28results about How to "Good encryption" patented technology

The invention discloses an image encryption method and device based on a coupled image lattice and a cellular automaton, and relates to the field of image processing, and the method comprises the steps: constructing a coupled image lattice chaotic system of an improved coupled structure based on an elementary cellular automaton and two optimized one-dimensional mappings; performing correlation calculation on the plaintext image and the external key to generate an internal key; inputting the internal key into the coupling mapping lattice chaotic system of the improved coupling structure for iteration and expansion to generate a chaotic sequence matrix; selecting and recombining the chaotic sequence matrix to generate an initial cellular matrix and a key matrix; scrambling the plaintext image according to the initial cellular matrix by adopting a scrambling algorithm based on a two-dimensional cellular automaton to obtain a scrambled image; and diffusing the scrambled image according to the key matrix by adopting a diffusion algorithm based on a class cellular automaton to obtain a ciphertext image. The method and the device can simplify operation and improve encryption efficiency and safety performance.

The invention discloses an image encryption method based on a new non-adjacent dynamic coupling mapping lattice and cross scrambling. The method comprises the following steps: acquiring an image to be processed; preprocessing an image to be processed to obtain parameters and initial values required by an encryption process; generating a chaotic sequence based on the parameters and the initial value required by the encryption process; adopting a cross traversal algorithm, selecting different central points and traversal directions of the image to perform preliminary scrambling on positions of image pixels, and obtaining an initial scrambling image; a random cross transformation algorithm is adopted to perform scrambling and diffusion operation based on the initial scrambling image, the pixel position of the image is changed, the pixel value of the image is preliminarily changed, and a semi-encrypted image is obtained; and carrying out secondary diffusion on the semi-encrypted image by adopting a bidirectional disturbance index diffusion algorithm to obtain an encrypted image. According to the method, corresponding attacks can be effectively resisted, and good safety is achieved; and the time efficiency is relatively high.

The present invention discloses an image encryption method and system based on Raspberry Pi and memristor neural network, which are applied to the field of image encryption technology, wherein the method comprises: inputting an original image; performing a first encryption process on the original image; performing a second encryption process on the image obtained by the first encryption process using a memristor neural network to obtain a final encrypted image, and sending the final encrypted image to the second Raspberry Pi via the first Raspberry Pi; the present invention enhances the security and concealment of image transmission by encrypting the image before transmission.

The present invention relates to the technical field of information security and image processing, and proposes a color image encryption and decryption method. The method can quickly complete the encryption and decryption of various color images, and the encrypted ciphertext image destroys the structure of the plaintext image, and can effectively resist the image pixel frequency statistical attack. The color image encryption method first constructs a color key image to control the encryption algorithm and the decryption algorithm; secondly, the plaintext color image is preprocessed by using a Logistic chaotic system, and then in each channel of the plaintext image, double pixels are used as groups to search for ciphertext pixels in the rectangle formed by the key image, and finally the ciphertext color image is output. The method has high encryption efficiency and strong practicality, can effectively resist frequency statistical attacks and selected plaintext attacks, and has a good encryption effect. The present invention can be applied to the generation, storage, transmission and other scenes of color images to effectively protect their confidentiality.

The application provides an image encryption method based on ring rotation and generalized Feistel cipher structure. The method comprises the following steps: generating a chaotic sequence by a hyperchaotic Chen system, and performing ring rotation twice on a plaintext image to realize efficient global scrambling; then, a one-dimensional chaotic system 1DL-SCS is used to perform line-by-line index scrambling on the image, and then the pixel points are redistributed column by column to further break the correlation between the pixels; in the diffusion stage, the plaintext is divided into four parts, substituted into an improved generalized Feistel cipher structure for calculation, and further divided into two parts in the round function, so that the diffusion efficiency is greatly improved, and through two rounds of iteration operation, a good encryption effect can be obtained, and the security is high.

