210results about How to "Prevent tampering" patented technology

The invention discloses a chip security access control method, device and system and a chip. The control method comprises the following steps: when the chip is coupled with access equipment through a debugging interface, detecting an access request through the debugging interface and acquiring an access object of the access request; obtaining a first verification key or a second verification key based on an access object of the access request, and executing first verification or executing second verification based on the first verification; wherein the first verification key and the second verification key are generated based on a unique user identifier of an electronic device of the chip, the first verification key is associated with the first safety circuit, and the second verification key is associated with the second safety circuit; and controlling the first safety circuit or the second safety circuit to be switched on or switched off according to a result of the first verification or the second verification.

The invention relates to the technical field of cross-border data secure transmission, and particularly discloses a semantic analysis-based cross-border data secure transmission method, which comprises the following steps of: dividing a sender credit investigation level through a multi-source credit investigation acquisition and semantic analysis model; the method comprises the following steps: preprocessing to-be-transmitted multi-modal data, and classifying the data through semantic alignment; matching transmission authority according to credit investigation levels and data types, separating transmittable data according to core / non-core data, and performing hierarchical encryption according to sensitive types of the data; data are transmitted through a cross-border private line of a TLS1.3 protocol, a sliding window and a retransmission mechanism are combined, and the integrity is verified by adopting a Hash algorithm. According to the invention, compliance dynamic adaptation is realized, protection precision and reliability are improved, and safety and efficiency are balanced.

The utility model discloses a cylinder penetrating piece shell of an oil cooling motor, which comprises a shell body, the shell body is cylindrical, a baffle ring protruding inwards is arranged on the inner wall of the shell body, a connecting part is formed on the end face of the outer surface of the shell body, the shell body is installed and positioned by the connecting part, an end plate is formed at the other end of the shell body, and the end plate is connected with the baffle ring. An opening is formed in the center of the end plate, the sealing plug is inserted into the shell, the baffle ring and the end plate are located at the two ends of the sealing plug, the baffle ring is arranged on the inner wall of the shell, the sealing plug is limited through the baffle ring, the baffle ring and the sealing plug are in interference fit, the assembling efficiency of the sealing plug is improved, and the sealing plug is convenient to assemble. And meanwhile, the end plate limits the other end of the sealing plug, blocks the two ends of the sealing plug and fixes the sealing plug.

The invention relates to a Keystone-based deep ground security heterogeneous data fusion method and system, and the method comprises the steps: deploying a Keystone trusted execution environment on a deep ground edge computing node, creating a security enclave, carrying out the encryption access of multi-source heterogeneous data on the basis of remote authentication and key agreement, completing the space-time alignment and feature extraction after decryption in the enclave, and carrying out the fusion of the multi-source heterogeneous data. And performing cross-modal association analysis and risk assessment based on a preset model or a rule engine to obtain a fusion result, encrypting and signing the fusion result in the enclave, distributing the fusion result to an authorized receiver through a secure channel, and realizing one-time task destruction, long-term task cycle reconstruction and key refreshing in combination with enclave full life cycle management. According to the method, the credibility and the real-time performance of heterogeneous data fusion processing in a complex scene can be improved while the confidentiality and the integrity of deep operation and maintenance data are guaranteed.

The invention discloses an improved structure of a petroleum underground pitching sliding sleeve, and relates to the technical field of pitching sliding bushs.The improved structure comprises a pipeline, connectors are fixedly connected to the two ends of the pipeline, a plurality of clamping assemblies are arranged on the outer wall of the pipeline, a sliding sleeve is installed in the pipeline, a pitching ball is arranged in the sliding sleeve, and the clamping assemblies comprise pins; one end of the pin penetrates to the inner wall of the pipeline and is sleeved with a positioning block in a threaded mode. An elastic unlocking mechanism is composed of the button, the round pipe and the spring, under the normal working condition, the elastic force of the spring pushes the round pipe to abut against the interior of the pin, threaded connection and locking of the pin and the positioning block are guaranteed, thread loosening is prevented, when the sliding sleeve needs to be detached for overhaul, the button is pressed to compress the spring and drive the round pipe to retract, the locking state of the pin can be quickly relieved, and the service life of the pin is prolonged. The dowel can be drawn out by screwing out the positioning block, and cutting-free quick disassembly of the sliding sleeve is achieved.

