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

The invention discloses a consortium chain-based digital bill trading system construction method, which develops a brand-new bill display form, namely, a digital bill in combination with existing bill attributes, laws and regulations and market by taking a consortium chain as technical support. Compared with an existing electronic bill, the digital bill is totally different from the electronic bill in technical framework, not only has all functions and advantages of the electronic bill but also fuses the advantages of a block chain technology, and is a securer, more intelligent, more convenient and more promising bill form. In addition, the block chain technology is applied to the field of bill businesses for the first time; a unified standard bill trading platform is established; the problems of trade background forgery, bill authenticity authentication failure, paper bill multi-time selling, non-synchronous electronic bill discounting and bill endorsing, and the like are solved; and various risks are effectively managed, controlled and prevented.

The invention provides a customer data management system based on a block chain. Participants are connected to a financial union chain through a corresponding block link-in node, so as to realize theuplink of customer data, and realize the inquiry, addition, modification and synchronization of customer data according to the customer intelligent account book and the customer intelligent contract.The financial union chain designs a sectional protection lock for the customer data on the chain to realize the circulation of the customer data among the set participants; The client intelligent account book comprises a client information access authority, a newly added authority and a client information maintenance authority, wherein the client intelligent account book comprises a client information access authority, a client information access authority and a client information maintenance authority. Customer Intelligence Contract includes Customer Information Addition Service, Customer Information Maintenance Service and Customer Information Change Notification Service. The invention realizes the non-tampering, encrypted storage and privilege access of the uplink information, which canensure the privacy of the customer information and realize the cross-organization sharing of the public basic customer information on demand, such as the mobile phone number is shared between the operator and the government department, and between the operator and the bank.

The invention discloses a distributed optimization dispatching method of an interconnected micro-network based on an intelligent contract, which comprises the following steps: establishing a block chain of electric power transaction; setting the dispatching cycle, recording the electricity quantity sent and received in the dispatching cycle; the optimal dispatching model of interconnected micro-grid system being established and solved, and the optimal dispatching scheme being obtained. According to the optimal dispatching scheme, the transaction contents of the micro-grid involved in the transaction are determined, and the smart contract is signed and sent to other micro-grids in the network. The microgrid to reach consensus; verify the transaction, judge whether the transaction is safe ornot, cancel the transaction if it is not safe, complete the transaction if it is safe, and transfer funds between microgrids. The invention provides a distributed optimal dispatching model and a distributed iterative algorithm of an interconnected micro-grid system, and applies a block chain to the recording and value transfer of the distributed transaction, and signs an intelligent contract between the micro-grids, thereby solving the trust problem between the transaction parties and achieving high automation degree.

The invention relates to a bulk commodity transaction data processing system and data processing method, and belongs to the field of electronic commerce. The system comprises a transaction server which can be logged in by a buyer and a seller. The system is characterized in that the transaction server is at least provided with an order processing unit, a security deposit processing unit, a goods payment processing unit, a goods receipt confirmation unit, and a master control unit. The method comprises the steps that pending an order is conducted; ordering is conducted; paying the security deposit is conducted; earnest money is paid by the buyer; full payment is paid; the buyer confirms that the goods are received; the goods payment is transferred to the account of the seller; the security deposit is returned. According to the bulk commodity transaction data processing system and data processing method, the goods payment is not paid to a third-party transaction platform, but paid to a payment channel of a bank, the bulk commodity transaction data processing system and data processing method are especially suitable for online transactions between enterprises, and the phenomenon that taxes are paid for two times is avoided simultaneously.

The invention belongs to the technical field of data security, particularly relates to a credible advertisement data management system based on a block chain, and solves the problems that the data reliability is low, the data is not public and transparent enough, the data can be manually operated and is easily tampered, the privacy protection is difficult, and the data security is difficult to guarantee. According to the invention, the block chain technology is applied to the media industry, the big data technology is combined, identity management and authorization and user identity bidirectional authentication are carried out on an advertiser and a media company based on the credible alliance chain, advertisement data are linked, and user data are transacted and analyzed. A safe and reliable advertisement data management method is provided for media companies, advertisers and consumers.