The invention discloses a software code protection and adjustment system and method based on a digital encryption technology, and relates to the field of program control. According to the method, disassembling operation and primary analysis are carried out on each binary code in a binary software code set, and then each basic block forming the code is determined; meanwhile, a code execution process is determined, so that subsequent control flow adjustment is facilitated, and a basis is provided for subsequent adjustment of the position of the basic block; algorithm support is provided for subsequent replacement of variables in codes, logical transformation of all function basic blocks and position transformation of all basic blocks by constructing an obfuscation algorithm set, and meanwhile, complete transformation of logic structures and positions of the codes is ensured, so that the security of the codes is ensured; the source code is protected from being tampered or copied; and finally, the converted source code is encrypted, so that the security of the code is further ensured.

The present invention discloses a data encryption storage method; comprising the following steps: S1, receiving data information to be stored; S2, establishing index information of the data information; S3, segmenting the data information; S4, compressing the data information; S5, storing the compressed data information; a data encryption storage system, comprising a data information preprocessing module, a data information index establishing module, a data information segmenting module, a data information compression module and a data information encryption module; the present invention improves the receiving efficiency of data information by buffering and storing the data information, and preprocesses the received data information so that the data information is convenient for subsequent processing, and segments the data information and divides the data information into several small segments, so as to facilitate the subsequent encryption and compression of the data information and improve the encryption storage efficiency of the data information.

The invention relates to a secure tunnel transmission method and device, equipment, a storage medium and a program product. The method comprises the following steps: receiving a security tunnel configuration strategy distributed by a control center and a corresponding table of application IDs and application IP addresses; establishing a security tunnel with the security gateway of the opposite end according to the security tunnel configuration strategy; distributing the security parameters negotiated by the security tunnel to each application program of the home terminal; receiving a first encrypted traffic initiated by an application program from a home terminal and an application ID of an opposite terminal; and according to the corresponding table of the application ID and the application IP address, after the application ID of the opposite terminal and the destination information of the security gateway of the opposite terminal are packaged in a protocol header, the first encrypted traffic is sent to the security gateway of the opposite terminal through the security tunnel. Therefore, encryption and decryption operations can be shunted to a back-end application program, so that the gateway node only needs to pay attention to identification and forwarding of tunnel traffic, the performance pressure of the gateway node is remarkably reduced, and repeated encryption and decryption operations of internal traffic are reduced.

The utility model discloses a monitoring system, which belongs to the technical field of medical equipment information monitoring and comprises medical equipment, the input end of the medical equipment is electrically connected with a temperature sensor, a humidity sensor and an electric leakage sensor respectively, and the output ends of the temperature sensor, the humidity sensor and the electric leakage sensor are electrically connected with an information acquisition module. And the output end of the information acquisition module is electrically connected with a data transmission module. By means of the design of the circuit, real-time monitoring of the temperature and humidity environment and the electricity utilization environment of the medical equipment can be effectively achieved, detected data information can be transmitted to a far-end host in real time, remote monitoring is achieved, and the temperature and humidity environment and the electricity utilization environment of the medical equipment can be effectively monitored by matching internal standard information values set in advance. The data information can be automatically matched, and when the information is abnormal, the sound-light alarm unit can be automatically controlled to give an alarm and produce sound, so that the safety and the practicability of the system during use are effectively improved.

The present application discloses a method for establishing a PAYG‑ID payment code for a pay-as-you-go product, wherein the PAYG‑ID includes a Q‑ID function code, a PAY‑ID function code, and a SecretKey function code; the Q‑ID function code is used for internal hierarchical management of different regions where different models of products are sold; the PAY‑ID function code is a product identification code that users can directly view on the product packaging shell or the product UI interface, i.e., a plain code; the SecretKey function code is an internal management password for the product, i.e., a cipher code. The PAYG‑ID established in the present application achieves precise management of products in the background by establishing a connection between product codes and sales areas and encrypting and managing the codes, and the related ID is not easy to crack after encryption, and has the characteristics of convenient management and strong anti-tampering ability. It is applied to the field of offline installment payment, which is conducive to the promotion of offline installment payment methods.

