79results about How to "Strong security" patented technology

A method for using authentication information is provided. The method includes steps of: (a) a managing server, if a request for using the authentication information is acquired, acquiring a transaction ID corresponding to a specific user's identification information; (b) the managing server acquiring an output of a specific transaction corresponding to the transaction ID from a blockchain; (c) the managing server determining revocation of the authentication information by referring to the output of the specific transaction; and (d) the managing server supporting a communication by providing the specific user's public key in the output of the specific transaction, if the authentication information is not revoked, and if (i) a hash value of the specific user's identification information included in the output of the specific transaction or its processed value corresponds to (ii) a hash value of the specific user's identification information pre-stored in a certain database or its processed value.

A graphical user interface supports an interactive client-server authentication based on Random Partial Pattern Recognition algorithm (RPPR). In RPPR, an ordered set of data fields is stored for a client to be authenticated in secure memory on the server side. A graphical user interface presents a clue generated at the server to the client, such positions in the ordered set of a random subset of data fields from the ordered set. The client enters input data in multiple fields of the interface according to the clue, and the server accepts the input data from the client. The input data includes storage units representing alpha-numeric characters, images and colors corresponding to the field contents for the data fields. The interface includes indicators for elapsed time and status of the authentication session.

The invention discloses a method for preparing graphene by chemical oxidation reduction, which comprises the following steps: preparing a graphene oxide water solution according to the concentration of 1-6 mg/ml from graphene oxide which is prepared from graphite by the existing chemical oxidation method; then, uniformly coating the graphene oxide water solution on a substrate by using a spin coating method or pouring method, and carrying out vacuum drying to form a graphene oxide film; and immerging the substrate coated with the graphene oxide film in a reducer water solution which is prepared from sodium hydrosulfite and sodium hydroxide according to the mass ratio of (1:2)-(1:6), carrying out reducing reaction at 50-80 DEG C for 12-20 minutes, washing with water to neutral, and drying to obtain a black graphene film. The sodium hydrosulfite used in the method disclosed by the invention is a mild, nontoxic and efficient reducer, is harmless to people and does not pollute the environment, thus the sodium hydrosulfite has the advantages of high safety and high reduction efficiency; and in addition, the sodium hydrosulfite has the advantages of low price and wide sources, thus the sodium hydrosulfite has wide industrial prospects and can be used for large-scale production of graphene products.

Provided is a two-actor user authentication system with a reduced risk of leakage of authentication information.

The two-factor user authentication system is designed to use, as a password, a one-time-password derivation rule to be applied to certain pattern elements included in a presentation pattern at specific positions so as to create a one-time password, and further use, as a second authentication factor, information identifying a client to be used by a user. An authentication server is operable to generate a pattern seed value adapted to uniquely specify a presentation pattern in combination with a client ID, and transmit the pattern seed value to an authentication-requesting client. The authentication-requesting client is operable to create a presentation pattern based on a client ID acquired therefrom, and display the presentation pattern to allow a user to enter thereinto a one-time password based on the presentation pattern.

The embedded information safety platform features the CPU micro controller as one network processing chip with ARM940T kernel containing real-time embedded operation system; enciphering and deciphering hardware chip comprising IPSec algorithm chip and symmetric algorithm chip; I/O interface including two 10/100 M adaptive Ethernet interfaces, one USB main control interface and one serial interface. The present invention is one opening hardware safety platform enclosed inside one casing and with relaxed application environment, powerful attack resistance and high reliability. The present invention has several enciphered algorithms, supports several kinds of application service, has high versatility, and may be used also in ciphering server, VPN ciphering gateway, SSL safety gateway, safety router, hardware fire wall and other safety devices.