The invention discloses an establishing method of an electronic wallet based on a block chain. The method comprises steps of 1) establishing a new transaction and issuing various types of assets; 2) carrying out the transaction and broadcasting transaction lists to the whole network through a P2 network; 3) carrying out transaction verification; 4) verifying results and broadcasting transaction results to the whole network after the transaction is finished; and 5) writing the transaction results into a block of a block chain. According to the invention, by use of the distributed account book technology, the digital asset flows and real cash payment on the block chain are connected, so in the global Internet market, the function of high-efficiency and low cost value delivery that the traditional financial mechanism cannot replace can be developed; a block chain credit system from the information to the value network is formed; the cryptography packet of each person can be developed into a 'self-finance' platform; and payment, depositing, transferring, exchange, loans and the bookkeeping and clearing in the whole network of the P2P can be achieved.

The invention provides an Internet of Vehicles privacy protection trust model based on a block chain. Vehicles on the road generate and broadcast messages through the vehicle-mounted ad hoc network toshare surrounding traffic information so as to improve the traffic efficiency and safety. However, due to the untrusted network environment of the vehicle-mounted ad hoc network, the privacy of the vehicle is easy to expose, and whether the received message is reliable cannot be judged. The message is anonymously sent by the vehicle through the ring signature technology, so that the vehicle is prevented from being tracked by a malicious vehicle. Messages sent by the vehicle are evaluated and screened through a reputation evaluation mechanism based on the block chain technology, and forged information in the messages is filtered. Based on the characteristics of the block chain, it is guaranteed that the vehicle reputation is not maliciously tampered, real-time synchronous updating of the vehicle reputation is achieved, and the safety and usability of the vehicle-mounted ad hoc network are further improved.

The invention discloses a safe data backup method, a client side and a cloud server side based on an alliance chain. On the client side, the method comprises the steps that a target document to be backed up is packaged, compressed, encrypted and partitioned; the target document is backed up; after backing up of the document, metadata of the target document and a Merkle tree of the target document used for auditing are added into a partition block; and the partition block is sent to the cloud server side, so the cloud server side can add the partition block to a partition block chain backup cloud based on the alliance chain. On the cloud server side, the method comprises the steps that the partition block chain backup cloud based on the alliance chain is established; the partition block sent by the client side is received, wherein the partition block comprises the metadata of the target document and the Merkle tree of the target document used for the auditing; and the partition block is added to the partition block chain backup cloud based on the alliance chain. According to the invention, resource sharing is achieved, and expenditures of conventional remote backup are saved.

The invention provides a safe data sharing method in a cloud environment. The safe data sharing method is provided in allusion to a problem of encrypted data access control in the cloud storage environment by combining CP-ABE (ciphertext-policy attribute-based encryption). According to the method, a problem of trusted third party dependency in a CP-ABE algorithm is solved through combining a symmetric key of a cloud storage center and a asymmetric private key of an authorized agency; secondly, user unique identification is added to an attribute private key of a user so as to enable a sharing mechanism to resist collusion attacks from illegal users; and finally, revocation of the user is completed through updating the symmetric key, the backward security of shared data is ensured, and the updating efficiency is improved.

The invention discloses a V2G transaction privacy protection method, device and system based on a block chain. The method comprises the steps: enabling a block chain node to receive a transaction parameter anonymously transmitted by a buyer client, and recording the transaction parameter and a first zero-knowledge proof generated by the buyer client on the block chain in a form of an intelligent contract; the blockchain node verifies the correctness of the first zero-knowledge proof, and records the transaction parameters passing the verification on the blockchain; the block chain node receives guarantee expenses anonymously sent by the buyer client, and records the guarantee expenses passing the verification on the block chain; the blockchain node receives a payment voucher for settlementanonymously sent by the seller client, and records the payment voucher passing the verification on a blockchain; converting the payment voucher into a corresponding amount of funds based on the intelligent contract of the blockchain; the fund of the corresponding amount is sent to the seller client; and sending the guarantee fee to the buyer client.

