134results about How to "Resolve trust issues" patented technology

The invention discloses a distributed e-commerce platform system based on a block chain. The system comprises a client, a relay server and block chain network full nodes. The client is connected withthe relay server and the block chain network full nodes. The relay server node is connected with the block chain network full nodes. The system further comprises a role and related parameter setting module, a business information release module, a commodity transaction module and an evaluation module. Through the system, cost and risk can be reduced, data modification can be traced, flexible ordercustomization can be realized, the profit space can be increased for sellers through intelligent pricing, and functions such as closed auction and intelligent bidding can be achieved.

The invention discloses a permission block chain privacy protection and supervision method based on group signatures. In a transaction process, whether the endorsement verification of the endorsementnode, the sequencing service of the sequencing node and the consensus process of the main node and the accounting node can only verify the legality of the identities of the two parties of the transaction, and cannot correspond the signature to the real identity of the user, so that the identity privacy of the user is guaranteed. After the transaction is completed, the supervision department can synchronize the block with other nodes through the supervision node, then open the signature contained in the transaction, and enable the signature to correspond to the real identity of the transactionuser, so as to supervise the block chain.

The invention provides a supply chain prepayment financing method based on a block chain of the internet of things. The method comprises the following steps: designing an intelligent logistics management and control system, acquiring the whole process management and control information of goods from container loading, transportation to container unloading by a sensor, and saving the sensing data to the block chain in real time as the basis of goods value preservation; and by combining with the traditional bank clearing network and block chain financial network to deposit and pay deposits, performing clearing and depositing and paying by using batch payment of the price for goods and batch right of taking delivery of goods. The invention designs a supply chain prepayment financing method based on the internet of things and the block chain technology, the issue of trust among multi-agency bodies has been effectively resolved, the invention realizes the payment problem of purchasing and selling goods and four-party silver under the heterogeneous network, the method is suitable for the safe transportation of goods of various enterprises, realizes the real-time collection and trustworthy saving of data in the transmission process, guarantees the value preservation of the goods transportation, reduces the risks of the bank, and effectively alleviates the short-term capital pressure brought by the full-amount purchase, and realizes the multi-win purpose.

The invention provides a D2D reward sharing system based on a blockchain. The system comprises a content request module, a base station, a reward payment module and a blockchain module. The content request module is used for requesting a specific content which needs to be acquired by a user. The base station searches a content provider according to the specific content requested by the content request module. The reward payment module uses a digital currency mode to carry out reward payment on the blockchain module and the content provider. The blockchain module is used to record the behaviorcondition of the content provider during a sharing process in the system. In the invention, through a reasonable excitation mechanism, the participation enthusiasm of a D2D user is increased; throughusing a blockchain technology, the historical behavior of the user can be guaranteed to be recorded and not to be tampered so that a trust problem among the users is solved; and through using a digital currency technology, transactions among the user can be realized.

The invention discloses a data preprocessing method based on a block chain intelligent contract and machine learning. Data preprocessing on nodes is completed through cooperation of a block chain technology and a machine learning technology. The method specifically comprises the steps of collecting Internet of Things data, and standardizing the Internet of Things data after storing the Internet ofThings data to local nodes; C; creating a machine learning algorithm file on the local node, wherein the machine learning algorithm file is used for preprocessing the Internet of Things data; S; storing the data into a block chain; T; training a learning algorithm by using the linked data to obtain a model coefficient, and storing the model coefficient in a local node; Firstly, a machine learningalgorithm expression is written into an intelligent contract, and then an obtained model coefficient is stored into a block chain by calling the intelligent contract; P; processing the to-be-processed data by using the linked model; A; and storing the processed data into a block chain. According to the method, a machine learning algorithm is added into an intelligent contract of a block chain, and the data mining capability of the block chain is improved by utilizing machine learning.

The invention discloses a data sharing method and device based on federal data and federal service. The method comprises the following steps: receiving a model operation demand submitted by a data user; on the basis of the federated node capability database, generating an optimal decision result through matching according to model operation requirements; selecting a calculation model based on the optimal decision result, and sending the public key and the calculation model to a corresponding federated node; receiving a calculation result returned by the corresponding federated node, wherein the calculation result is obtained by calculation, through the federated node, based on the calculation model according to the federated data of the federated node and encryption through the public key; decrypting the result and returning to the data user; calculating the data revenue of each federated node participating in calculation, and providing the data revenue to a data provider; storing the calculation process data on an accounting node of the block chain; the data provider serving as a federal node. According to the invention, decision generation of demands of each data user is realized through a federation service mechanism, so that federation of services is realized.

The invention discloses a general asset business ecosystem based on a blockchain, which comprises an integral and space asset management function module, and further comprises more than one application, a management background system, a relational database and an alliance chain which are respectively connected with the integral and space asset management function module, wherein the alliance chaincomprises more than four nodes; and the integral and space asset management function module comprises a user management module, an integral asset issuing module, an integral asset transaction module,a space asset management module and a space asset evidence storage module. According to the method, the characteristic that the blockchain cannot be tampered is utilized, and a trustworthy commercialecosystem can be established. The credits generated by the user in each partner application can be used in other partner applications. The universal asset circulation problem of partner applicationsis solved, the cooperation between the applications is enhanced, and the trust problem between franchise nodes is solved.

The invention discloses a method for establishing level trust model in an open system. According to the characteristic of trust and the characteristic of the open system, the method divides the element which effects trust into two layers, bottom layer and basic trust layer. The element comprises property, recommendation and experience. The method mainly solves the initial trust creation of a strange entity. The upper layer is a trust layer, determined by application context. The application trust layer is established on the base of the basic trust layer. The invention can be applied in open system for safety decision-making, has the advantages of extensibility and good maneuverability, etc.

The invention discloses trusted wireless storage equipment for wireless power supply and an application method thereof, and relates to the field of secure information storage. A secure chip is a root of trust of the trusted wireless storage equipment and is a core module of the trusted wireless storage equipment. The invention points out information security problem in a wireless transmission process of the wireless storage equipment and provides a new trusted wireless storage solution for the wireless power supply. Each chip in the trusted wireless storage equipment for the wireless power supply is powered in turn according to a multi-stage power supply method, so that a system can quickly switch to a normal working state, and energy consumption is reduced to the greatest extent. Reliable power guarantee is provided for the trusted wireless storage equipment for the wireless power supply by various power supply methods. A trusted storage method guarantees confidentiality and completeness of data during interaction of the trusted wireless storage equipment for the wireless power supply and a computer and the confidentiality of the data during the interaction of the trusted wireless storage equipment and the storage equipment.

The invention provides an electronic case history folder information system based on a block chain and an IPFS, and belongs to the field of medical information management, and the system comprises a registration module, an information storage module, an automatic evidence storage unit, an authorized access module, a retrieval module and an acquisition unit. According to the invention, a patient can autonomously manage own electronic medical records, including authorized access by the patient and completely eradication of access to the electronic medical records without authorization of the patient; the trust problem of the electronic medical record sharing and developing process is solved, permanent storage of the electronic medical record is achieved, tampering cannot happen, and retrieval and modification are traceable. And safe sharing of electronic medical records is ensured. And meanwhile, the storage and transmission of the electronic medical record can be safely, efficiently and quickly processed.