The invention discloses a remote diagnosis method for a vehicle, and the method comprises the following steps: S1, transmitting a vehicle diagnosis triggering start signal to a server through a client; S2, transmitting a vehicle diagnosis triggering signal to a vehicle-mounted terminal after the server receives the vehicle diagnosis triggering start signal; S3, reading fault codes of a vehicle body electronic control unit one by one after the vehicle-terminal receives the vehicle diagnosis triggering signal, generating vehicle diagnosis raw data through all read fault codes of the vehicle body electronic control unit, transmitting the vehicle diagnosis raw data to the server, and transmitting the vehicle diagnosis raw data to a client after the receiver receives the vehicle diagnosis raw data. The method is simple and practical, and is high in safety.

The invention provides a protection method for side channel attack and fault attack. The protection method comprises the following steps of I. dividing operation of block cipher algorithm into a plurality of stages of pipelines; II. inputting real plaintext into two stages of pipelines selected at random, and inputting random number into other stages of pipelines; III. carrying out operation, and then comparing whether the operation results of the two real data are consistent after the operation is finished. The protection method can resist both side channel attack and fault attack, and has strong safety and high execution efficiency.

The invention discloses a method for implementing file evidence storage and authentication based on a blockchain. The implementation process is as follows: firstly, configuring a blockchain network; then, performing evidence storage: performing hash on an evidence storage file by using a hash algorithm to obtain a hash value, encrypting the hash value by using an asymmetric encryption algorithm, extracting evidence storage information as a data model, assembling an evidence storage data structure according to the data model, and writing the assembled data into the blockchain network; and finally, performing authentication: performing hash on the file by using the hash algorithm to obtain a hash value, querying evidence storage data on the blockchain according to the hash value, and verifying the signature. Compared with the prior art, the method for implementing file evidence storage and authentication based on the blockchain disclosed by the invention has the advantage of high security, and has the characteristics of data disclosure and prevention of tampering based on the blockchain technology; and the privacy is good, a source electronic file is not uploaded to the network andis only stored at a file owner.

The present invention belongs to the array signal processing field in communication technologies and relates to a beamforming-based dynamic direction modulation method. According to the beamforming-based dynamic direction modulation method, one-time integration is performed on an antenna through an algorithm, so that a group of antenna weights is obtained; antenna weights are not required to be re-calculated in different symbol periods, and it only needs to randomly change the sequence of the antenna weight data, and a group of antenna weights is selected from the antenna weight data so as to be subjected to integration, and therefore, low-complexity dynamic direction modulation is realized; and a direction modulation method is adopted to update array element weights so as to replace base band modulation. With the algorithm provided by the invention adopted, the security of dynamic direction modulation can be realized under a low-complexity condition.

The invention discloses a radio frequency identification (RFID) privacy authenticating method which comprises the following steps: system initialization: a reader-writer stores secret keys and indexesof all labels and a summary value of an index space; label recognition: the reader-writer transmits an authenticating request to the labels, the labels calculate and transmit authenticating information to the reader-writer, and reader-writer recognizes the labels after receiving the authenticating information; updating: after the labels are authenticated, the reader-writer updates the secret keysand the indexes of the labels and transmits updated information to the labels, and the labels update the stored secret keys and the indexes; and system maintenance: when the labels enter or depart from an RFID system, the reader-writer maintains the secret keys and the indexes of the labels. The invention can effectively resist various prior passive and active attacks; compared with an RFID authenticating method based on a balanced tree structure, the invention greatly reduces the storage and calculation cost at the label ends.

The invention relates to a method for manufacturing fuel through straw quick thermal cracking and a fuel product thereof. The method comprises the following steps: crushing straw materials; drying the crushed materials; carrying out thermal cracking of the dried materials; completing gas-solid separation of the thermal cracking products; condensing gaseous biomass oil; collecting low-boiling point biomass oil; and mixing and grinding biomass carbon obtained after gas-solid separation, condensed biomass oil, water and surfactant. The fuel product comprises the following components in percentage: 30 to 60 percent of the biomass carbon, 2 to 15 percent of the heavy biomass oil, 0.2 to 1 percent of the surfactant, and the balance of water. The method converts straw through quick thermal cracking and makes straw into the novel fuel product of the biomass oil, the biological carbon and the water; moreover, the method has the advantages of lower production cost, higher yield of biomass fuel and better control of quick thermal cracking conditions. The fuel product has the advantages that the product has high thermal value and low sulphur content and does not block up pipelines and burner nozzles frequently during combustion; moreover, the product has stable performance and is convenient for transportation and storage. Therefore, the fuel product can be widely used in thermal power plants, heating boiler rooms, and the like.

