222results about How to "Guaranteed authenticity" patented technology

The invention discloses a non-contact CPU (Central Processing Unit) card entrance guard reader comprising a radio frequency part, a 485 communication part, a security module part, a Wigan output and external control part, a power supply part, an external connection part, a microcontroller part and other parts. The non-contact CPU card entrance guard reader is internally provided with a PSAM (Pilot Symbol Assisted Modulation) card and applies security certification read-write mechanisms of the PSAM card and a CPU card. The CPU card entrance guard reader builds an integral and strict key management system by adopting the security certification of the PSAM card and the CPU card, sufficiently uses the security characteristics of the CPU card and comprises key systems of the CPU card and the PSAM card; after a key is input into the PSAM card, the key cannot be externally read, the PSAM card is inserted into card reading equipment, two-way validation is carried out through the PSAM card and the CPU card, a verified message is calculated through the participation of random data, and a same card is different every time when swiped on one equipment, therefore a counterfeit card is thoroughly prevented.

The specification provides an information supervision method and device, and is used for an information supervisor to supervise information provided by an information provider. The information supervisor and the information provider are set to be nodes of a block chain; the information supervisor obtains an encrypted information record issued by the information provider, wherein the encrypted information record is encrypted based on a key associated with a public key of the information supervisor; the encrypted information record is decrypted to obtain an original information record by using akey related to a private key of the information supervisor; and risk supervision processing is executed on the original information record based on pre-configured supervision rules.

The present invention discloses a self-flowing farmland underground drenching solution collecting device which belongs to the field for researching the environment science, agrology and plant nutriology. The device of the invention comprises an eluviation disk, a water-discharging pipe, a liquid-collecting pipe, a breathing pipe, a liquid drawing pipe, a sampling bottle, a buffering bottle and a vacuum pump; the eluviation disk is used for collecting the drenching solution; the liquid-collecting pipe is connected to the water outlet of the eluviation disk through the water-discharging pipe, the drenching solution in the eluviation disc can automatically flow into the liquid collecting tube; and the vacuum pump is used for extracting the drenching solution collected by the liquid-collecting pipe to the sampling bottle through the liquid drawing pipe under the buffering of the buffering bottle. Comparing with the prior art the invention has the characters of reasonable structure, convenient manufacturing, easy actualizing and the like, and the invention is especially suitable for monitoring the influence of the soil solutes of nitrogen, phosphor, agriculture chemicals and the like to the groundwater.

The invention discloses a transaction information verification method and a related device. The method is applied to the lightweight node, the light node stores a root node of the state tree, whereinthe state tree is used for storing state data of each user account in the block chain network; after receiving a to-be-processed transaction, a transfer-out party account and to-be-verified information corresponding to the transaction are determined, a target state data acquisition request related to the to-be-verified information is initiated to the total node,target state data and Merkle proof for verifying whether the target state data is true or not are obtained; according to the Merkle tree principle, only the root node of the state tree needs to be stored in the light-weight nodes, and when the target state data is verified, whether the target state data is real or not can be verified through the Merkle proof and the stored real root node. Therefore, for a lightweight node serving asan accounting node, the verification of the to-be-verified information can be completed only by storing the root node of the state tree without storing the state data of all the user accounts, and the real reliability of a verification result is ensured.

The invention provides a trusted platform module (TPM) based Modbus/TCP security enhancement method, and belongs to the industrial control field and the technical field of information. Security of an industrial control system concerns national security. In the existing security scheme, a problem of communication security certificate is not solved radically, and problems that a server is pseudo and secrete keys are stolen exist. According to the TPM-based Modbus/TCP security enhancement method, the idea of trusted computing is introduced, a TPM is added in a device, an identity authentication key of the TPM ensures that the identity of the device is trusted, and measurement information of an operating system and configuration software of the device ensures that the state of the device is trusted. With the participation of a trusted server, identity and state authentication of double parties is completed. Hash Item is added in a protocol format, so that the completeness of a message is ensured. TPM bound keys and authentication data PCR ensure the security of a key Kms in a generation process, and HMAC and the key Kms ensure the identity authentication of the double parties in a communication process.

The present invention discloses a fingerprint authentication method and a system. The method comprises an authentication step of generating a pair of keys according to the authentication request of a client, wherein the keys comprise a public key and a private key, a sending step of sending the public key to the client, a receiving step of receiving the encrypted data which is generated and sent by the client according to the public key, a decryption step of using the private key to decrypt the encrypted data to obtain decrypted data, and a matching step of matching the locally stored data information and the decrypted data. According to the fingerprint authentication method and the system, the stealing or interpolating of user data in a network transmission process can be prevented, and the safety and reliability of the user data in system certification are ensured.

The embodiment of the invention provides an identity authentication method, device and equipment based on a block chain, and the method comprises the steps that a first block chain node obtains a useridentity authentication request which comprises the biological feature information of a to-be-authenticated user and the to-be-authenticated identity information; the first blockchain node performs identity verification on the to-be-verified user through the first smart contract according to the user identity verification request to obtain verification result information; the first block chain node generates a user identity verification record through a second smart contract according to the verification result information, the biological characteristic information of the to-be-verified userand the to-be-verified identity information; and the first block chain node stores the user identity verification record in a block chain for evidence storage. According to the embodiment of the invention, the related information involved in the identity verification process can be stored in the block chain, and the true validity of the stored information is ensured based on the characteristic that the information in the block chain cannot be tampered.