The invention discloses a data transaction system and method based on smart contract technology of a blockchain. The system comprises a data selling end, a data purchasing end and a service node, thedata purchasing end pays corresponding digital assets to a smart contract running in a blockchain, stores a digital assets in the intelligent contract, and sends a loaning request to the smart contract after receiving the data file; and the smart contract sends the digital assets to the data selling end. The data transaction system based on the smart contract technology of the blockchain and the method thereof provided by the invention are realized by the smart contract on the blockchain, all digital assets in the transaction process are hosted in the smart contract on the blockchain, the assets are public, transparent and viewable, the digital assets are hosted in the smart contract, the problem of centralized trust does not exist, and the security of the data transaction system is improved. The transfer-in and transfer-out records of the digital assets in the smart contract are all recorded on the blockchain, can be checked publicly and cannot be modified, so that the trust problem of two transaction parties is solved.

The invention discloses a seal management system and method. The system comprises a seal and a management device; the management device comprises a main controller, an image acquisition module, a communication module, an SIM card and a power module; the seal comprises a handle, a connector, a seal head and a shell. The method comprises an initial setting process, a seal application monitoring process and an illegal seal unpacking warning process. The seal management system effectively avoids the disadvantages of man-run management phenomena, and is integrated with techniques such as machinery, electronics and communications so that a manager and a user can be located more clearly; in the process when the user applies the seal, two photos of the user and the application action are sent to the cellphone of the manager so that the manager can get the actual seal application condition in time; as a result, the problem of trust between the user and the manager is avoided, the management efficiency is effectively improved and the safety of seal application is guaranteed.

The invention discloses a secure and credible data multi-party computation implementation mode under the condition that a plurality of participants exist. By adopting the computing system provided bythe invention, a provider of the original data can clearly know which objects acquires the provided original data , in what way the provided original data is acquired, and whether unauthorized use orpropagation exists in an analysis process and an analysis result of the original data or not; and a data demander can also ensure the accuracy and authenticity of the original data and the data calculation result. According to the computing system, the original data needing to be protected and the computing program are placed in a specified trusted execution environment for data sharing, and underthe condition that multi-party data computing and privacy protection requirements exist, the technical scheme can well solve the safety problem concerned by all parties in the multi-party data computing problem.

The invention belongs to the technical field of cloud computing, and particularly relates to a cloud computing cross-domain identity authentication method, which comprises the following participants:(1) a cloud service provider group member CSP provides various cloud services for a user in a cloud environment, and verifies the identity of the user; (2) the user group member US accesses the cloudservice to complete a cross-domain identity authentication process of a cloud service provider; (3) the group administrator GM is responsible for joining group members and opening signatures so as totrack group member information; and (4) the group center GC initializes system parameters and issues a group member certificate, and the group administrator also participates in the group member certificate issuing process and simultaneously exposes group member identity responsibility. According to the method, identity authentication between the user and the cloud service provider under differenttrust domains is realized by utilizing the security of the group signature and the validity verification of the message, so that the user identity anonymity is ensured, and meanwhile, the user identity traceability is realized, and the cloud computing has higher security.

The invention relates to an H5 non-login user session tracking method. the method comprises: a server adopting a two-layer architecture design; the server generating an entry link address for creatinga user session; wherein the address is an entrance of all subsequent H5 services; a request for accessing the address needing to be authenticated by the server; after the user session is successfullycreated, the server issuing a one-time token to the client; wherein the token is used for user identity confirmation in the subsequent request process, sending the token to the server side along withthe user request, the token being immediately invalid after the server side passes the verification, and then the server side creating a new token and issuing the new token to the user for the next request to confirm the identity of the user. Compared with the prior art, effective user login can be realized in a scene that a client browser cannot provide user password input or other identity authentication capabilities, the illegal request interception rate of malicious attackers can be improved, and the development cost and the maintenance cost are reduced.