The utility model relates to plate processing technical field especially relates to a flat plate work piece bending device, including setting on the press bending female die of machine tool operation platform, the top surface of press bending female die places the flat plate work piece to be pressed bending, the top of flat plate work piece is provided with the press bending male die, the both sides of press bending male die are connected with the mounting seat of symmetrical arrangement, the outside of mounting seat all is provided with the cylinder connected with it, the bottom of mounting seat all is provided with through -hole, the telescopic link of cylinder passes through the through -hole and is arranged in the bottom of mounting seat, the protruding end of telescopic link all is connected with the clamping block, the utility model discloses through the clamping block clamping flat plate work piece, fixes its limit, makes flat plate work piece in the process of pressing bending, the middle line relative press bending male die middle line can not displace, is not easy to go out left and right press bending asymmetric situation to reach the effect that prevents the running, improves finished product processing quality.

This invention belongs to the field of integrated circuit design technology, specifically relating to a method for optimizing integrated circuit design data. This method first constructs a "tool-layer-semantic" data acquisition architecture, integrating multi-channel parallel acquisition units to collect heterogeneous data from multiple sources. Compliance pre-verification is performed through hardware logic circuits and a verification rule base, extracting key data identifiers. A three-level incremental compression strategy based on key data priority, combined with an intelligent index integrating multi-dimensional indexes, is used for compression and storage. The stored data undergoes multi-dimensional optimization, including semantic deduplication, priority optimization, format conversion, and source quality backtracking, forming a unified format optimized semantic. Through an interactive interface, it is adapted and interacted with electronic design automation tools. After consistency verification and performance testing feedback loops, the final design data and full-process traceability information are obtained and stored. This invention achieves unified management, efficient compression, intelligent optimization, and full-process traceability of design data.

The application provides a kind of electric vehicle charger remote efficient metering verification method, it is related to electric vehicle charging equipment electric energy metering verification technical field, including in the charger production factory or nearby setting up charger metering verification laboratory, factory shipment fixed point verification is carried out;Charger connection device, charger detection equipment, monitoring equipment, remote operation facilities and safety facilities are arranged in the verification laboratory, and verification cloud platform is deployed in the remote operation facilities, the application sets up charger metering verification laboratory in the production factory or nearby, and adopts the virtual load verification mode that voltage source is separated from current source, simulates high voltage and large current working condition under low power condition, replaces the verification mode that traditional field needs to be configured with high-power physical load, so as to avoid the use of special detection vehicle and heavy load equipment, effectively reduces the equipment volume and construction cost, improves the equipment utilization.

The invention discloses an enterprise-level knowledge base information query system and method based on HMAC, and relates to the technical field of information security, the system comprises a client, an authentication module, a large language interaction module and a knowledge base module; the client is used for acquiring an account, a password and a retrieval request of a user; the authentication module is connected with the client and is used for receiving the account and the password and generating a user token; the large language interaction module is connected with the client and used for receiving the retrieval request, generating a query plan and signing the query plan and the user token to obtain a first signature packet; the knowledge base module is connected with the client and is used for receiving the first signature packet and signing again after verification is passed to obtain a second signature packet; and the big language interaction module is also used for receiving the second signature packet, and generating a query result through a second big language model in the big language interaction module after the verification is passed. According to the invention, the security of information transmission between the client and the knowledge base can be improved.

The utility model provides a kind of width self-adapting foam tape cutting guide mechanism, including roof frame, still include: baffle wheel, the top end in the roof frame inside is installed by bolt, the both sides of roof frame are fixed with mounting seat, connecting frame, rotatingly connected in the side of roof frame, the bottom end of connecting frame away from the side of roof frame is rotatingly connected with front end plate, positioning structure, it is set in the inside of connecting frame.The utility model, by rotating crank handle to drive two-way screw rod rotation, make two groups of moving block to drive corresponding locating plate movement, adjust the spacing between two groups of locating plate, thus realized the width adjustment function of this device, can flexible adaptation different width specifications foam tape, without complex disassembly can be quickly completed adjustment, can automatically guide tape to keep central posture to convey simultaneously, effectively avoid material deviation, ensure that tape stress is even, position accurate when cutting.

