1538 results about "Secure communication" patented technology

A federated distributed computational system enables secure oncological therapy optimization through robotic integration. The system establishes a distributed graph architecture with secure communication channels connecting computational nodes, implementing encryption protocols for cross-institutional data exchange. Each node contains processing capabilities for fluorescence-guided imaging, uncertainty quantification, and expert knowledge integration while maintaining hierarchical knowledge graphs of oncological biomarkers, interventions, and outcomes. The system coordinates domain-specific knowledge through token-space communication and implements an advanced robotic integration system for surgical interventions using spatiotemporal tumor mapping, multi-modal fluorescence imaging, surgical robot coordination, and space-time stabilized mesh management. Key capabilities include wavelength-specific multi-modal fluorescence detection, combined epistemic and aleatoric uncertainty estimation, tensor-based data integration with adaptive dimensionality control, and light cone search for adaptive treatment optimization—all while maintaining strict privacy controls.

A data-driven dynamic energy management system for the adaptive coordination of renewable and conventional energy sources, consisting of: a processing unit configured to perform real-time calculations to optimize the generation, storage, and distribution of electrical energy by continuously analyzing operational data, forecasting future energy demand, and generating control instructions to match available generation resources with forecasted consumption demand; a storage unit connected to the processing unit, configured to store records of historical energy production and consumption, environmental data, operating thresholds and learned model parameters, and to provide said data as input for the forecasting and optimization routines performed by the processing unit; a multitude of IoT-based monitoring units, each comprising at least one sensor configured to measure instantaneous parameters of generation, storage level, consumption rate and environmental conditions, with each monitoring unit being configured to periodically transmit measurement packets to the processing unit via a secure communication network; a forecasting unit implemented in the processing unit, configured to process historical and real-time data to create forecast curves for demand and generation using statistical and probabilistic forecasting techniques, and to dynamically update the weights of the forecasting model in response to observed deviations between forecasted and actual output; an optimization control unit implemented in the processing unit and configured to evaluate the outputs of the forecasting unit together with current operational data to determine a set of optimized control variables representing the target generation contribution of each energy source, and to pass these targets to a lower-level controller for execution; a controller that is communicatively connected to the processing unit and the multiple energy generation sources and is configured to regulate the operation of each source by adjusting the activation state, output level and operating priority based on the control signals received from the processing unit; an energy storage management unit comprising at least one battery array and a power conditioning circuit, configured to receive control instructions from the processing unit, store excess generated energy, release stored energy when forecasted demand exceeds available generation, and report charging and discharging characteristics in real time to the processing unit for continuous recalibration; an alarm and notification control unit connected to the processing unit, configured to continuously compare storage levels and generation reserves with stored operating thresholds, trigger predefined responses when critical or abnormal conditions are detected, and transmit acoustic, visual, and digital remote alerts to designated operators; a user interface terminal connected to the processing unit, configured to display real-time generation statistics, demand forecasts, energy storage status, and system alerts, and to accept operator-defined parameter inputs that are transmitted to the processing unit for recalibration of forecast or optimization parameters; and a secure server interface configured to synchronize operational logs, learning data, and performance indicators with a remote monitoring or analysis server for centralized monitoring, long-term data analysis, and distributed decision support.

The invention belongs to the field of network security, and relates to a trusted management and control network platform construction method and device, electronic equipment and a storage medium, the method comprises the following steps: constructing a basic security architecture and a trusted base, the basic security architecture being used for providing a unified root of trust and a management core for collaborative operation of upper security components; based on the basic security architecture and the trusted base, implementing multi-dimensional trusted verification and dynamic access control; an intelligent boundary protection and depth detection system is deployed and is used for constructing an intelligent, three-dimensional and self-adaptive security defense line at the boundary of each region of the network, and various known and unknown threats can be identified and blocked; constructing a unified secure communication tunnel and a cross-domain transmission guarantee; defining and realizing a standardized security function interface and a collaboration protocol; and a continuous trust evaluation and automatic operation management and control closed loop is established. The overall security is enhanced, the secure transmission of data is ensured, the compatibility and collaboration of the system are improved, and the security operation intelligence is realized.