This utility model belongs to the field of power equipment technology and discloses an electronic tag device and electronic tag built into the housing of a current transformer. The electronic tag device built into the housing of the current transformer includes a base, a protective shell, and a fixing component. The base is used to store the electronic tag body; the protective shell is used to protect the electronic tag body; the fixing component includes a movable block, a limiting block, a limiting groove, an elastic element, and a guide post. The movable block is connected to the base, the limiting block is connected to the movable block, the limiting groove is formed in the base, the elastic element is clamped between the movable block and the base, and the guide post is connected to the base. With the fixing component, the protective shell can be removed, which allows for convenient encryption, updating, or backup of the electronic tag, ensuring the accuracy and timeliness of information and preventing safety accidents caused by information lag or errors.

The invention discloses a chaos-based composite image encryption method. The method comprises the following steps: 1) establishing a Logistic chaos mapping formula; 2) decomposing the image into a red component, a green component and a blue component; (3) setting values of parameters x0 and alpha, respectively taking x0 and alpha as secret values of the two communication parties, randomly generating a group of chaotic sequence values according to a Logistic chaotic mapping formula, taking the group of chaotic sequence values as sequence values of Arnold transformation matrix parameters a and b, and respectively taking a and b as public values of the two communication parties; 4) changing the initial position of each pixel point in each color component according to an image replacement formula; 5) randomly generating another group of chaotic sequence values according to a Logistic chaotic mapping formula, multiplying the group of chaotic sequence values by the pixel points respectively, and diffusing the graph of each color component to form an encrypted image of each color component; and 6) combining the encrypted color component images into an encrypted image.

The invention belongs to the field of ecological management, and particularly relates to an ecological environment monitoring and supervising system which comprises an environment monitoring module, a signal data encryption module, a signal data transmission module, an encrypted signal preprocessing module, an environment visualization supervising module, an environment data early warning module and an environment management and control module. According to the ecological environment monitoring and supervising system provided by the invention, the environmental data is monitored in real time through the sensor, the environmental data is encrypted and transmitted to the supervising processing center, the environmental data is visually displayed, the change correlation influence between the environmental data is analyzed through a proposed environmental data correlation analysis algorithm, and the early warning of the environmental data is carried out. Corresponding early warning management and control processing is carried out; according to the invention, comprehensive monitoring and effective supervision of environmental data are realized by integrating multiple functions such as environmental monitoring, data encryption, data transmission, data processing, visual display, data early warning and governance processing.

The invention discloses an image protection method suitable for a medical internet of things. The method comprises the following steps: setting a secret key; acquiring initial parameters required by one-dimensional chaotic mapping by adopting a secret key, wherein the initial parameters comprise parameters and initial values of a chaotic mapping equation; respectively performing scrambling processing on two plaintext images acquired on the Internet of Things equipment to obtain two scrambled images; combining the two scrambled images to obtain a combined image; in combination with the obtained initial parameters required by the one-dimensional chaotic mapping, performing XOR diffusion on the merged image to obtain an XOR diffused image; splitting the image after the XOR diffusion to obtain two split images; performing re-scrambling processing on the two split images to obtain an encrypted image; and when the two plaintext images acquired on the Internet of Things equipment need to be checked, carrying out reverse processing on the encrypted images to finally obtain the two plaintext images. According to the invention, the encryption effect is good, and the security in the dual-image transmission process can be greatly improved.

The present application relates to a method, system and computer-readable storage medium for constructing an IPv6 private network, and belongs to the field of communication technology. Obtain a request message to be sent and a local IPv6 prefix, analyze and process the request message to obtain an IPv6 message, determine the corresponding recipient IPv6 stealth security gateway according to a preset correspondence and the target address of the request message, determine the target IPv6 prefix based on the recipient IPv6 stealth security gateway, construct an outer IPv6 message based on a preset data communication certificate, a local IPv6 prefix and a target IPv6 prefix, so that the outer IPv6 address has dynamic change characteristics and cannot be forged, and encrypt and encapsulate the IPv6 message through the outer IPv6 message to obtain an encapsulated IPv6 message, and send the encapsulated IPv6 message to the recipient IPv6 stealth security gateway. The present application can greatly improve the security of private network interconnection.