The invention discloses a preparation method and application of a novel edible moisturizing nutritional ointment, and belongs to the technical field of cosmetic processing. The preparation method comprises the following steps: treating abelmoschus esculentus, treating propolis, preparing a liquorice root extract, extracting ginkgo leaf flavonoids, preparing fibroin protein, preparing perilla oil, preparing pine seed oil, and preparing an emulsifying agent. The preparation method specifically comprises the following steps: by taking an emulsion matter as a basic emulsion material, adding deionized water, fully stirring, and then adding 1-5% of an abelmoschus esculentus polysaccharide refined product in percentage by volume, 0.1-1.0% of a propolis viscous substance in percentage by volume, 0.1-1.0% of the liquorice root extract in percentage by volume, 0.1-1.0% of ginkgo leaf flavonoids in percentage by volume and 0.1-2.0% of fibroin protein in percentage by volume to obtain the moisturizing nutritional ointment. According to the preparation method and application disclosed by the invention, the safe and edible novel moisturizing ointment can be prepared by using abelmoschus esculentus, propolis, liquorice root, ginkgo leaves, fibroin, perilla oil, maize embryo oil, wheat embryo oil and pine seed oil, and the moisturizing ointment is suitable for being applied to the exposed skin which easily contacts with foods.

The invention discloses a cloud storage data integrity detection method and system based on a blockchain, and the method mainly employs a lattice signature algorithm to sign a file at a user side, caneffectively resist the threat of quantum computing, and guarantees that a signature is not cracked. According to the method, the Merkel tree is constructed, the signature value of the file is aggregated into the Merkel tree and combined with the cuckoo filter, on one hand, the requirement of dynamic operation of the file can be met, on the other hand, a complex signature verification process is simplified into a simple cuckoo filter query process, and the verification efficiency is remarkably improved. And meanwhile, the block chain network is introduced to replace the traditional TPA, so that the situation that the TPA colludes with the other party can be effectively avoided, the transparency of the information is improved, and the security of the scheme is further improved.

Two or more electric heating electrodes are arranged orderly and in interval along axial line or in annular along cross section inside ceramic tube. Material of the ceramic tube is evenly mixed china clay and stuffing of current conducting fine particle. Preparing an insulated surface according to conventional method for manufacturing ceramic tube and embedding bus bar in advance or posting bus bar after makes electric heater unit. The electric heater unit could be solid rod shaped. The invention has advantages of good water resistance and insurability, high safety and high conversion efficiency of electric heating.

The invention relates to an open type gate inhibition illegal accessing alarm device. It posits first explorer at channel porch and posits card reader at channel's middle parts and posts second first explorer at channel exit. It also has a auto controller circuit which interlocks the reference power of second explorer and makes it at pre-alert state when first explorer has tested the signal of people entering at the porch, and makes it at armed state when card reader receives the legal ID signal, or keeps the armed state when card reader receives the illegal ID signal. The alarm or auto closed driving control end sends signal when second explorer identifies the signal of people entering and works to achieve the function of auto alarm or auto interception.

The invention belongs to the field of fan articles, and particularly relates to a USB water supplementing fan. The USB water supplementing fan comprises a fan body 1, and is characterized in that an atomizing port 2 is formed in the middle of the fan body 1 and is connected with a water storage box 4 at the bottom of the fan body 1 through a water guiding pipe 3, the top of the fan body 1 is connected with an atomizing button 5, and guiding plates 6 are arranged on the left side and the right side of the water storage box 4 and matched with a guiding groove 7 in the bottom of the fan 1. According to the USB water supplementing fan in the claim 1, the USB water supplementing fan is characterized in that the fan body 1 is provided with a USB wire inserting head 8, and a battery bin 9 is arranged on the back. The provided USB water supplementing fan has the beneficial effects that water in air can be effectively supplemented, moisture of the skin is kept, an air blowing system and an atomizing system are independent of each other, safety is high, USB and battery power supply is provided, and practicability is good.

