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82results about How to "Guaranteed to be authentic" patented technology

Warehouse receipt transaction security enhancing method in warehouse receipt system based on blockchain

The present invention discloses a warehouse receipt transaction security enhancing method in a warehouse receipt system based on the blockchain. The method comprises that: public keys and private keys capable of verifying the identity of each node are generated by using a CA certification mechanism, wherein the warehouse receipt issuance node of the warehouse receipt system is taken as the node of a sender, a warehouse receipt is generated after the completion of warehousing, and warehouse information is encrypted by using the public key of the receiver to form a ciphertext; the ciphertext is signed by using the private key of the receiver, and a transfer order is made to be sent to the node of the receiver in the form of the broadcasting; and in each process of warehouse receipt transaction, the intermediate node and the node of the receiver use the public key of the sender to verify and sign the transfer order, and if the receiver needs to use the warehouse receipt, the private key of the receiver must be used to decrypt the warehouse receipt information on the transfer order. According to the warehouse receipt transaction security enhancing method in the warehouse receipt system based on the blockchain provided by the present invention, through the double verification mechanism of CA certification, and encryption and signature, the security of the warehouse receipt transaction and the privacy of the warehouse receipt system are improved.
Owner:深圳市华深安信科技有限公司

Digital identity signing and issuing method and device based on block chain and medium

The invention discloses a digital identity signing and issuing method and device based on a block chain and a medium. The method comprises the steps of: determining a block chain platform created in advance based on a block chain framework; receiving an identity issuing request; performing hash on the identity information to obtain a first hash value; generating a random number for the identity issuing request, and hashing the random number to obtain a second hash value; generating a symmetric key, and encrypting the identity information and the random number by using the symmetric key; and obtaining the digital identity after signature is carried out through the private key of the issuing node. The digital identity encrypted by the symmetric key is stored in the block chain, so that the user can acquire the identity information anytime and anywhere, and the method is very convenient. Moreover, the symmetric key needs to be obtained through a private key of the symmetric key, thereby guaranteeing that other people cannot steal the symmetric key easily, and guaranteeing the interests of a user. In addition, because the blockchain platform is in distributed storage, data tampering ofa single node does not take effect, and the truth and credibility of data on the blockchain platform are guaranteed.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Decentralized image copyright protection system and method with infringement real-time detection

The invention relates to the technical field of copyright image protection, and provides a decentralized image copyright protection system and method with infringement real-time detection, and the method comprises the following steps of (1), enabling a registered user to upload an image through a client, and enabling an SIFT image feature extraction algorithm in the system to carry out the featuredata collection on the uploaded image; (2) extracting the invariant characteristics, such as visual angle, translation, affine, brightness, rotation, etc., of an existing copyright image by a user through an SIFT algorithm to form a local feature vector set of the image, and taking the local feature vector set as a registered image feature data set; (3) carrying out distributed storage on the feature data sets in the steps (1) and (2) by utilizing an IPFS (Internet Protocol File System), and constructing a network transmission protocol for persistent and distributed storage and file sharing;and (4) performing comparative analysis and calculation, and judging that the image does not accord with the condition of forming a new work. The system and the method provided by the invention have the characteristics of being tamper-proofing, realizing the high safety, permanent preservation and decentralization, being able to trace, being low in cost, etc.
Owner:施建锋

Subscriber and subscriber terminal equipment correlation authentication method and system

ActiveCN103684797AGuaranteed to be authenticAssociated authentication is safe and reliableUser identity/authority verificationTerminal equipmentAuthorization
The invention discloses a subscriber and subscriber terminal equipment correlation authentication method and system. The method comprises that subscriber identities are verified according to subscriber digital certificates obtained from CA; terminal equipment dynamic authorization codes are generated for subscribers after the subscriber identity verification is passed; authorization code verification is performed on subscriber terminal equipment requiring to be correlated and authenticated to be credible through the terminal equipment dynamic authorization codes; terminal equipment sends digital certificate application information to the terminal equipment for applying for terminal equipment digital certificates after the terminal equipment dynamic authorization code verification is passed and terminal equipment digital certificates are signed for the terminal equipment according to the application information. According to the method and the system subscriber main identities and a plurality of pieces of terminal equipment are correlated and authenticated for the subscriber credible terminal equipment, so that the reliability and the safety of subscriber identity and terminal equipment identity authentication are improved, and correlation authentication can be performed on the subscriber identities and the terminal equipment simultaneously.
Owner:北京天诚安信科技有限公司