The invention provides an unmanned aerial vehicle cluster task collaboration method based on a block chain, and the method comprises the steps: firstly starting a first unmanned aerial vehicle, initializing an airspace network, and achieving a dynamic ad hoc network; wherein each unmanned aerial vehicle is granted with a digital certificate containing identity information and basic authority before task execution, and the validity of the certificate is verified in real time through an intelligent contract; performing situation synchronization on the unmanned aerial vehicle cluster by adopting a lightweight block chain technology; finally, in the task execution process, the unmanned aerial vehicle group automatically completes task allocation and decision making based on the intelligent contract, and meanwhile, the hash value of the key state data is subjected to uplink evidence storage; and after the task is completed, reading data analysis of the fixed evidence on the chain and generating a visual report. According to the invention, the problems of single-point failure, expansibility bottleneck, security threat and the like existing in a traditional centralized control architecture are solved, autonomous coordination, secure communication and credible evidence storage of the unmanned aerial vehicle cluster in a complex environment are realized, and the reliability, efficiency and security of task execution are greatly improved.

The invention relates to a secure communication method for an edge node and terminal equipment based on dynamic key negotiation. The method comprises the following steps: the terminal equipment sends an initial signal when initiating a communication request; the edge node generates a scenarized first key negotiation parameter and feeds back the scenarized first key negotiation parameter after passing dual identity and state verification; after the terminal device decrypts the parameter, a dynamic entropy value is collected by combining a network adaptive sensor, and a second key negotiation parameter associated with the first parameter feature is generated; the two parties calculate session keys based on an ECDH algorithm, and the consistency of the keys is ensured through dynamic entropy verification and Hash comparison; and after the key negotiation succeeds, entering a hierarchical encrypted data transmission stage, and dynamically updating a session key based on a multi-dimensional trigger mechanism. According to the method, through hardware credibility verification, a scenarized key strategy, dynamic entropy enhancement and national secret algorithm adaptation, dynamic management of keys and adaptive matching of terminal resources are achieved, attacks such as equipment counterfeiting and parameter tampering are effectively resisted, and the high-security and compliance requirements in the fields of industrial control and the like are met.

The invention discloses a bulk cargo supply chain data transmission method and system based on an intelligent transportation box, and relates to the technical field of logistics data transmission, and the method comprises the steps: collecting multi-modal sensing data in real time through a multi-source data collection interface of the intelligent transportation box; the intelligent transportation box edge calculation module performs cleaning, compression aggregation and key event intelligent identification on the data; a transmission strategy is adaptively selected according to the data type and the network state, a key event alarm message is immediately sent, data are locally cached when the network is interrupted, and subsequent transmission is recovered; transmitting the data to a cloud by adopting a secure communication protocol; the cloud receives management data and provides remote configuration, alarm notification and data visualization functions, the system comprises an intelligent transportation box terminal unit and a cloud service platform unit, data transmission reliability and efficiency are improved, bandwidth and cloud cost are reduced, cargo transportation safety is guaranteed, and the system is suitable for bulk cargo cross-regional transportation scenes.

The invention discloses a data exchange system for performing real-time secure communication with an intranet system, and relates to the technical field of network data security. The system comprises a network environment identification module, a challenge authentication module, a hardware key binding module, a data communication module, an abnormal response module, a strategy updating module and a visual monitoring and log module. According to the invention, by introducing the trust map evaluation module, map modeling is carried out on the characteristics of the equipment in the historical operation process, the rationality of the current operation environment of the system is judged based on the map coincidence evaluation result, the communication module is allowed to operate only when the evaluation result meets the condition, and a judgment mechanism based on the historical trusted behavior is formed; and the prevention and control capability of the system on gradual-change attacks and behavior counterfeit is enhanced.