The application discloses an industrial steel cutter with adjustable cutting depth and an implementation method thereof, and relates to the technical field of industrial cutting tools, aiming to solve the problem that most of the existing industrial steel cutters adopt fixed structures or simple bolt adjustment structures, the cutting depth of the fixed steel cutter cannot be adjusted, and the steel cutter can only adapt to a single machining condition, the bolt adjustment structure only relies on a single bolt locking, and cannot realize micron-level precision fine adjustment, and the technical scheme is as follows: the industrial steel cutter comprises a cutter body shell, a connecting seat with holes, a telescopic blade assembly, a fine adjustment driving assembly and a connecting assembly, a mounting cavity is arranged at the bottom of the cutter body shell, the connecting assembly is slidingly assembled in the mounting cavity, a driving cavity is arranged at the top of the cutter body shell, the telescopic blade assembly and the fine adjustment driving assembly are connected through the connecting assembly, the industrial steel cutter adopts a worm gear and differential variable pitch screw composite transmission structure, the worm gear has a speed reduction transmission effect, and micron-level cutting depth fine adjustment can be realized.

The utility model discloses a multifunctional restraining glove which comprises a glove body, a restraining belt, a grip ball and a tightening device, the glove body is integrally connected with finger separating sleeves of four fingers, a hole is formed in the position, corresponding to the ring finger, of the glove body, the end of each finger separating sleeve is open, and a groove is formed in the position, corresponding to the hand back, of the glove body. A grip ball is sewn and connected to the position, corresponding to the palm center, of the glove body, and an elastic rope is sewn between the side, facing the grip ball, of each finger separating sleeve and the grip ball. A finger ring is fixedly arranged at the end of each finger separating sleeve in a sleeved mode, a guide pipe is fixed to the bottom of the grip ball, four pulling ropes with different lengths penetrate through the guide pipe, one end of each pulling rope is fixed to one finger ring, the other ends of the four pulling ropes are movably fixed to a tightening device, and the tightening device is fixed to a binding belt. The glove has the advantages that the elastic rope of the glove body limits the moving space from fingers to the grip ball, so that the fingers are prevented from moving randomly while moving and exercising of the fingers are facilitated, and an infusion tube is prevented from being struggled off.

The application provides an embedded device firmware security upgrade method and system in the technical field of embedded devices, which comprises the following steps: S1, a server sets two firmware encryption rules and rotation rules; S2, the firmware file is encrypted into encrypted firmware based on the rotation rules and the firmware encryption rules; S3, after the upgrade terminal checks the received encrypted firmware, the upgrade terminal sends an upgrade preparation command to the embedded device; S4, after the embedded device checks the upgrade preparation command, the embedded device feeds back a first check result; S5, the upgrade terminal sends the encrypted firmware to the embedded device; S6, the embedded device decrypts the encrypted firmware to obtain the firmware file and feeds back a firmware receiving result; S7, the upgrade terminal sends a check command to the embedded device and receives a second check result; and S8, the upgrade terminal sends an upgrade start command to the embedded device. The application has the advantage that the security of the embedded device firmware upgrade is greatly improved.

The embodiment of the invention provides a full generation cycle carbon data credibility verification method and system and related equipment, and belongs to the technical field of information security. According to the method, the data abstract about the carbon data from the data acquisition terminal is acquired, and the zero-knowledge certification technology is adopted to perform carbon data credibility rule verification on the data abstract to generate the certification file, so that the privacy of the carbon data authenticity verification process is improved. The proof file and the data abstract are sent to the trusted mechanism equipment for digital signature operation, so that a signature file from the trusted mechanism equipment is received, the signature file carries a timestamp and comprises the signed proof file and the signed data abstract, the credibility of the carbon data is improved, and the reliability of the carbon data is improved. And the signature file is stored in an immutable log system adopting a hash chain recording mechanism, so that the carbon data can be prevented from being tampered, and the carbon data interaction efficiency can be improved through a centralized storage mode.

The utility model belongs to the field of quick assembly, provide a portable installation structure and comb grass machine, including machine body, lithium battery, apron and turnover framework. Compared with prior art, the utility model's advantage lies in setting positioning portion and anti -drop portion at every lithium battery bottom, cooperation positioning slot and mounting groove in machine body, so that multiple lithium batteries can be automatically guided and abutted to positioning when assembling, realize quick, accurate positioning installation, significantly improve the assembly efficiency, apron and turnover framework are stacked along the vertical direction in turn, make full use of space, the overall structure is compact, form multistage mechanical pressure locking to lithium battery, effectively prevent lithium battery from loosening or falling off because of vibration or external force during use or movement, improve the safety and stability of equipment operation, the structure avoids the use of a large number of screws, improves the assembly and disassembly efficiency, provides the convenience for subsequent maintenance and replacement.

