain technology. The method is applied to blockchain nodes, including: processing the traffic detection transaction request through the oracle contract to control the oracle node set outside the chain, and collecting traffic data from the network to be scheduled; obtaining the oracle through the oracle contract The traffic data fed back by the nodes; the network scheduling transaction request is processed through the oracle contract, so as to determine the scheduling plan according to the traffic data based on the scheduling strategy deployed in the blockchain, and control the oracle node to execute the scheduling plan , to send a scheduling instruction to the network to be scheduled. The above solution realizes the openness and transparency of the dispatching strategy, and improves the good trust relationship between the user and the operator.