A dynamic real estate valuation system based on multiparametric market indicators, which includes the following: a valuation engine configured to generate real-time results for property valuation; a multitude of distributed data ingestion and processing units configured to capture heterogeneous data sources, including historical property transaction data, real-time property listings, zoning and land use records, macroeconomic indicators, geospatial data, environmental sensor outputs, and sentiment-derived metrics; a model orchestration control unit comprising a stack of machine learning models, wherein the models include at least a gradient boosting decision tree model, a long-short-term memory (LSTM) time series forecaster, and an enhancement learning module that iteratively optimizes the model parameters based on the observed evaluation accuracy; a data contextualization controller configured to apply dynamic weighting to each input parameter based on the geographic, temporal, and market context by executing decay functions and location-specific rule matrices; a physical property valuation terminal (PVT) that includes an edge processing unit (EPU), geolocation circuitry, secure communication interfaces and a touch-based user interface; a valuation book subsystem configured to hash the valuation output, timestamp, and signatures of the input record into a blockchain-based distributed ledger; wherein the system is designed to continuously recalibrate its valuation results by comparing the predicted valuations with the actual sales or rental prices, and wherein the physical terminal is designed to produce a legally certifiable valuation document with embedded provenance data.

The invention relates to the technical field of Bluetooth communication, and discloses an optimization method for secure communication of Bluetooth chip equipment. The method comprises the following steps: identifying a device type identifier and a protocol version feature, extracting a hardware capability parameter and generating an initial security policy set; collecting channel data, and calculating a stability index and a dynamic noise baseline; then, screening and sorting security policies to generate an execution queue, adjusting an encryption strength threshold according to a noise baseline to perform iterative optimization, and outputting final policy configuration; and when the target Bluetooth chip establishes the communication connection, loading the final security policy configuration and monitoring the channel state in real time, and triggering a policy dynamic switching mechanism when the channel state change exceeds the preset tolerance so as to optimize the security communication effect of the Bluetooth chip equipment. According to the method, the security policy can be accurately matched with the device and the channel state, the policy is dynamically adjusted, and the security and the stability of communication of the Bluetooth chip device are effectively improved.

The invention discloses a detection method and system for a phishing mail, and relates to the technical field of mail security communication. The detection method for the phishing mail comprises the following steps of dual-stage screening, feature extraction and fusion, confrontation sample verification and detection model test and evaluation. According to the method, the mail sample is input into the phishing mail detection model to obtain the mail sample to be tested, the phishing mail double-stage screening is carried out to judge whether the mail sample is the phishing mail, and if the fine-grained mail screening is carried out, the total feature vector is obtained to carry out dynamic scoring to judge whether deep behavior analysis is carried out or not. The method comprises the following steps of: firstly, carrying out confrontation sample verification to output a test result, judging whether to carry out model parameter optimization, and finally, carrying out detection model test evaluation to feed back the test condition of the phishing mail detection model, thereby improving the accuracy of identifying the phishing mail by the phishing mail detection model. The problem that in the prior art, a phishing mail detection model is low in phishing mail recognition accuracy is solved.

A system for real-time creditworthiness assessment of small and medium-sized enterprises (SMEs) based on agent-based artificial intelligence (AI), the system includes: a large number of autonomous agents connected to each other via secure communication protocols; a data ingestion processing unit configured to capture and preprocess heterogeneous data streams from structured and unstructured sources, including APIs for financial transactions, tax databases, e-invoicing registers, inventory management systems, social sentiment feeds, and IoT-enabled devices, with preprocessing including schema harmonization, anomaly detection, and encryption-based integrity preservation; an ensemble of scoring control units configured to generate dynamic credit scores, wherein the ensemble includes machine learning models, including gradient-enhanced decision trees, recurrent neural networks, and graph neural networks, the graph neural networks being configured to assess relational dependencies between SMEs, suppliers, and customer nodes in a business ecosystem; an audit controller configured to generate regulatory-compliant justification paths for each credit score; a feedback processing unit configured to update the evaluation control unit ensemble using reinforcement learning signals derived from observed repayment behavior, payment default trends, and fraud detection markers; and a user interface configured to display timestamped credit histories, confidence intervals and explanatory justifications, with the entire system running on a containerized cloud-native infrastructure with blockchain-based ledgers for version control of each point update.

