15results about How to "Improve anti-cracking performance" patented technology

The invention relates to the technical field of signal encryption, in particular to an aviation data bus signal encryption method and system based on a field programmable gate array (FPGA), which comprises the following steps of: based on input three-dimensional tensor signal data, extracting slices from a time index of an aviation data bus according to a fixed interval, progressively sequencing amplitudes of signal channels, and then segmenting; according to the method, through processing logic of matrix decomposition and feature curve generation, the feature extraction and dimension reduction process is optimized, the distinction degree and the expression capacity of feature information are improved, the randomness and the anti-cracking capacity of a key are enhanced through a key generation mode combining a dynamic disturbance factor and an encryption parameter, and the safety of signal transmission is guaranteed; through combination of amplitude superposition and frame-by-frame storage, dynamism and high efficiency of a signal encryption process are realized, signal tampering and eavesdropping risks are reduced, and through feature reconstruction and point-by-point matching processing in a decryption stage, accurate restoration of signal amplitude is ensured, and data integrity and anti-interference capability are guaranteed.

The invention relates to the technical field of payment method management, in particular to a payment method based on an NFC electronic tag. The method comprises the following steps: collecting NFC electronic tag payment signals and mobile terminal data, carrying out signal synchronization correction, fusing payment features, generating fused payment feature data, carrying out random salt value mixing processing on the data, generating mixed semi-random data, generating a one-time secret key through one-time encryption coding, and carrying out one-time encryption coding on the mixed semi-random data. The method comprises the following steps: extracting feature data of a mobile terminal, establishing an encrypted communication channel by using a one-time key, processing the one-time key through random position replacement, performing multi-path distribution by using the encrypted channel, collecting operation data of a payer terminal, performing payment authorization verification according to the collected data, ensuring the legality of payment operation, and improving the payment efficiency. And finally executing a payment action to complete intelligent payment of the NFC electronic tag. The payment method based on the NFC electronic tag is safer and more efficient.

This invention provides a remote smart lock control method based on a cloud platform, relating to the field of artificial intelligence technology. The method includes: the cloud platform sending a sound wave signal transmission command to the target smart lock, triggering the smart lock to send multi-band sound wave signals to preset auxiliary signal enhancement device deployment locations A and B; the cloud platform receiving sound wave feedback signals from locations A and B, calculating the final communication path based on signal propagation delay, frequency band interference intensity, and attenuation parameters, combined with real-time signal quality indicators reported by the remote communication module; and dynamically encrypting the command and sending it to the remote communication module through the final communication path. This invention dynamically calculates the optimal transmission path, breaking through the limitations of traditional single-channel transmission. Even in complex electromagnetic environments or obstacle-blocked scenarios, it can still ensure reliable transmission of control commands and reduce communication interruption rates.

This application provides a method for identity verification and authentication of generating events of interest from video streams. The identity verification method includes: extracting and preprocessing frames from the input video stream to remove noise interference and enhance the image quality of keyframes; identifying objects of interest in the video stream using a target detection algorithm and extracting their biometric information; matching the extracted features with a preset identity feature database to determine the object's preliminary identity; verifying the preliminary identity by combining it with scene information of the event of interest, and outputting the identity verification result. The authentication method includes receiving the identity verification result and verifying the accuracy of the identity verification through multimodal feature cross-validation, time series consistency checks, etc., to ensure the reliability of identity recognition in events of interest. The method of this application can effectively improve the reliability of identity recognition for events of interest in video streams and is applicable to various scenarios such as sports videos and intelligent transportation.

The application discloses a ReLU memristive heterogeneous neuron circuit for generating multi-scroll chaotic attractors, which asymmetrically and heterogeneously couples HR neurons with three-dimensional dynamic characteristics and FHN neuron circuits with two-dimensional dynamic characteristics through a nonlinear memristor based on a ReLU activation function. The ReLU function is constructed by a diode and an operational amplifier, and by adjusting the on-off state of the internal switch, the number of cascaded switches and the DC bias voltage, the ReLU memristive heterogeneous neuron circuit can output an odd or even number of multi-scroll chaotic attractors. The circuit breaks the symmetry limitation of traditional homogeneous neuron networks, can highly simulate the discharge law of interactive neurons in a real neural system, and the generated signals have stronger chaotic characteristics and a wider frequency band, which can provide new possibilities for physically constructing an artificial neuron system, and has important application values in the fields of image encryption and chaotic secure communication.