An encryption method based on a switching inertia neural network with leakage time lag relates to the field of audio encryption. It solves the problem that the existing encryption method that relies on neural networks adopts a fixed network structure and a static processing mechanism, resulting in the encryption effect being limited by the model performance. The switching inertia neural network with a mixed time-varying delay and leakage time lag constructed by the present invention is used as an audio encryption drive system; and an audio decryption response system is constructed based on the designed synchronization controller and the audio encryption drive system; the subsequent encryption and decryption process is realized under the condition of global exponential synchronization controlled by the synchronization controller. The existence of multiple time lags forms a mixed time-varying delay, and the dynamic behavior of the system is more difficult to predict. The introduction of the time lag inertia weight factor makes the encryption process more complicated, has stronger resistance to randomness and reversibility, and the design of the synchronization controller greatly increases the difficulty of cracking. It is mainly used for the encryption of audio data.

The invention discloses an automatic crank call prevention method for a 5G terminal based on a quantum encrypted call scene. The method comprises the following steps: S1, starting a quantum encrypted call; s2, judging whether the quantum encrypted conversation function is in a normal available state or not; s3, when the encrypted conversation function is normal, the 5G terminal starts a key negotiation process; s4, the 5G terminal monitors the incoming call and generates an anti-harassment AI intelligent identification management table; s5, the 5G terminal analyzes and processes the anti-harassment AI intelligent identification management table by using an algorithm; s6, the 5G terminal executes logic judgment according to the analysis processing result, and then the call is ended; and S7, feeding back the call information to the AI intelligent identification management table, and continuously updating the call information. According to the method, encryption based on the quantum encrypted conversation function is more excellent, intelligent identification and screening are realized based on the anti-harassment AI intelligent identification management table and intelligent service logic processing, and harassment calls are further intercepted, so that information leakage can be effectively prevented, and the security of the harassment calls is improved. Model training is carried out on the initial threshold T of the incoming call and each feature weight, random dynamic change is realized, and the interception efficiency is higher.

The invention discloses a digital collection encryption method and device, a storage medium and electronic equipment, and relates to the field of financial science and technology and the field of information security. The method comprises the steps that a target key is generated according to a first algorithm, and the first algorithm is used for generating a random encryption key; a second algorithm is adopted to carry out thinning processing and target processing on the initial digital collection to obtain a first digital collection, the second algorithm is used for simplifying linear features or paths, the thinning processing is used for filtering redundant data in the data, and the target processing is used for reducing the size of the data in a format conversion mode or a data compression mode; and encrypting the first digital collection according to the target key to obtain a target digital collection. The technical problems of information redundancy and low encryption efficiency of a traditional digital collection encryption method are solved.

A multi-image encryption method based on dynamic stereo S-box and lifting wavelet belongs to the field of information encryption. At present, the network transmission and storage of digital images are becoming more and more frequent. In order to protect the content of network interactive images, the present invention establishes a dynamic stereo S-box and combines wavelet transform to propose a multi-image encryption method based on dynamic stereo S-box and lifting wavelet transform. First, k The original images are combined into an image cube, and then the lifting wavelet transform is performed; secondly, chaos is used to scramble the low-frequency part in the frequency domain; thirdly, the dynamic stereo S-box is used to replace the pixel values ​​of the image cube after the lifting wavelet inverse transform; finally, the image cube is decomposed to produce k The experimental results show that this method can encrypt multiple interactive images at the same time, with good encryption effect and strong security.

This invention belongs to the field of ecological management, specifically relating to an ecological environment monitoring and supervision system. This system includes an environmental monitoring module, a signal data encryption module, a signal data transmission module, an encrypted signal preprocessing module, an environmental visualization and supervision module, an environmental data early warning module, and an environmental control module. The proposed ecological environment monitoring and supervision system uses sensors to monitor environmental data in real time. This encrypted environmental data is transmitted to a monitoring and processing center and then visualized. Using a proposed environmental data correlation analysis algorithm, the system analyzes the correlation and impact of changes in environmental data, provides early warnings, and implements corresponding early warning and control measures. By integrating multiple functions such as environmental monitoring, data encryption, data transmission, data processing, visualization, early warning, and control measures, this invention achieves comprehensive monitoring and effective supervision of environmental data.