The embodiment of the utility model relates to the technical field of automobile parts, and discloses a mounting bracket and a vehicle. The second surface of the mounting plate faces the side wall metal plate, a conical hole penetrating through the first surface and the second surface is formed in the mounting plate, the large-diameter end of the conical hole faces the first surface, the connecting piece comprises a rod part and a conical head part matched with the conical hole, and the rod part penetrates through the conical hole from the first surface to the second surface and is connected with the side wall metal plate; the outer conical surface of the conical head part presses the inner surface of the conical hole, and the rotary connecting part is connected with the mounting plate. According to the mounting bracket provided by the invention, the channeling probability of the mounting bracket can be reduced, and the connection stability between the mounting bracket and the side wall metal plate is improved.

The utility model discloses a clamping device for detecting animal epidemic diseases, which relates to the technical field of animal detection and comprises a head fixing frame and a limiting component, a bottom frame is mounted at the lower end of the head fixing frame, and the limiting component for limiting the heads of animals with different sizes is arranged in the head fixing frame. And the limiting assembly comprises a limiting rod, positive and negative tooth lead screws, turbines, a worm and a holding rod, the positive and negative tooth lead screws are arranged at the upper end and the lower end of the limiting rod, the turbines are installed at the ends of the positive and negative tooth lead screws, the worms are arranged on the side edges of the turbines, and the holding rod is installed in the middle of the worms. According to the clamping device for detecting the animal epidemic diseases, the two sides of the head and the neck of an animal are limited through the limiting rods, the situation that the head of the animal turns back to attack detection personnel is avoided, the positive and negative tooth lead screw rotates to drive the two limiting rods to be close to or away from each other, and the limiting rods can limit the heads of animals of different body types; the worm is rotated to drive the turbine to rotate to provide adjusting power for the positive and negative tooth lead screw.

This utility model discloses an electronic lock, including a housing with a mounting position. The side wall of the mounting position has an unlocking groove and a locking groove. A driving device is fixed inside the housing. An unlocking rod is slidably disposed within the mounting position, with one end connected to a locking rod and the other end connected to the output end of the driving device. A mounting cavity is laterally provided on the unlocking rod, and an elastic telescopic device is embedded in the mounting cavity, with at least two ends partially exposed outside the mounting cavity. The exposed portions of the elastic telescopic device can be pressed into or ejected from the mounting cavity. The driving device drives the unlocking rod to move axially, causing the locking rod to switch between an unlocked position and a locked position. When the locking rod moves to the unlocked position or the locked position, both ends of the elastic telescopic device elastically engage with the unlocking groove or the locking groove, respectively. This utility model solves the problems of the locking rod springing back when locking, causing the charging gun to fall off, and the locking rod springing back when unlocking, causing the charging gun to be unable to be pulled out.

This invention discloses a hardware verification circuit for quantum telemetry and control link calibration and measurement results, belonging to the field of high-precision hardware technology for quantum telemetry and control. The circuit includes a link characteristic measurement unit, a parameter compensation storage unit, a hardware compensation controller, a hardware redundancy verification unit, and a calibration parameter storage unit with a one-time programmable fuse. All calibration rules and verification parameters are permanently fixed using the one-time programmable fuse and cannot be modified by software. This invention achieves full-dimensional calibration of the quantum telemetry and control link and hardware-level anti-tampering verification of measurement results through a pure hardware circuit, solving the problems of existing technologies where link calibration relies on software, accuracy is insufficient, and measurement results lack hardware-level protection. It can improve the synchronization accuracy and reliability of quantum telemetry and control results, and is suitable for various high-precision quantum telemetry and control scenarios.

The application discloses a fastener grinding device and relates to the technical field of fastener grinding. The fastener grinding device comprises a workbench, a grinding table, a belt rotating device and a pressing device are arranged on the workbench, the grinding table is configured to place a fastener blank, the pressing device is configured to press the fastener blank on the grinding table, and the belt rotating device is configured to drive the fastener blank to rotate so that the fastener blank is in contact with the grinding table and is ground; the workbench is further provided with a feeding device and a pushing device, the feeding device is used for conveying and placing the fastener blank on the grinding table, and the pushing device is used for pushing the fastener blank on the grinding table. The application can facilitate the grinding of the fastener blank.