Secure communication provided with secure and non-secure root ports. One embodiment comprises: a plurality of cores; a memory controller to couple to a memory; an interconnect fabric coupled to the plurality of cores and the memory controller; and a root complex to support end-to-end encrypted channels between devices, the root complex comprising: a root port to receive non-posted requests from a requestor device, the root port to associate a first tag value with a non-posted request to indicate whether the non-posted request is received over an end-to-end encrypted channel; and a bridge device to transmit the non-posted request with the first tag value and to subsequently receive a completion message including the first tag value, wherein the root port is to determine whether the completion message is to be encrypted in accordance with the end-to-end encrypted channel based on the first tag value.

An apparatus and system for privacy protection for Ambient Internet-of-Things (A-IoT) devices are disclosed. A-IoT devices transmit obfuscated identifiers (OIDs) instead of actual identifiers, which are de-obfuscated by the network to retrieve the original identifiers. The device identifiers are obfuscated using shared secret parameters and periodically updated configurations. Hash-based lightweight privacy mechanisms, temporary identifiers (TempIDs), and pseudonym generation may be used to ensure secure communication and prevent replay attacks.

The invention discloses a substation dispatching data network security communication method based on quantum tunnel encryption, relates to the technical field of large-scale power grid security assurance, and aims to solve the problems of endpoint security loss, boundary solidification, weak quantum threat resistance and inflexible deployment of a dispatching data network. According to the method, the establishment of a secure session and the encapsulation, encryption and restoration of data are realized by integrating quantum key distribution and a post quantum cryptographic operation module through quantum secure communication terminals deployed in a dispatching master station and a transformer substation. According to the method, application layer encryption and signature are carried out on telecontrol protocol data, a double-layer encryption tunnel is constructed, and transmission of various physical network media is supported. By means of the scheme, end-to-end protection is achieved, quantum attacks are effectively resisted, double encryption is provided, and networking flexibility and smooth evolution are improved.

According to the lightweight helicopter fault diagnosis method and device based on cloud edge cooperation and the medium, a dynamic cooperative distributed intelligent diagnosis system is constructed between the cloud end and the edge end, so that efficient lightweight reasoning of the edge end and centralized optimization training of the cloud end are realized; therefore, an aviation health management platform with self-learning, self-adaption and online updating capabilities is constructed. The whole system adopts a cloud-edge-end three-level architecture, wherein the end side is responsible for data acquisition and preprocessing; the edge side undertakes real-time diagnosis and lightweight model reasoning; and the cloud is responsible for global training, model scheduling and strategy optimization. Cyclic interaction of model parameters, task instructions and diagnosis results is achieved between the cloud and the edge through a secure communication link, and a closed-loop intelligent updating mechanism is formed. According to the method, the real-time performance, the computing power efficiency, the model generalization ability and the system adaptability of a fault diagnosis system are remarkably improved.

The invention is suitable for the technical field of intelligent door locks, and provides a voice interaction processing method, device and system, an intelligent door lock and a cloud server, and the method comprises the steps: receiving a voice instruction sent by a user, and carrying out the local recognition, so as to obtain a local recognition result and the confidence of the local recognition result; when the local recognition result is matched with the local instruction set and the confidence is high, executing a local operation corresponding to the local recognition result; otherwise, establishing a secure communication session with the cloud server based on voiceprint biological characteristics extracted from the voice instruction; sending the voice instruction to a cloud server through the secure communication session, and receiving a cloud operation instruction and / or a dynamic response text returned by the cloud server; and executing corresponding operation according to the cloud operation instruction, and / or converting the dynamic response text into voice for broadcasting through a text-to-voice engine. The intelligent door lock voice interaction system solves the problem that the real-time performance, the reliability, the safety and the interaction intellectualization are difficult to balance in the existing intelligent door lock voice interaction technology.