The invention provides a hyperchaotic image encryption method based on magic cube three-dimensional space parallel rotation scrambling, and the method comprises the steps: generating a pseudo-random sequence as a preprocessing parameter, an Arnold transformation parameter and a magic cube scrambling parameter through a seven-dimensional hyperchaotic system, and carrying out the preprocessing of an R channel, a G channel and a B channel of a plaintext image through the pseudo-random sequence, the Arnold transformation parameter and the magic cube scrambling parameter, then, Arnold transformation is controlled by a pseudorandom sequence to scramble the preprocessed image so as to improve the defect that data aggregation easily occurs during subsequent scrambling of the three-dimensional magic cube, then, an obtained two-dimensional chaos matrix is converted into a three-dimensional matrix, a rotating shaft, the number of rotating layers and the rotating angle are dynamically selected by the pseudorandom sequence, and the three-dimensional chaos matrix is obtained. And parallel rotation scrambling of the magic cube three-dimensional space is carried out. According to the method, the image pixel values are mapped to all the small cubes contained in the whole Rubik's cube for three-dimensional space scrambling, and the characteristics of the three-dimensional structure of the Rubik's cube are better utilized, so that the scrambling complexity is improved, the safety of the ciphertext image is improved, the key space is larger, and the scrambling effect is better.

The present invention proposes an image adaptive scrambling encryption method based on chaotic mapping. The method adopts a scrambling-diffusion encryption structure. First, each pixel of an original image of size M×N is decomposed into hexadecimal to obtain a high-level image and a low-level image. Secondly, the two images are cross-diffusion encrypted by introducing a chaotic sequence generated by a chaotic mapping. Then, the two encrypted images obtained after cross-diffusion encryption are subjected to mutual adaptive selective scrambling in combination with the chaotic sequence. Finally, the two scrambled images are recombined into one image, and the chaotic sequence is used to perform bidirectional modular diffusion encryption on the image to obtain the final encrypted image. The method provided by the present invention is closely related to the original image, has high encryption efficiency and ideal encryption effect, and can well resist classic cryptanalysis methods such as chosen plaintext attacks.

The present invention provides a gravel pile making method based on stratum disturbance linkage monitoring, which relates to the technical field of pile making. The invention mainly adopts an acceleration sensor inserted into the stratum surface, and the position of the acceleration sensor is located on the measuring line connecting the centers of the formed pile and the hole to be formed, and is close to the formed pile, so that the disturbance effect of the vibration of the vibrator on the stratum during each reverse insertion and descent process can be monitored by the acceleration sensor, thereby, the current vibration retention setting value or the next vibration retention setting value can be adaptively changed to ensure that the disturbance effect of the vibrator on the stratum is within a controllable range, so that the stratum does not deviate, and the stratum density can be better.

The present invention provides a remote configuration system and method for protection fixed values ​​based on blockchain. The system includes a protection device, which is used to automatically generate a fixed value template file according to its own fixed value setting, calculate its hash value, and store the fixed value template file with the hash value locally and in a blockchain server; the dispatching management system is used to retrieve the fixed value template file with the hash value stored locally in the protection device, verify its hash value, and if the verification is wrong, retrieve the fixed value template file from the blockchain server; after the verification is correct, the corresponding fixed value is automatically written according to the fixed value template entry, a fixed value file is generated and its hash value is calculated, and the fixed value file with the hash value is stored in the blockchain server and sent to the substation where the protection device is located at the same time; the protection device is also used to perform hash value verification after receiving the fixed value file, and if the verification is wrong, request the blockchain server to send the fixed value file; after the verification is correct, the fixed value file is executed.