The invention discloses a blockchain consensus method and a device. The method comprises the steps of determining a witness node; distributing a global key to each witness node based on a quantum keydistribution network; and selecting a node satisfying a preset condition from the witness nodes as an accounting node by using the global key and the transaction data. Due to the fact that all witnessnodes share the global secret key, the nodes meeting the preset conditions are selected through the global secret key, namely the accounting nodes are obtained through selection of the quantum lottery ticket mechanism, the trust problem of the witness nodes and the problem of fair selection of the accounting nodes in the witness nodes are solved on the basis of use of the quantum secret key.

The invention relates to a traceability method of power battery cascade utilization based on block chain technology and a system thereof. The method comprises the following steps: packaging the powerbattery information of the first shipment into a head block and adding the head block into the block chain, and broadcasting nationwide, wherein the power battery information comprises one or more ofa factory number, an information ID, a cell material, a nominal capacity, a nominal voltage, a charging cut-off voltage, a discharging cut-off voltage, a standard current, a maximum charging current,a maximum discharging current, a DC internal resistance, an operating temperature, a cell size, a weight, a number of cycles and a healthy state of the battery; when the power battery is traded, packaging the trading information of the power battery into a first trading block for broadcasting throughout the network, wherein all nodes in the network can verify its legitimacy and effectiveness, andthen adding the block into the block chain by a consensus mechanism. The invention realizes the functions of uploading, storing, inquiring, encrypting and decrypting the data of the whole battery supply chain, and the data is open, transparent, traceable and non-alterable.

The present invention relates to the field of electronic commerce, and provides a reliable product transaction system realization method and realization system, and establishes a user-based user relationship system based on trusted acquaintances in the real society to control product transactions or product promotion levels, without restrictions Products with trustworthy qualifications continue to trade, restrict products that do not have trustworthy qualifications from continuing to recommend, prevent products from being traded or advertised at the level of untrustworthy users, and check products at all levels through trusted acquaintances in the real society, and trade products Or product promotion is always controlled within the trustworthy range, effectively solving the trust problem, so that users can shop online with confidence; and because users in the trusted user level are acquaintances in the real world, it is easy to form a community of interests, and the system can explore the community of interests. Allow users within the trusted hierarchy to benefit.

The invention discloses a user privacy protection crowd sensing system based on a block chain, and the system is characterized in that a first mobile terminal issues a task to a main block chain, andthe main block chain consists of a first mobile terminal and a second mobile terminal; according to a second mobile terminal participating in the task, a plurality of sub-block chains are created according to a preset creation rule; a second mobile terminal located in the sub-blockchain collects data according to the task and encrypts the data, and the second mobile terminal uploads the data to apreset data packet according to a preset random sequence list; and one of the second mobile terminals uploads the data packet to the main block chain. By adopting the method and the device, on the premise that the user can accurately upload the data, the data cannot be matched with the corresponding user, so that the privacy of the user is protected.

The invention provides a bill discount transaction matching method based on a block chain. The bill business acceptor converts the bill discount application information into bill discount demand information and publishes it to the block chain platform. Participants obtain bill discount demand information from the block chain platform and form demand response information; The participant encrypts the demand response information and sends it to the block chain platform. The acceptor obtains the encrypted demand response information from the block chain platform, decrypts it and selects the counterparty among the participants; The acceptor encrypts the selection result information of each participant and sends it to the block chain platform, and initiates the bill discount service to the counterparty. After obtaining the encrypted selection result information, the participant is decrypted, and the participant selected as the counterparty starts the processing of bill discount business. The invention fully utilizes the characteristics of decentralization and non-tampering of the block chain technology, solves the trust problem in bill discount transaction, establishes a credible bill transaction shared account book, and effectively prevents bill market risks.