The invention relates to the technical field of Internet of Things data management, in particular to an intelligent terminal identity authentication and data security management method, system and device based on a block chain and a medium, and the method comprises the steps: generating a unique identity label and a public and private key pair of an intelligent terminal device, a fog node and a user, packaging a digital certificate, and writing the digital certificate into a block chain network; the intelligent terminal equipment initiates a registration request, and the blockchain network distributes a hosting fog node to the intelligent terminal equipment after verification is passed; the intelligent terminal device generates data, constructs a data fingerprint, sends the data fingerprint to the block chain network for storage, encrypts the data, and sends the data to the hosting fog node for storage; a user initiates an authentication request, and a temporary access token is generated after verification is passed; and establishing a secure communication channel by using the temporary access token, obtaining the required encrypted data stored by the fog node, decrypting to obtain the required data, and verifying the integrity of the required data by using the data fingerprint. According to the invention, the overall security and reliability of data management of the Internet of Things system can be significantly improved.

The invention discloses a method for estimating the safety communication rate of a near-earth satellite by using an SDFS cooperating with a GLRT. The method comprises the following steps: constructing a communication system model between the near-earth satellite and a ground terminal; analyzing the signal and channel characteristics, and obtaining the distance between the nodes, the channel gain and the received signal distribution; under the condition that the transmitting power of each monitoring party is unknown, estimating the transmitting power by adopting generalized likelihood ratio test, and independently executing the generalized likelihood ratio test based on the observation data of each monitoring party; the superior manager performs joint judgment based on a soft decision fusion scheme in combination with the generalized likelihood ratio test result of each monitoring party and a joint threshold so as to estimate the detection error probability of the monitoring party; a joint optimization strategy of the transmitting power and the number of continuous transmission time slots is constructed, and the total throughput of the system is maximized under the condition that the cooperative concealment constraint is met; according to the invention, an innovative solution is provided for reliable communication of the near-earth satellite in a complex monitoring environment.

The invention provides a secure communication method and device for an upper computer and an ECU (Electronic Control Unit), a storage medium and a program product, which are respectively applied to an upper computer end and an ECU end, and the method comprises the following steps: the upper computer obtains an encryption public key of the ECU and a decryption private key of the upper computer, generates a session key for data encryption and decryption, and sends the session key to the ECU; and the session key is subjected to double encryption by sequentially using an encryption public key of the ECU and a decryption private key of the ECU, and a communication ciphertext is generated and sent to the ECU end. And after receiving the communication ciphertext, the ECU end performs dual decryption by using the encryption public key of the upper computer and the decryption private key of the ECU end in sequence, so that the session key is recovered. And after the key negotiation is completed, the two parties encrypt and decrypt communication data through a symmetric encryption mode based on the session key. According to the invention, a hybrid encryption communication mechanism taking the public key infrastructure as the root of trust is constructed, confidentiality and integrity protection of communication data is realized, and the authentication capability of the identity of the communication entity is remarkably enhanced.

The invention provides a safe communication method and system for a V2G charging pile and an energy storage system and a storage medium. The system comprises an energy management system EMS, a charging pile EVSE, a vehicle battery management system BMS and an energy storage battery management system BMS. A session key is established through certificate bidirectional authentication and ECDH negotiation, encryption and anti-replay are realized based on AES / SM4-GCM and additional authentication data, and digital signature verification and REST / TLS transmission are performed on a cross-domain instruction; and when the cloud is unreachable, the EVSE locally executes cooperative control and virtual droop voltage stabilization, or the EMS adopts model prediction control to issue an optimal charging and discharging track. According to the protocol, the confidentiality, integrity and availability of V2G communication and control and the stability of the micro-grid are improved.