The present invention relates to the field of signal encryption technology, specifically to an aviation data bus signal encryption method and system based on FPGA, comprising the following steps: based on the input three-dimensional tensor signal data, extracting slices at fixed intervals by the time index of the aviation data bus, and segmenting after the amplitude of the signal channel is sorted in ascending order. In the present invention, the processing logic of matrix decomposition and characteristic curve generation optimizes the feature extraction and dimensionality reduction process, improves the distinguishability and representation ability of feature information, and the key generation method combining dynamic perturbation factors with encryption parameters enhances the randomness and anti-cracking ability of the key, ensures the security of signal transmission, and combines amplitude superposition with frame-by-frame storage to realize the dynamic and efficient signal encryption process, reduce the risk of signal tampering and eavesdropping, and ensures the accurate restoration of signal amplitude through feature reconstruction and point-by-point matching processing in the decryption stage, and ensures data integrity and anti-interference ability.

The utility model discloses a kind of angle steel tower anti-theft devices, relate to angle steel tower anti-theft technical field, including base, the base top around is uniformly fixedly connected with protective wall, the base top is equipped with groove, the groove is slidably connected with floating plate, reset spring is fixedly connected between the floating plate and groove, the trigger block is fixedly installed in the floating plate bottom, control switch is equipped with below the trigger block, the control switch is fixedly connected on groove, the control switch is electrically connected with signal line;The utility model improves reliability by setting floating plate and mechanical type trigger mode of control switch, and double protection design is formed with detection head, improves anti-theft sensitivity, even if thief bypasses protective wall or destroys local structure, alarm will be caused due to trigger control switch or be captured by detection head, improve overall anti-cracking ability, the automatic reset function of reset spring reduces artificial intervention, and maintenance is convenient.

The application discloses a kind of HTTP interaction methods and systems based on double-end automatic encryption and decryption, it is related to communication field, this method includes: client initiates HTTP request according to business requirement, and uses adaptive dynamic encryption and decryption algorithm to encrypt HTTP request, sends request ciphertext to server end;Server end uses adaptive dynamic encryption and decryption algorithm to decrypt request ciphertext, and generates response information, uses adaptive dynamic encryption and decryption algorithm to encrypt response information, and sends response ciphertext to client;Client uses adaptive dynamic encryption and decryption algorithm to decrypt response ciphertext;Wherein, adaptive dynamic encryption and decryption algorithm is based on client time, server end time and user identity mark generates encryption key, and according to encryption key, using symmetric encryption and decryption algorithm carries out encryption and decryption.The application realizes the automatic encryption and decryption processing of HTTP request and response information all the way, improves the security of data.

The application discloses a method and device for generating initialization parameters, electronic equipment and a computer program product. The method comprises: obtaining a generation instruction of an initialization parameter required for wireless communication, wherein the generation instruction comprises a first instruction for indicating that the initialization parameter is used for generating a reference signal and a second instruction for indicating that the initialization parameter is used for channel data scrambling, and the reference signal is previously agreed by a receiving end and a sending end of the wireless communication; in response to the first instruction, generating a first initialization parameter according to a pre-configured signal integer sequence; and in response to the second instruction, generating a second initialization parameter according to a pre-configured scrambling integer sequence, wherein the scrambling integer sequence is different from the signal integer sequence. The application solves the technical problem of weak security mechanism caused by the fact that the reference signal and data scrambling use the same initialization parameter in the prior art.