The application provides a thermal management integrated module, a fault information reading method and system, and a vehicle. The thermal management integrated module comprises a plurality of electronic actuators, a controller and a memory. Each electronic actuator corresponds to a component. Each electronic actuator and the memory are in communication connection with the controller. The memory comprises: a dynamic message receiving and sending storage area, which is used for storing messages received and sent by each electronic actuator at a preset period during normal communication; a fault type counting area, which is used for storing the number of times that each electronic actuator is diagnosed as each preset fault type; and a fault frame storage area, which is used for storing the current communication frame at the moment of fault occurrence, subsequent continuous frame messages, a fault code and a time stamp when any electronic actuator fails. The application can realize centralized, faithful and safe fault information management of a multi-actuator thermal management system.

The invention relates to the field of intelligent operation and maintenance of power equipment, in particular to a transformer maintenance-free respirator control method integrating temperature, humidity and pressure monitoring and electric heating regeneration and a storage medium. The method comprises the following steps: firstly, deploying a sensor in the respirator, collecting humidity and internal temperature and pressure data of a drying agent, and obtaining accurate data after moving average filtering and temperature compensation; and the control module is combined with the data, a humidity threshold value dynamically adjusted along with the load rate of the transformer and a regeneration period to trigger the regeneration system to start. During regeneration, the electric heating piece heats the drying agent, the fan adjusts the rotating speed according to the real-time temperature and humidity to discharge steam, meanwhile, the moisture absorption capacity recovery rate is corrected by combining aging of the drying agent, and starting and stopping or temperature adjusting delay are conducted according to the standard condition. The process data is uploaded to the operation and maintenance cloud platform through the LoRa module encrypted by AES-128, and the platform analyzes the trend through weighted linear regression and gives an alarm; and operation and maintenance personnel optimize parameters according to the parameters and regurgitate a judgment link. Related programs are stored in the storage medium and can be executed by the processor to achieve the method, and support is provided for maintenance-free of the respirator.

This invention provides a heat treatment method for stainless steel reed wire, relating to the field of reed wire heat treatment technology. The vertical take-up device includes a support frame and a rail; a movable component is mounted on the rail, and a winding structure is fixedly mounted on the top of the movable component; a wire transfer drum is fixedly mounted at the bottom of the vertical shaft, and the reed wire body is spirally wound around the outside of the wire transfer drum; auxiliary structures are provided on both sides of the top of the support frame, and a guide component is fixedly mounted on the outside of the support frame; precise wire guidance is achieved through the upper and lower guide rollers of the guide component, and the wire is clamped and fed by the wire transfer drum and auxiliary rollers, preventing wire deviation, shifting, and tangling from the source; the auxiliary structure can adjust the clamping force on the reed wire body, ensuring constant tension, tight and uniform wire arrangement, and neat coiling during the winding process, facilitating subsequent transportation, straightening, and stamping processing, thus solving the problems of wire deviation and shifting.

The invention discloses a milling removal device for components of a photovoltaic module and a use method of the milling removal device. The milling removal device comprises an input mechanism, a transmission mechanism, a milling mechanism, a pressing mechanism and a guide mechanism. The input mechanism is matched with the conveying mechanism, stable feeding and conveying of photovoltaic modules are achieved, damage to the modules in the manual carrying process is avoided, the milling mechanism has the milling separation function and the scrap collection function, independent collection equipment does not need to be additionally arranged, the equipment structure is simplified, the downward pressing mechanism can prevent the photovoltaic modules from moving in the milling process, and the production efficiency is improved. The guide mechanism drives the milling mechanism to move horizontally, it is ensured that milling covers the whole area of the photovoltaic module, and the problems that existing equipment is uneven in milling and not thorough in separation are solved. All the mechanisms work cooperatively, the integrated process of feeding, conveying, positioning, milling and collecting is formed, the broken glass and silicon wafer removing efficiency is greatly improved, and a foundation is laid for follow-up battery panel and back panel recycling.