The invention relates to a lockset of a motor vehicle, in particular to an electric burglar-proof lock of a vehicle. The technical problem to be solved is to provide a safe anti-dismantling electric burglar-proof lock. The electric burglar-proof lock comprises a mechanical lock part and a circuit lock part which are controlled by each other, wherein the mechanical lock part has an anti-dismantling match-box-type structure, a bolt penetrates through a lock case from the inside and is connected with the screwed holes of a lock head and a lock catch; and a lock shaft, a lock shaft transmission structure and an electric motor which are used as the drawer of the match-box-type structure to be fixed in the lock case by the lock head and constitute an anti-dismantling covering structure of the bolt. The electric burglar-proof lock of the technical scheme of the invention is safe and anti-dismantling, is convenient to use and can lock the electronic start circuits of wheels and the vehicle at the same time.

The invention belongs to the technical field of food processing and particularly relates to a tyrosinase inhibitor extracted from yellow wine lees and a preparation method of the tyrosinase inhibitor.The method comprises the following steps: 1) obtaining fresh yellow wine lees from a production line of yellow wine produced through normal fermentation or obtaining fresh frozen yellow wine lees; 2)drying the yellow wine lees with a drying machine, so that the water content is less than 10%; pulverizing the yellow wine lees with a pulverizer, so as to obtain uniform fine powder with the particle size of less than 40 meshes; 3) extracting the fine powder of the lees with a volatile solvent with no residual toxicity, so as to obtain solution containing fat-soluble extract; volatilizing remaining alcohol under a pressure reduction condition, so as to obtain light yellow paste extract. The tyrosinase inhibitor has important application value in the fields of food process and cosmetics and has the functions of saving resources and protecting environment.

The invention discloses an energy-saving environment-friendly flame-retardant architectural paint which comprises the following components in parts by weight: 30-50 parts of cement, 20-50 parts of paste ash, 10-25 parts of coal slag powder, 10-35 parts of POE (polyolefin elastomer), 10-36 parts of halogen-free expanded flame retardant, 10-14 parts of crystal II type ammonium polyphosphate, 11-16 parts of smoke suppressor, 11-21 parts of compatibilizer, 1-3 parts of hollow glass microsphere, 1-4 parts of graphite powder, 1-6 parts of kaolin, 1-9 parts of wood fiber (80-200 meshes), 3-8 parts of kieselguhr (80-180 meshes), 1-9 parts of film-forming assistant, 2-8 parts of acrylic emulsion, 3-7 parts of network interpenetrating emulsion, 1-6 parts of water-based dispersing agent BPS, 1-7 parts of magnesium hypophosphite and 1-3 parts of talcum powder. The invention has the advantages of high safety, high strength, favorable elasticity, light weight, heat preservation, heat insulation, sound absorption and radiation resistance, shortens the building cycle, improves the working environment, enhances the safety coefficient, and reduces the environmental pollution around the building area.

The invention relates to a database encryption method based on AES. Firstly, aiming at the database encryption problem, the shortcomings of the present database encryption such as low security, easy to crack, information leakage and the like are analyzed. Then, according to the encryption strength of AES encryption algorithm, the key length and key period can be set flexibly according to the attributes, which is difficult to crack. Finally, the method is used in database encryption to establish a set of database encryption method with strong security and great difficulty to crack. The invention provides a database encryption method based on an AES algorithm which is strong in security and difficult to crack. The encryption strength, the key length and the key period are set according to the data attribute by using the AES algorithm.

