11results about How to "Safe sharing" patented technology

The invention discloses a multi-mechanism attribute-based encryption algorithm based on creditworthiness consensus and zero-knowledge proof, and relates to the field of blockchains. On the basis of traditional attribute-based encryption, creditworthiness evaluation is introduced, a decentralized trust model is established for evaluating and selecting trusted nodes, and the reliability of the algorithm is improved. According to the method and the system, the data can be shared and accessed in a credible environment, zero-knowledge proof is used for verifying the correctness and integrity of the data, specific data values or other sensitive information are not leaked, and the reliability of the data is improved by combining credibility consensus and the zero-knowledge proof technology. And an innovative and efficient solution is provided for data security sharing in a multi-mechanism environment.

The invention provides a cross-domain cooperative network exception information sharing method and device, equipment and a medium, relates to the technical field of network security, and is used for solving the technical problem that in the prior art, a network exception detection method mostly depends on data in a single domain and is difficult to adapt to security requirements in a cross-domain network environment. The method comprises the following steps: constructing a trust framework based on a plurality of network domains, the trust framework being configured to enable information sharing among the plurality of network domains; unifying a data exchange protocol among the network domains in the trust framework; in response to the abnormality of at least one network domain in the plurality of network domains, performing root cause analysis on the abnormality to obtain an analysis result; and the analysis result is shared to the plurality of network domains through the trust framework, so that the plurality of network domains can respond in real time according to the analysis result.

The invention discloses an autism database sharing platform based on an ETL process, and belongs to the technical field of information technologies. The sharing platform comprises a data extraction module, a data conversion module, a data loading module, a metadata management module and an access control module. According to the method, efficient integration of multi-source data is achieved through the ETL process, the problems of data dispersion and format inconsistency are solved, metadata management and data standardization technologies are adopted, the understandability and utilization efficiency of the data are improved, the data security and privacy protection module is adopted to perform privacy protection on the data, and the data security and privacy protection efficiency is improved. A safe and reliable data sharing environment is established; the system can support and promote data communication and cooperation between researchers and professionals.

The present invention relates to an energy data upload and consensus system and method based on on-chain and off-chain collaboration, including: multiple user units, blockchain side chains and blockchain main chains; the multiple user units are connected to the blockchain main chain through corresponding blockchain side chains respectively; the user units are used for energy data collection and upload, and the generated signatures are uploaded to the blockchain side chain; the blockchain side chain is used to receive and store the signatures of each user unit, and send the homomorphic signatures calculated after aggregation to the blockchain main chain; the blockchain main chain is used to verify the homomorphic signature information transmitted by the side chain and make final records. The present invention can solve the problems of blockchain storage capacity and data credibility in the process of energy data upload.

The application discloses a security authentication method and device, network equipment, a storage medium and a program product. The method comprises the following steps: receiving a first service request sent by a distributed node SCP, wherein the first service request carries a first signature and first information, and the first information comprises a first SCU identifier and first organization information; obtaining first identity information corresponding to the first information through a block chain, and verifying the first signature based on the first identity information; if the verification of the first signature fails, sending a verification failure result to the distributed node SCP; and if the verification of the first signature succeeds, forwarding the first service request to a central node NF.

The embodiment of the invention relates to a skin disease management building system based on multi-modal medical data and a method thereof. The system comprises a data collection module, a data processing module and a federal learning module. The data collection module is used for collecting multi-modal data; the data processing module is used for generating global feature data from the multi-modal data; and the federated learning module is used for performing federated learning by using the global feature data in combination with the central server so as to obtain an auxiliary diagnosis model. According to the technical scheme provided by the embodiment of the invention, through close combination of multi-modal data integration, federal learning, real-time data processing and analysis and cross-mechanism data collaboration, a privacy-protecting, efficient and intelligent skin disease management building system is formed.

The invention relates to a text semantic communication method based on joint knowledge graph learning. The method comprises the steps that alignment of entities, relationships and entity attributes in a knowledge graph library between user sides is completed through a secure hash algorithm; unifying embedded representations of knowledge graph libraries of different user sides by utilizing a generative adversarial network; the sending user side compresses a to-be-transmitted text into semantic triples, and a similar semantic triple set is matched from a local knowledge graph library; encoding the similar semantic triad and then sending the encoded similar semantic triad to a receiving end; the receiving end decodes the received message to obtain a similar semantic triple set; utilizing a character string similarity algorithm to calculate the similarity between the similar semantic triples and a local knowledge graph library, and selecting the most similar triples as restored semantic triples; and converting the recovered semantic triad into a recovered text and recovering the to-be-transmitted text by adopting the fine-tuned semantic recovery module. According to the method and the device, the security and privacy of semantic transmission can be improved.

The invention belongs to the technical field of WEEE recovery data management, and particularly relates to a WEEE recovery data management method based on HIBE and a block chain. A block chain network is adopted to build a WEEE recovery data management platform for storing public parameters and encrypted data, a key management center is loaded on the WEEE recovery data management platform, and the key management center is responsible for generating a master key and distributing public and private key pairs by adopting an identity-based hierarchical encryption key management scheme. And the data owning party encrypts the data by using the public key of the opposite party, and the data access party decrypts the data by using the private key of the data access party. Compared with the prior art, the method has the beneficial effects that an innovative scheme based on HIBE and block chain technologies is used in the WEEE recovery system, privacy protection of data and transparency of a process are combined, efficient data sharing is realized on the premise of ensuring security, and the sharing mechanism not only promotes cooperation among all parties, but also improves the security of the system. And the efficiency of the whole recovery system is also improved.

The invention discloses a block chain-based station area information sharing system and sharing method for an electric vehicle, and realizes efficient and safe sharing of station area information based on the technical scheme of an improved Officient-HotStuff consensus protocol. Data submission and verification are carried out through DeviceChain, so that the integrity and non-tampering property of the data are ensured; access control and authority management are carried out through ShareChain, privacy of data access authority is protected by using a cryptographic method and a zero-knowledge proof technology, and security and privacy protection in a data sharing process are ensured.

The application relates to the technical field of artificial intelligence, can be applied to business system platforms such as medical health and financial technology, and discloses a data sharing method and device, computer equipment and a storage medium, wherein the privacy leakage risk of original data in an original intelligent agent is determined according to a preset dynamic privacy risk graph; the original data is risk classified according to the privacy leakage risk, the risk level of the original data is obtained, the maximum information loss threshold value that can be accepted by a target intelligent agent is reversely mapped based on the risk level, the desensitization strategy of the original data is determined according to the maximum information loss threshold value and the risk level; the original data is desensitized according to the desensitization strategy, target data is generated; the trust level of the target intelligent agent is evaluated, and it is determined whether the target data is shared to the target intelligent agent according to the trust level evaluation result and the privacy leakage risk; therefore, the application can realize efficient and safe data sharing under the premise of protecting privacy.

The present disclosure provides a network service method, node, system and computer-readable storage medium, which relate to the field of blockchain technology. The method comprises: a second node on a blockchain provides a near-domain network service for a first node on the blockchain; in response to a first service settlement request sent by the first node, the second node sends the second service settlement request to a consensus network of the blockchain for verification, so that after the second service settlement request passes the verification, service settlement between the first node and the second node is automatically realized based on a smart contract, wherein the second node does not belong to the consensus network.