A method for secure quantum communication includes generating a photon. The method includes modulating at least two quantum state dimensions selected from the group consisting of orbital angular momentum (OAM), polarization, and phase of the photon to form a composite quantum state. The method includes directing the photon to an emission point on a helical structure having a defined spatial coordinate corresponding to classical data. The method includes emitting the photon from the emission point into a quantum channel. The composite quantum state and spatial coordinate together encode secure information.

According to the instant application, there are provided systems and methods to create a quantum secure / resistant secure communication channel (QSR-SCC) for communication between two or more end-points at or within devices, applications, services, APIs, secure communication protocols, etc. In one example of a QSR-SCC, a quantum secure / resistant private network (QSR-PN) extends existing VPN solutions using one time pad (OTP) based keys, augmented handshake mechanisms, and interchangeable ciphers, for example, stream ciphers or block ciphers, for enhancing security associated with the QSR-PN.

Embodiments of the present disclosure provide techniques for providing secure communication for connected systems. The techniques may include receiving a communication session indication associated with a first connected system; authenticating the first connected system based on IAM policy; encrypting a message to generate an encrypted message based on a post quantum cryptography public key associated with the first connected system; and causing transmitting of the encrypted message to a second connected system.

The invention relates to an industrial Internet of Things secure communication method and system based on OpenHarmony, and the method comprises the following steps: collecting node features of to-be-communicated equipment, carrying out the routing selection through combining network performance parameters, and generating a main and standby transmission path combination. And performing fragmentation encryption on the industrial production data sent by the source equipment to form encrypted fragmentation data. And sending the encrypted fragmented data through the main transmission path, and synchronously executing integrity verification to obtain a verification result. Whether transmission abnormity occurs in the main path or not is judged according to the integrity verification result, if yes, switching to the standby transmission path is triggered, encrypted fragmented data corresponding to the abnormity is retransmitted, it is ensured that the data are complete and reliable, and finally the data are recombined into complete industrial production data at a receiving end. The technical problems that a rapid detection and response mechanism for abnormal behaviors is lacked in the data transmission stage, and it is difficult to switch a standby path in time and complete data retransmission when transmission abnormity occurs are solved.

The invention provides a multi-user near-field secure communication method based on stacked intelligent metasurfaces, and relates to the technical field of wireless communication. The method comprises the following steps: obtaining an equivalent beamforming matrix and a first-layer channel transmission matrix of an SIM according to parameters of the SIM in a base station; according to the transmission distance between the SIM and the user and the transmission distance between the SIM and the eavesdropper and the parameters of the SIM, modeling a near-field channel to obtain a near-field channel model; obtaining a data transmission rate in combination with a beamforming vector of the base station, and further determining the security and the rate; and by taking maximization of the safety and the rate as a target, constructing an optimization model and decomposing the optimization model into two sub-problems to carry out alternate iterative optimization so as to obtain an optimized equivalent beam forming matrix and an optimized beam forming vector. An SIM is introduced, the freedom degree of beam regulation and control is increased, optimization is carried out on the basis of a near-field channel model by taking maximization of safety and rate as targets, legal users and eavesdroppers are effectively distinguished, signal energy is accurately guided to the legal users, and the communication safety is improved.

The invention relates to the technical field of intelligent inventory management, and discloses an intelligent inventory management method and system for electronic components, and the method comprises the steps: creating block chain identities of the electronic components; performing cryptographic operation on a tag ID of an RFID tag in a built-in encryption chip and the block chain identity identifier to obtain an encryption tag; a challenge code sent by the RFID reader-writer is received, the encryption tag uses a built-in encryption chip to carry out AES encryption operation on the challenge code and a pre-stored secret key, and a secure communication link is established; and reading the price and material number information of the components passing through the secure communication link, and executing consistency verification to obtain a verification result, the security strength and anti-clone capability of the anti-counterfeit label are improved, and efficient verification of large-scale component inventory is realized.