The invention discloses a folding structure of a saddle supporting seat. The saddle supporting seat is formed by symmetrically wedging a left cover plate and a right cover plate; a placing hole is formed in the cover plate; a spanner is arranged in the placing hole; a rotary fulcrum support at the lower part of the spanner is arranged at the bottom of the cover plate; the middle part of the spanner is provided with a steel wire rope hole; a plunger seat is arranged on a disc where the cover plate is rotationally connected with a cross beam; plungers are held in positioning holes of the plunger seat; the heads of the plungers are exposed out of the cover plate and can be inserted into fixed holes in a cross beam shaft seat; the two plungers distributed left and right on the saddle supporting seat are connected by a spring; the plungers are provided with traction holes; and after one end of a steel wire rope passes through the steel wire rope hole and is fixed on the spanner, the other end of the steel wire rope passes through the traction holes of the plungers and is fixed. The saddle supporting seat has the advantages of strict structure, strong safety, practicability and reliability; and a practical outfit is provided for production and use of a folding electric bicycle.

The externally used medicine for treating rheumatoid arthritis is prepared with moxa, garlic stem, Chinese chive seed, Yikouzhong, orientvine stem and largeleaf gentian root. The preparation processincludes pre-treatment of medicinal material, decoction, concentration of decoction, cooling, bacteria-free packing and other steps. Compared with orally taken medicine, the present invention has the advantages of less toxic side effect, no gastric reaction, high curative rate and others.

The invention discloses a scanning auxiliary tool automatically adaptive to a book archive. The scanning auxiliary tool comprises a V-shaped frame component and a book supporting plate component, wherein the book supporting plate component is arranged below the V-shaped frame component; the book supporting plate component can be moved on a horizontal direction; the V-shaped frame component can be moved along a perpendicular direction of the movement direction of the book supporting plate component; the V-shaped frame component can be inserted into the book supporting plate component in a perpendicular movement process; and the V-shaped frame component and the book supporting plate component are close and are parallel. The tool is simple in structure; by designing the reasonable structure, no matter how thick the book archive is or how high a binding line is, a scanner can carry out automatic scanning clearly and completely on the premise of not damaging a to-be-scanned material; the scanning quality is guaranteed, and the safety of a book is ensured.

The invention provides an identity recognition method, a modeling method and equipment. The method comprises the steps: obtaining a plurality of eye fundus images of the same eyeball of a user, and enabling the eye fundus images to be eye fundus images photographed at a plurality of different photographing angles; establishing a fundus blood vessel three-dimensional model by using the plurality offundus images; and identifying the identity of the user by comparing the fundus blood vessel three-dimensional model of the user with a pre-stored fundus blood vessel three-dimensional model.

The invention belongs to the technical field of mechanical engineering, and relates to a large-scale tilting casting machine. The large tilting casting machine comprises a base, a driving device, a transmission device, a tilting device and a mold positioning device; the driving device is connected with the transmission device, the transmission device is fixedly connected with the tilting device todrive the tilting device to tilt, and the tilting device is arranged on the base; the tilting device comprises a liquid metal container which is fixedly connected, and the mold positioning device isconnected with the tilting device; the mold positioning device makes an upper mold and a lower mold accurately positioned and coaxial with an outlet of the liquid metal container. By rotating a rotating body of the casting machine, metal liquid automatically flows into the molds so that the molds can be fully cooled and formed, the forming step is simplified, the operation is simple, and the safety is achieved.