Enabling blockchain agricultural product quality credible traceability system based on nondestructive detection technology

InactiveCN111429162AGuaranteed to be authenticRealize the retroactive function after the eventCommerceLogistics managementDistributed database
The invention discloses an enabling blockchain agricultural product quality credible traceability system based on a nondestructive detection technology. The system comprises five nodes including a production terminal, a logistics terminal, a sales terminal, a consumption terminal and a government supervision department. The government supervision department tracks the production terminal, the logistics terminal, the sales terminal and the consumption terminal; the production terminal, the logistics terminal, the sales terminal, the consumption terminal and the government supervision departmenttrack and trace the respective corresponding distributed databases, and database synchronization is performed among the distributed databases. According to the invention, key point control and faultmode, influence and hazard analysis methods are applied to check and analyze the front and back quality conditions of each node; the system utilizes non-destructive detection, Internet of Things, AI and other technologies for agricultural product finished products with quality problems, performs disguise and truth keeping at a production source, ensures that source information is real and credible, can quickly trace back to the source at a consumer terminal, and an agricultural product quality credible traceability system with a pre-event quality guarantee function and a post-event traceability function is achieved.
Owner:汪金小

A digital commodity trade method for guaranteeing fairness and anonymity

The invention discloses a method of realizing digital commodities trading based on computer network, in which at least five entities are involved: consumers, sellers, a digital commodities trading center, a bank of opening an account for consumers, a bank of opening an account for sellers. Before trading, the invention mainly includes: the trading center receives digital commodities of consumers and description information of the digital commodities, and publishes the description information of commodities on the Internet through its portal after checking that the commodities are in line with the description. The consumers choose the goods through the portal. The process of trading includes: after a seller receives the purchase request of a consumer, the seller sends the digital commodities to the consumer with encryption, the consumer applies for a payment token to the bank of opening account for consumers, the bank of opening account for consumers completes the payment through the payment token, and the seller sends a decryption key for the digital commodities to the consumer after confirming the payment. The method adopts the RSA asymmetric encryption method and wherein the trading center receives arbitration application and carries out the arbitration when there is a controversy.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Movable property pledge goods supervision method and system based on alliance chain

The invention discloses a movable property pledge goods supervision method and device based on alliance chain, and the method comprises the steps: enabling a first node to upload obtained pledge goodsinformation and/or early warning information to a block chain, wherein the pledge goods information comprises a pledge goods number and a monitoring equipment ID for monitoring pledge goods; after the pledge goods information and/or the early warning information are/is successfully written into account book, triggering a corresponding monitoring event, and pushing the pledge goods information and/or the early warning information to the second node; and after the second node stores the received pledge goods information and/or early warning information, checking whether the pledge goods information is complete or not, and if not, uploading missing information to the block chain. According to the method, the pledge goods information is stored through the block chain, it is guaranteed that the pledge goods information cannot be tampered and forged once being linked, and it is guaranteed that the pledge goods information inquired by financing parties, financial institutions and storage parties is consistent; the early warning information is uploaded to the block chain by adopting a mode of combining the block chain and the Internet of Things and then pushed to a financial institution,so that the authenticity, reliability and traceability of the early warning information are ensured.
Owner:南京星云数字技术有限公司

Garbage classification management method and equipment based on block chain, and medium

The invention discloses a block chain-based garbage classification management method and device, and a medium. The method comprises the steps of deploying a block chain platform based on a block chainframework; taking the garbage throwing device as a node, and deploying the garbage throwing device in a block chain platform; determining user information for executing the garbage throwing action; receiving wrong throwing information which is sent by the garbage throwing device and indicates that the user does not classify the garbage according to the garbage, and throwing the garbage into the corresponding container; and writing the wrong delivery information into a blockchain platform. Error throwing information during garbage classification is stored in the block chain platform, and datain the block chain platform is public and transparent, so that all users can inquire who does not throw garbage according to garbage classification through corresponding ways at any time, and the users can mutually supervise. Moreover, since the blockchain platform is in distributed storage, the data tampering of a single node does not take effect, and the truth and credibility of the data on theblockchain platform are ensured.
Owner:浪潮云洲工业互联网有限公司