The application relates to the technical field of batteries, in particular to a battery module which comprises a shell, a battery cell assembly, a first supporting assembly, a circuit board and a stop member; wherein the battery cell assembly, the first supporting assembly, the circuit board and the stop member are arranged in the shell. The application provides a battery module, a stop member is arranged at the top of the integrated body of the battery cell, the supporting member and the circuit board, so that the battery cell module can be limited, the battery cell, the supporting member and the circuit board and the like can be effectively prevented from moving along the up-down direction during use, the battery cell and electronic components thereof can be protected from being damaged, meanwhile, the insulating material on the circuit board can be prevented from being abraded and failed. In addition, two first supporting members are additionally arranged between the circuit board and the battery cell, so that the relative movement between the PCB and the battery pack is limited, and the tab is prevented from being pulled and torn. In addition, heat dissipation fins are arranged between the battery cell assemblies, so that the battery cells are cooled, and the heat dissipation fins occupy small space.

The application discloses a kind of network unmanned aerial vehicle inspection achievement automatic back transmission and defect identification method, it is related to power distribution network inspection technical field.The purpose is to solve the problems of low efficiency, fault response lag, data transmission without security and defect identification relying on artificial in traditional manual inspection.The method comprises: unmanned vehicle carries unmanned aerial vehicle and hangar drives to parking point, unmanned aerial vehicle takes off and carries out inspection and collects achievement data;After unmanned aerial vehicle returns, unmanned aerial vehicle platform processes and transmits achievement data to unmanned aerial vehicle management platform;Management platform uses AI image recognition technology to identify defects in data, generates identification results;Finally, management platform synchronizes identification results to power grid digital brain platform, and is associated with equipment operating state storage.The application realizes the full-process automation and intelligentization of distribution network inspection, greatly improves the inspection efficiency and the accuracy of data processing, optimizes the fault response mechanism, and provides strong support for the intelligent operation and maintenance of distribution network line.

The invention provides a data delivery method, device, medium and system, and the method comprises the steps: determining a target privacy calculation protocol according to a data type and a privacy level before data delivery, or determining the target privacy calculation protocol according to the data type; binding a data use constraint, a privacy calculation parameter and a participant digital identity by adopting an intelligent contract; and according to the target privacy calculation protocol and the bound smart contract, constructing a data delivery application program, and executing the data delivery application program to complete data delivery, the data delivery application program being an application program matched with the data product type. The problem that in the prior art, a unified application program development standard is not formed, so that data delivery tools are fragmented, and compatibility is poor is solved.

The invention relates to the technical field of network analysis, in particular to an internet data analysis system and method based on cloud computing, and the system comprises a network analysis module, a digital-to-analog conversion module, a tone collection module, an audio verification module and a feature inspection module, the network analysis module is used for calculating verification intensity, the digital-to-analog conversion module is used for generating an analog audio file, and the analog audio file is used for verifying the verification intensity. The voiceprint collection module is used for verifying the audio according to the voiceprint features, the audio verification module is used for verifying the audio again according to the transaction information, and the feature inspection module is used for restoring the initial information at the receiving end. According to the method, the data is prevented from being obtained or tampered by unauthorized people, the transaction safety is improved, the time used in the transaction process is shortened, and the virtual transaction process is safer and smoother.

The utility model relates to the field of vehicle doors, and particularly discloses a novel vehicle door trough. Comprising a main body, a baffle is fixed in the main body, a mounting space is formed between the baffle and the bottom side wall of the main body, a buckle is arranged in the mounting space and comprises a rod part, and the rod part penetrates through the bottom side wall of the main body and extends below the main body. According to the novel car door sealing strip, the problem that the car door sealing strip moves in the positive Z direction is solved.

This invention provides a method, device, medium, and product for processing database plugins. The method includes: obtaining the script file of the database plugin; identifying program objects in the script file and extracting the program body; encrypting the program body using a pre-built encryption key to obtain an encrypted program body; replacing the program body in the corresponding program object with the encrypted program body to obtain an encrypted program object; preprocessing the pre-built encryption key and embedding it into the binary file of the database plugin; recording the mapping relationship between the identifier code of the encrypted program object and the storage location of the pre-built encryption key to obtain an encrypted plugin package. The program body in the database plugin is converted into ciphertext, so users can only view the ciphertext and cannot directly view the original code, thus preventing the exposure of the developer's core business logic and protecting the developer's technology.