The invention relates to the technical field of teaching equipment, and provides a special instrument box for chemical experiment teaching, which includes a box body and a box cover. The box body is equipped with a barrel groove, a retractable groove, a stepped groove, a straight pipe groove and a curved pipe groove, and the barrel groove There is a reaction barrel inside, a temperature sensor is set at the bottom of the reaction barrel, and a heating wire is set between the reaction barrel and the inner wall of the barrel tank; an activated carbon filling layer is set on the inner surface of the retractable tank; a sealing plug is set in the stepped tank, and a tube hole is set on the center line of the sealing plug ;The inner surface of the box cover is provided with a display, a transparent card bag and a stirring rod slot; the two sides of the display are provided with temperature setting buttons, the temperature sensor is connected to the microprocessor, the microprocessor is connected to the display, the temperature setting button and the control module, and the control module is connected to the electric heater Silk; the lower edge of the rear end of the box cover is connected to the box body through a hinge, and the lower edge of the front end is connected to the box body through a lock ring and a mechanical lock. The present invention improves the safety of chemical experiment teaching and facilitates the management and storage of chemical experiment equipment and reaction raw materials. Can provide more perfect chemical reaction conditions.

The invention discloses a risk avoiding table and chair. The risk avoiding table and chair comprises a tabletop, and a drawer plate is arranged below the tabletop; supporting leg plates are fixedly welded to the two sides of the lower end of the tabletop; the supporting leg plates are of a rectangular plate-shaped structure, guide holes are formed in the surface of the drawer plate, the supportingleg plates movably penetrate through the guide holes, sponge cushions are fixedly arranged on the lower surfaces of the drawer plates, air bag grooves are formed in the sides, close to each other, ofthe two supporting leg plates, and upper hinge plates and lower hinge plates are arranged above and below openings of the air bag grooves respectively. The risk avoiding table and chair can be quickly combined together, and a student can be accommodated in the table and chair; the table and chair is made of high-strength alloy and can resist the falling pressure of a wall body; the air bag is arranged in the table and chair, the internal space can be wrapped rapidly after the table and chair is impacted, safety is high, and an exhaust hole is reserved to guarantee breathing; and the GPS positioning chip is arranged in the table and chair and has a positioning function, and when the GPS positioning chip is activated, the accurate distance can be sent to the other end, so that the GPS positioning chip is convenient for search and rescue.

The invention provides a modular assembled switchgear, which includes a first cabinet body and a second cabinet body; the upper end of the first cabinet body is fixed with a rain shield through a connecting plate; the lower end of the fixed frame is inserted into the second cabinet body. In the second cabinet; the inner side of the filter plate is inlaid with a fixed mounting frame; the mounting frame is installed between the first cabinet and the second cabinet, and a cooling fan is installed inside, and its upper part is connected to a wiring hole; the top The inner side of the heat dissipation hole is provided with a wire hole; the wire hole is opened in the middle wall of the first cabinet body and the second cabinet body; the bearing plate is horizontally connected in the movable block; In the inner walls of the left and right sides of the second cabinet body; the adjustment protrusions are inserted into the adjustment holes; the adjustment holes are set in multiple inner walls on both sides of the second cabinet body, and are arranged between the chute; The fixed block is welded and fixed on the left and right inner walls of the second cabinet; the invention has simple structure, simple and convenient assembly and disassembly, and strong practicability.

The invention discloses a buried cable with a reserved branch port and a manufacturing method thereof, the cable including a backbone cable, the backbone cable comprises a conductive core, an insulating protective layer, a shield layer and an outer protective layer, the U-shaped connecting wire clamp formed by the corresponding aluminum plate and the rod body can be more matched with the corresponding U-shaped card and the corresponding tedious steps are saved and formation of branch ports is accelerated; the U-shaped wire clamp design is convenient for injection molding together with the backbone cable in the later stage, which is fast and convenient, and safe; the cable is compact and reasonable in structure design, and has strong creativity, and is suitable for popularization.

The invention relates to an impact testing machine for a deck chair handrail. The impact testing machine includes a pedestal component, a stand column component and a loading component; according to the impact testing machine for the deck chair handrail, a handrail fatigue test and a seat impact test of a deck chair are combined together, thus being capable of greatly reducing test cycle, furthermore, the impact testing machine for the deck chair handrail has certain adjustability that can meet test requirements of different specifications of deck chairs or seats; the impact testing machine for the deck chair handrail has the advantages of being strong in safety and convenient and quick to detect, and can be applied to detecting different specifications of seats with handrails.