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38results about How to "Verify consistency" patented technology

Construction verification method and device capable of verifying security two-dimensional code offline

Embodiments of the invention provide a construction verification method and device capable of verifying a security two-dimensional code offline. The method comprises the following steps of inputting information that needs coding and type information, carrying out digital signature operation and encryption operation on the input information according to an information release type, constructing combination information, and encoding to generate a security two-dimensional code which can be verified off-line according to a two-dimensional code coding rule; inputting the information of the security two-dimensional code and identifying included combination information and type information, analyzing and decoding the combination information to obtain independent sub-information according to the type information of the two-dimensional code, and verifying digital certificate effectiveness information, a digital signature of the input information and an effective time limit of the input information; and if all verifications pass, showing that the offline verification of the security two-dimensional code is correct and the coding information source of the security two-dimensional code is credible, otherwise showing that the information release source of the security two-dimensional code is incredible. The method and the device have the beneficial effects that the security two-dimensional code cannot be tampered, counterfeited and denied, the public or private information can be released, and the integrity of the information of the security two-dimensional code and the authenticity of the source can be verified offline without a network connection.
Owner:王栋

Method and device for verifying uniformity of data

The invention provides a method for verifying uniformity of data, and is applied to duplicate data of distributed storage. The method for verifying uniformity of data is characterized by comprising the following steps of acquiring a request for verifying the uniformity of the duplicate data included in a designated data set, and sending a request for acquiring the check code of each of fragmented data and the secondary check codes of the duplicate data to each storage node which stores the fragmented data of the data set, wherein the secondary check codes are obtained through a predetermined algorithm by using the check codes of all the fragmented data; receiving the check code of each of the fragmented data and the secondary check codes of the duplicate data which are transmitted by each storage node, calculating secondary check verification codes through adopting the same algorithm as the predetermined algorithm and the received check codes of all the fragmented data of the data set, and judging whether or not the duplicate data included in the data set has uniformity according to the secondary check verification codes and the received secondary check codes of the duplicate data. According to the method for verifying uniformity of data, the effect that the efficiency of data uniformity verification is improved can be achieved.
Owner:ALIBABA GRP HLDG LTD

Method and system for validating chip validity by utilizing graphical chip

ActiveCN102375941AFacilitate automatic identification and managementVerify legitimacyInternal/peripheral component protectionComputer securityApplication software
The invention relates to a system and method for validating the chip validity by utilizing a graphical chip. The system comprises an identifier generation module, a graphical identifier identification module and an identifier validation module. The method for validating the chip validity comprises three basic work flows, namely a graphical identifier generation flow, a graphical identifier identification flow and a graphical identifier validation flow. When validating the chip validity, a user uses the graphical identifier on an identification chip of the graphical identifier identification module, and the graphical identifier is reduced into a verification identifier, the verification identifier is transmitted to the identifier validation module, the identifier validation module compares the verification identifier with an internal identifier which is saved in a chip, the graphical identifier of the chip is falsified if the validation identifier is not in accordance with the internal identifier, and the user can determine whether the chip is counterfeited or illegal or not and further forbids the user to download an application program; and the chip is legal if the validation identifier is in accordance with the internal identifier.
Owner:NATIONZ TECH INC

Intelligent card system man-in-the-middle attack verification platform and test method

The invention relates to an intelligent card system man-in-the-middle attack verification platform and a test method. One end of the verification platform conducts communication with an intelligent card, and the other end of the verification platform conducts communication with a card reader. A control management module is arranged in the verification platform and used for loading an attack test program and storing and processing instructions and responses sent by the card reader and the intelligent card. By the adoption of the intelligent card system man-in-the-middle attack verification platform of the structure and the test method, the uniformity of an intelligent card system design scheme and the practical running process can be verified, and authenticity and effectiveness of a security evaluation result is guaranteed; the evaluation result has higher persuasion and authority; due to the fact that a middle attack needs to be executed actually, cost of the man-in-the-middle attack can be quantified effectively and accurately, the ability of an intelligent card system in resisting the man-in-the-middle attack can be evaluated accurately, and thus the security level of the intelligent card system to be tested is confirmed.
Owner:THE THIRD RES INST OF MIN OF PUBLIC SECURITY

Station design mode-based air particulate matter automatic film-changing sampling device

The invention belongs to the technical field of sampling air particulate matters, and particularly relates to a station design mode-based air particulate matter automatic film-changing sampling device, which comprises a film feeding mechanism, a collection mechanism, a manipulator, a storage mechanism and a filter film jacket; the film feeding mechanism is fixedly arranged on a supporting plate and comprises a film feeding box body, an upper film feeding through hole and a lower film feeding through hole are respectively formed in the upper part and the lower part of the film feeding box body, the filter film jacket is arranged in the lower film feeding through hole and consists of a filter film clamp and a film tube, a filter film is fixed by the filter film clamp and stored in the film tube, a film feeding linear motor is fixedly arranged on the lower part of the lower film feeding through hole, a film feeding tray is fixedly arranged on the upper part of the film feeding linear motor, and the film feeding tray penetrates into the film tube and is matched with the filter film clamp. The device can continuously work for 7 days or 15 days, and compared with the single-film sampler, not only can a great deal of manpower output be reduced, but also the possibility of making errors during frequent operations can be decreased.
Owner:TIANJIN TONGYANG TECH DEV

Three-dimensional planning method for green mine based on three-dimensional real scene