Health authentication method and device based on blockchain and dynamic code, and medium

The invention discloses a health authentication method and device based on a block chain and a dynamic code, and a medium. The method comprises the following steps: determining a pre-created block chain platform; receiving a health authentication request sent by the user node; determining a service code corresponding to the health authentication request and/or determining an application ID corresponding to the health authentication request; generating a unique character string corresponding to the health authentication request; and generating a dynamic code corresponding to the health authentication request, and writing the dynamic code into the blockchain platform as a health code of the user node, thereby facilitating the user node to perform health authentication. Since the blockchain platform is in distributed storage, data tampering of a single node does not take effect, and authenticity and credibility of data on the blockchain platform are guaranteed. The dynamic code is writteninto the blockchain platform, and each node in the blockchain platform can trace back the dynamic code at any time. And the identity information of the user is added in the encoding process, so thatthe relationship between the dynamic code and the user is closer, and the tracing of the user node is more facilitated.
Owner:浪潮云洲工业互联网有限公司

5G positioning true value detection and attack tracing method, system and device and application

The invention belongs to the technical field of user positioning security in a mobile communication network, and discloses a 5G positioning true value detection and attack tracing method, system and device and application. The method comprises the steps of: extracting related parameters from a wireless signal sent by a user, clustering the positioning data by the data fusion center by using a clustering method, eliminating abnormal data, and realizing true value detection and credible positioning information calculation; and according to the method, utilizing historical records of positioningparameters to extract related features, completing training of a user attack detection model and a base station tracing model, in subsequent positioning, analyzing the positioning parameters of a userneeding to be detected and parameters uploaded by a positioning base station respectively, and effectively completing attack detection of a target user and attack tracing of a malicious base station.According to the invention, the real credibility of user positioning can be guaranteed, the extremely high positioning precision is achieved, interference attacks for user wireless positioning signals and internal attacks for positioning base stations can be effectively resisted, the safety of a positioning system is guaranteed, and the extremely good robustness is achieved.
Owner:XIDIAN UNIV

Automobile valuation system and method based on block chain

The invention discloses an automobile valuation system and method based on a block chain, and the method comprises the steps: firstly proposing a loyalty degree, a reward and punishment mechanism anda reputation leasing concept which are combined with a service address, a reward and punishment reputation verification excitation model and a formula analysis argumentation according to a verification economic idea and a reputation verification contract interaction relation; secondly, designing and realizing a task scheduling algorithm and a revenue distribution algorithm in a pass scene; and finally, designing and realizing application transformation of the Bancor protocol in the intelligent contract. The problems are solved by using a plurality of technologies such as a block chain, an IPFSand a database, more technical advantages are brought, and the truth and credibility of the second-hand vehicle data are ensured by using the traceability and tampering difficulty of the second-handvehicle data; the system is linked by compiling the intelligent contract, so that the system can continuously run under the condition of no operation, and the operation and maintenance cost is reduced; by redesigning the data model, the privacy of the data can be ensured, and the shareability of the data can also be ensured.
Owner:郭斌

Blockchain-based dealer supply chain finance implementation method and device, and medium

The invention discloses a blockchain-based dealer supply chain finance implementation method and device, and a medium. The method comprises the steps: determining a blockchain platform created in advance based on a blockchain framework; obtaining the production and operation condition of a dealer, and writing the production and operation condition into the blockchain platform; determining a delivery mode according to the production and operation conditions, and writing the delivery mode into the blockchain platform; determining that the dealer pays the same-period loan interest and / or paymentcorresponding to the delivery, and writing the payment information into the blockchain platform; receiving delivery information sent by the supplier, and writing the delivery information into the blockchain platform. Because the blockchain platform is in distributed storage, data tampering of a single node does not take effect, and the authenticity and credibility of the data on the blockchain platform are ensured. The goods are delivered in batches for multiple times, and financing and selling power of downstream dealers is improved; the dealer pays goods money in batches, so the purchase capability can be improved; and the bank masters the production and sales or related information of each node through the related information so as to provide a loan.
Owner:浪潮云洲工业互联网有限公司
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