A fast image encryption method based on chaos and pseudo wavelet transform belongs to the field of information encryption. As an important information carrier, images occupy a very important position in various fields. With the increasing image clarity and data volume, the encryption efficiency of images becomes crucial. In order to ensure the real-time and reliability of image encryption, inspired by image wavelet transform, the present invention proposes an image encryption method based on chaos and pseudo wavelet transform. First, the original image is inversely transformed by wavelet transform and divided into four sub-bands; secondly, the low-frequency sub-band components are locally scrambled and XOR diffusion is performed using a chaotic system; finally, the matrix is ​​reconstructed by inverse pseudo wavelet transform to obtain an encrypted image. Experimental results and algorithm analysis show that this method only needs to process part of the data in the original image to achieve a good encryption effect, and avoids the problem of precision loss in traditional frequency domain transform, with good encryption effect and high security.

The utility model relates to a submarine cable fault on-line monitoring system which comprises a measuring optical fiber and a distributed optical fiber monitoring system. The distributed optical fiber monitoring system comprises an upper monitoring host, a monitoring unmanned aerial vehicle and a monitoring unit. The monitoring unit comprises a plurality of convex joints, and a combined sensor module used for monitoring submarine cable state parameters, an MCU and a communication module are packaged in a joint cavity of each convex joint; a coding unit is arranged in the MCU; the communication module is in communication connection with an upper monitoring host by taking a measuring optical fiber as a signal transmission channel so as to realize data transmission; the monitoring unmanned aerial vehicle can be in wireless communication connection with the monitoring unmanned aerial vehicle entering the communication range so as to realize data transmission; and the upper monitoring host end is also provided with a monitoring unmanned aerial vehicle docking station for performing data transmission with the returning monitoring unmanned aerial vehicle. The system is high in use reliability, convenient to operate, good in data anti-collision and encryption performance, time-saving and labor-saving, convenient to manage, and capable of saving a large amount of manpower and material resources.

The invention belongs to the technical field of solid luminescent materials, and particularly relates to a mechanoluminescent material and a preparation method and application thereof. The chemical formula of the mechanoluminescent material is Ca5Ga4. 8Al1. 2O14: D, wherein D comprises Bi < 3 + > and Sm < 3 + >. Ca5Ga4. 8Al1. 2O14: Bi < 3 + > and Sm < 3 + > are red light, and Ca5Ga4. 8Al1. 2O14: Bi < 3 + >, Sm < 3 + > and Tb < 3 + > are yellow light. Through Bi < 3 + > doping, high trap concentration and deep trap, the material can be charged under natural light, pre-irradiation is not needed, mechanoluminescence intensity and sensitivity are high, and stability is good; and moreover, red and yellow mechanoluminescence is realized in one matrix. The material provided by the invention can realize red and yellow self-charging mechanoluminescence, lays a foundation for anti-counterfeiting application, is high in sensitivity, can realize mechanoluminescence in various scenes such as powder and epoxy resin compounding, and broadens the application scene.

The invention relates to the technical field of information tracing, in particular to an agricultural product comprehensive sales information tracing method and system. The method comprises the steps that the agricultural product tracing platform encrypts source information of agricultural products and returns an encryption result to a consumer, and the encryption process comprises the steps that the source information is converted into a digital sequence; the method comprises the following steps of: constructing a character sequence, a moving sequence and a symbol sequence, and encrypting the digital sequence, namely converting a # imgabs1 # number # imgabs2 # number in the digital sequence into a # imgabs3 # number with a symbol according to a # imgabs0 # element in the symbol sequence, and when the # imgabs4 # number, taking an element with an index of # imgabs5 # in the character sequence as a ciphertext # imgabs7 # of # imgabs6 #, and taking the # imgabs8 # as the length of the character sequence; and obtaining an update index # imgabs10 # of the # imgabs9 # according to the moving sequence, and updating the character sequence according to the # imgabs11 #. The method is complex in encryption result, has an avalanche effect, can resist statistical analysis attacks and brute force attack attacks, and improves the credibility of agricultural product sales information traceability.