ActiveCN112069571AReliable Qualitative and Quantitative AnalysisAccurate Judgment of SuitabilityGeometric CADDesign optimisation/simulationComputer-aidedComputer Aided Design
The invention provides a three-dimensional planning method for a green mine based on a three-dimensional real scene. The method comprises the following steps of conducting three-dimensional modeling on an original real scene of the mine; converting two-dimensional mining design files into three-dimensional mining design files by computer-aided design software; using three-dimensional geographic information platform software to fuse the mine original live-action model and the mine exploitation three-dimensional design model in a partitioning and staging manner; fusing a greening design file with a mine zoning and staging mining model; in combination with the mapping relation table of re-greening project amount and the cost, calculating re-greening project amount and the cost of each stage of mining; according to the re-greening budget of the mine, judging whether the re-greening work amount and cost of each stage of mining are reasonable or not; and obtaining a three-dimensional planning scheme of the green mine. The technical problems that a virtual scene constructed by adopting a virtual reality method is difficult to express an objective real scene, accurate quantitative analysiscannot be carried out, and a decision maker cannot accurately judge whether a mining planning scheme is suitable or not can be solved.
Owner:CHONGQING JIAOTONG UNIVERSITY

A method and device for verifying data consistency

The invention provides a method for verifying uniformity of data, and is applied to duplicate data of distributed storage. The method for verifying uniformity of data is characterized by comprising the following steps of acquiring a request for verifying the uniformity of the duplicate data included in a designated data set, and sending a request for acquiring the check code of each of fragmented data and the secondary check codes of the duplicate data to each storage node which stores the fragmented data of the data set, wherein the secondary check codes are obtained through a predetermined algorithm by using the check codes of all the fragmented data; receiving the check code of each of the fragmented data and the secondary check codes of the duplicate data which are transmitted by each storage node, calculating secondary check verification codes through adopting the same algorithm as the predetermined algorithm and the received check codes of all the fragmented data of the data set, and judging whether or not the duplicate data included in the data set has uniformity according to the secondary check verification codes and the received secondary check codes of the duplicate data. According to the method for verifying uniformity of data, the effect that the efficiency of data uniformity verification is improved can be achieved.
Owner:ALIBABA GRP HLDG LTD

A Mechanism Consistency Method for Accelerated Testing of Nitrile Rubber Based on Failure Physics

The invention provides a method for verifying the consistency of mechanisms involved in accelerated testing of butadiene-acrylonitrile rubber based on failure physics. The method comprises the following steps: 1, carrying out a thermo-oxidative aging experiment on the butadiene-acrylonitrile rubber; 2, subjecting an aged sample to a compression stress relaxation test, an infrared spectroscopic test and a thermal analysis test; 3, analyzing the test results of the compression stress relaxation, infrared spectroscopy and thermal analysis of the aged sample; and 4, verifying the consistency of mechanisms involved in accelerated testing of the butadiene-acrylonitrile rubber by using analysis results. According to the invention, the method analyzes and verifies the consistency of mechanisms involved in accelerated testing of the butadiene-acrylonitrile rubber by combining related experimental data of the compression stress relaxation test, infrared spectroscopic test and thermal analysis test, overcomes the problem of how to determine whether degradation mechanisms have abruptly changed due to too high acceleration stress during designing of an accelerated test, guarantees the consistency of failure mechanisms during accelerated testing and is of great practical significance to designing of accelerated tests of the butadiene-acrylonitrile rubber and guaranteeing of validity of experimental data in the future.
Owner:BEIHANG UNIV

Off-line verifiable secure two-dimensional code structure verification method and device

Embodiments of the present invention provide a verification construction method and device capable of offline verification of a safety information tag, comprising: input information to be encoded and type information, perform a digital signature operation and an encryption operation on input information according to an information release type to construct combined information, and encode according to an information tag encoding rule to generate an offline-verifiable safety information tag; input safety information tag information and identify the combined information and type information comprised therein, analyze and decrypt the combined information according to information tag type information to obtain independent sub-information, and verify digital certificate validity information, a digital signature of the input information and valid time limit of the input information; if the verification succeeds, the safety information tag is correct in offline verification, the encoding information source of the safety information tag is credible, otherwise the information release source thereof is incredible. The safety information tag of the present invention is tamper-resistant, unforgeable and undeniable, can release public or private information, and can verify information integrity of the information tag and whether the source thereof is real or not offline without network connection.
Owner:王栋

Compressor stall test structure and test method based on dynamic pressure measurement

The invention provides a gas compressor stalling test structure based on dynamic pressure measurement. The gas compressor stalling test structure comprises a gas compressor volute, a gas compressor impeller, a gas compressor back disc and sensors; the gas compressor volute is fixed to the gas compressor back disc, the gas compressor impeller is fixed to a rotating shaft, the rotating shaft and the gas compressor back disc are matched through a sealing structure, and the rotating shaft is connected with a bearing base; a plurality of sensor bases where the sensors are installed are distributed in the middle portion of the side wall of a pressure expander of the gas compressor back disc in the circumferential direction; and the sensors are high-frequency response dynamic pressure sensors, and pressure testing holes are formed in the sensor bases. The gas compressor stalling test structure has the advantages that based on the wall face static testing means easy to achieve and implement, the multiple dynamic pressure test sensors are distributed on gas compressor static pieces in the circumferential direction, change features of the wall face static pressure along with time are obtained, stalling generation conditions and features of the centrifugal gas compressor are captured, and prototype gas compressor stalling testing is completed with smaller investment.
Owner:CHINA NORTH ENGINE INST TIANJIN
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