The invention discloses a data key acquisition method and device for a quantum security device terminal and a storage medium, and the method comprises the steps: when the quantum security device terminal leaves a factory, the device ID of the quantum security device terminal is recorded into a seed key center, and the seed key center generates a corresponding initial seed key for storage; when communication with a root key operator is carried out for the first time, an initial seed key is obtained from a seed key center, authentication is carried out, and then the initial seed key is expanded; and the root key operator sends the hybrid key to the quantum security device terminal and carries out authentication, and finally, based on the hybrid key, the data key is obtained by carrying out hybrid in an XOR mode. According to the quantum security equipment terminal authentication method, after the quantum security equipment terminal passes authentication, the initial seed key is expanded to obtain the expanded key, the independent data key with a high security coefficient is safely and efficiently derived by utilizing the existing initial seed key resource, and the key supplementing and updating burden of a seed key center is reduced.

This application provides a method for identity verification and authentication of generating events of interest from video streams. The identity verification method includes: extracting and preprocessing frames from the input video stream to remove noise interference and enhance the image quality of keyframes; identifying objects of interest in the video stream using a target detection algorithm and extracting their biometric information; matching the extracted features with a preset identity feature database to determine the object's preliminary identity; verifying the preliminary identity by combining it with scene information of the event of interest, and outputting the identity verification result. The authentication method includes receiving the identity verification result and verifying the accuracy of the identity verification through multimodal feature cross-validation, time series consistency checks, etc., to ensure the reliability of identity recognition in events of interest. The method of this application can effectively improve the reliability of identity recognition for events of interest in video streams and is applicable to various scenarios such as sports videos and intelligent transportation.

The invention relates to the technical field of vehicle-mounted safety control, and discloses a dual-mode unmanned drunk driving prevention and control method and device. The device comprises an OBD interface main control unit, an expiration detection unit and a flexible connection structure connecting the OBD interface main control unit and the expiration detection unit, and a physical unclonable conductive texture film layer is arranged in the flexible connection structure and used for forming a unique electrical response characteristic. The main control unit realizes dual authentication of physical identity and communication identity of the expiration detection unit by detecting impedance characteristics of the conductive texture film layer and combining encryption communication authentication. The system identifies a manned driving mode or an unmanned driving mode based on a vehicle CAN bus signal, and executes corresponding alcohol detection processes and vehicle starting or manual take-over authority control in different modes. And triggering a permanent failure protection mechanism when detecting that authentication is abnormal, alcohol exceeds the standard or connection is abnormal. According to the invention, a drunk driving prevention and control system combining physical authentication, electrical authentication and dual-mode control is constructed, and the system security and tamper-proofing capability are improved.

The invention discloses a polarization encryption one-way data ferrying device and method, relates to the technical field of data security transmission, and is suitable for isolated network environments such as a vehicle detection station and the like. The device comprises an integrated ferry host, a built-in transmitting / receiving integrated mainboard, a data access module, a polarization encryption module, an optical transmitting / receiving module, a polarization demodulation module and a data output module which are in one-way connection through a high-light-transmittance optical fiber link. The method comprises the following steps: accessing data through the vehicle inspection data interface, encoding the data into an optical signal through the polarization encryption module for dynamically updating a secret key, demodulating the optical signal after unidirectional transmission, and completing format conversion and integrity verification by the data output module. The device does not need to depend on a physical medium and an external network, physical layer encryption is combined with a dynamic secret key to improve safety, the optical link transmission rate reaches 10 Gbps, the device is integrally designed, configuration is simplified, cost is reduced, modules can be flexibly replaced, and efficient and safe one-way data ferrying is achieved.

The invention discloses an initialization parameter generation method and device, electronic equipment and a computer program product. The method comprises the following steps: acquiring a generation instruction of an initialization parameter required by wireless communication, the generation instruction comprising a first instruction used for indicating to generate a reference signal according to the initialization parameter and a second instruction used for indicating to perform channel data scrambling according to the initialization parameter, the reference signal is predetermined by a receiving end and a transmitting end of wireless communication; in response to the first instruction, generating a first initialization parameter according to a pre-configured signal integer sequence; in response to the second instruction, a second initialization parameter is generated according to a pre-configured scrambling integer sequence, which is different from the signal integer sequence. According to the method and the device, the technical problem of weak security mechanism caused by the fact that initialization parameters with the same source are used for reference signals and data scrambling in the prior art is solved.