The invention relates to the technical field of front-end application development, in particular to a micro-front-end architecture-oriented cross-application state management, style isolation and resource collaborative loading method, which comprises the following steps of: constructing a state management module, establishing a unified state communication protocol based on a publishing / subscribing mode, and realizing safe state synchronization through an authority control mechanism; a style isolation module is constructed, a Shadow DOM and CSS rule rewriting double isolation strategy is adopted, dynamic style elements are automatically processed, and the problem of style pollution is thoroughly solved; constructing a resource coordinator module, and realizing dependent intelligent management and multi-version coexistence based on semantic version specifications; and the configuration management center uniformly coordinates the work of each module. According to the method, safe communication, reliable isolation and efficient resource utilization between micro front-end sub-applications are realized, three core problems of difficult state management, pattern conflict and resource redundancy in the prior art are solved, and the maintainability, the stability and the development efficiency of a large front-end project are remarkably improved.

The invention provides a method for assisting a movable antenna to realize secure communication by STAR-RIS, and relates to the technical field of wireless communication. According to the method, the safety and the rate of the system are maximized by jointly optimizing the beam forming of the base station, the position of the movable antenna and the STAR-RIS coefficient matrix. The method specifically comprises the following steps: constructing a downlink MIMO system and establishing a joint optimization problem; decomposing the joint optimization problem into three sub-problems by adopting an alternate optimization framework; respectively utilizing a particle swarm optimization algorithm and a weighted minimum mean square error method to be combined with a Majoritization-Minimalization algorithm to solve each sub-problem, and respectively utilizing the particle swarm optimization algorithm and the weighted minimum mean square error method to be combined with the Majoritization-Minimalization algorithm to solve each sub-problem; and alternately executing related steps until system security and rate convergence to obtain a solution of the joint optimization problem. By the adoption of the method, the safety communication performance of the system is remarkably improved, full-space coverage and precise beam regulation are achieved, the algorithm convergence is high, the solving efficiency is high, and the method is suitable for a downlink system with multiple users and multiple eavesdropping nodes.

The invention discloses a secure communication method for eavesdropping a D2D relay NOMA network. The communication process has two time slots; in the first time slot, the information source equipment sends an NOMA signal, and the multi-antenna relay equipment selects one antenna to send an interference signal to resist eavesdropping attack; in the second time slot, the relay equipment adopts the digital network coding technology to mix the interference signal of the first time slot and the decoded information source message, then adopts the NOMA technology to construct a novel NOMA signal, and re-selects one antenna to send the NOMA signal, and meanwhile, the information source sends another interference signal to weaken the eavesdropper; the NOMA user equipment and the eavesdropper calculate a required signal-to-noise ratio and a required signal-to-interference-and-noise ratio, and calculate a system outage probability and an eavesdropping probability; according to the invention, the two NOMA users can realize physical layer security communication in the D2D network, and the security of the physical layer is far better than that of a security communication scheme based on non-cooperative interference and a traditional security communication scheme based on cooperative interference.

The invention discloses a fusion quantum secure communication method of an NAT gateway, and relates to the technical field of communication network information security and quantum information. Comprising the steps of 1, creating a fusion quantum security communication system of an NAT gateway, 2, adopting a quantum hybrid encryption architecture through a quantum security module, and internally arranging a quantum key distribution unit and an anti-quantum computing acceleration chipset, 3, expanding a quintuple mapping structure of NAT through a dynamic address mapping and quantum encryption module, newly adding a quantum security dimension field QSV, and carrying out quantum encryption on the quantum key distribution unit and the anti-quantum computing acceleration chipset. And 4, developing a protocol non-inductive conversion engine through a hybrid protocol stack cooperation module, supporting an IPv4 / IPv6 dual-stack quantum tunnel and a quantum key inheritance protocol to realize cross-protocol family encryption parameter migration, dynamically adjusting a quantum encapsulation mode in an address conversion process, and dynamically associating an internal network address port with a quantum key parameter and a channel fingerprint feature. And 5, constructing a quantum perception type session state machine through an anti-quantum attack session management module, and performing a joint decision-making mechanism through quantum entanglement state monitoring and classical traffic feature analysis.