The invention discloses a video evidence preserving and verifying method and device. The method comprises the following steps of obtaining video stream data from a video source; obtaining multiple key frames from the video stream data according to a sequence of video streams; for each key frame, obtaining the time for extracting the key frame, thus obtaining the time stamps of the key frames, wherein the time is time synchronized with a preset time source; calculating the data and the time stamps of the key frames through a preset hash algorithm, thus obtaining the hash values of the key frames, wherein the hash value of a first key frame is obtained by calculating the data and the time stamp of the first key frame and the video information of the video stream data through the preset hash algorithm; generating the verifying values of the key frames according to the hash values and the time stamps of the key frames, wherein the verifying value of the first key frame is generated according to the hash value and the time stamp of the first key frame and the video information of the video stream data; and correspondingly storing the key frames and the verifying values of the key frames.

The invention relates to a storage capacity predication method which comprises the following steps that S1, a formulary to be selected is acquired; S2, an original data sample is acquired; S3, a data sample is acquired; S4, the data sample is divided; S5, a training set is divided; S6, a predictor formula is selected; S7, parameter solving is carried out on the predictor formula; S8, predication is carried out through the predictor formula. The invention further discloses a storage capacity predication system which comprises a system management module, a storage resource real-time monitoring module, a storage data processing module, a predication model study module and a future trend predication module. According to the technical scheme, the storage capacity of IT resources can be accurately predicated, and therefore the resource utilization rate is improved, the failure rate is reduced, and operation and maintenance quality is improved.

The invention relates to a data evidence storage method and device, computer equipment and a storage medium. The method comprises the steps: obtaining to-be-stored data and a user certificate according to a data storage request when the data storage request is received; obtaining user signature data according to the user certificate and the to-be-stored data; sending the user signature data to a target blockchain node, wherein the user signature data is used for indicating the target blockchain node to perform consensus processing on the user signature data in a blockchain network to which thetarget blockchain node belongs. By adopting the method, the true reliability of the evidence storage data can be ensured.

The embodiment of the invention provides a testing method and device. According to the method, after data of a user is obtained through a terminal, a virtual testing environment is built in the terminal according to the data, and the data is tested in the testing environment. According to the method, it can be found that when testing personnel test various business on an online platform, the real data of the user can be tested in the testing environment built in the terminal, and the testing environment is a virtual environment built in the terminal so that the actual business of the user cannot be changed even if the real data of the user is tested repeatedly in the testing environment. In this way, by means of the method, it is ensured that the testing data is real and reliable, and meanwhile, it is ensured that the real data of the user in the actual business cannot be modified, the testing personnel do not need to utilize the testing environment to conduct switching of a calling path, and compared with the prior art, the loss brought to the user during testing can be avoided.

The invention relates to a strength and rigidity testing fixture for an aircraft draw bar. A front-end towing ring of a test piece is connected with one end of a main loading mechanism through a connecting pin, the main loading mechanism can slide freely in a guide rail of a slideway mechanism through a bearing per se, a fixed pulley I is arranged at the end part of the cavity of the slideway mechanism, two loading connectors in two directions are arranged at the other end of the main loading mechanism in the slideway mechanism and respectively connected two steel wire ropes, a rear-end connector of the test piece is connected with a simulative front undercarriage fixture, the steel wire ropes of the test piece bypass fixed pulleys II of load-bearing upright posts to be connected with a simulative main undercarriage fixture, and connectors adopting lug sheet forms at the tail end of the steel cable ropes can be directly connected with conventional fasteners. The testing fixture realize that the connecting mode and the strained condition of the test piece are consistent with the use state, the compression loading does not generate a lateral component force under the high-loaded condition, the occupied space is small, and the manufacturing cost is low. The test method is safe and reliable, the measured data are true and effective and the test efficiency is greatly improved.

The present invention discloses an encrypted keyword search-based bidirectional anonymity trusted network debit and credit system and method. The system is composed of a cloud matching platform and is communicated with a social platform and a guarantee platform to operate, the cloud matching platform matches a debit side and a credit side and analyzes the credit capability of the debit side, the guarantee platform is used to guarantee a financial transaction process, and the social platform is used to communicate with the cloud matching platform to obtain the acquaintance information data. The debit side is the initiator of a debit request, and the credit side is the provider of the credit fund. In the encrypted keyword search-based bidirectional anonymity trusted network debit and credit system of the present invention, the debit side does not need to publicize the personal information, and the system carries out the weighted calculation on the information provided by a user and the trust value obtained by the encrypted search on the social platform to obtain an acquaintance relationship index between the debit side and the credit side, thereby matching the debit and credit behaviors of the debit side and the credit side under the anonymity premise, and improving the privacy and the safety of the debit and credit behaviors.

The embodiment of the invention provides an agricultural product traceability storage method and traceability storage system based on a block chain, and the method comprises the steps: judging whethera video comprises agricultural product operation information of a target agricultural product through an agricultural product operation recognition model, and intercepting a video segment including the agricultural product operation information in the video if the video exists; when the agricultural product traceability information stored in the agricultural product traceability platform containsagricultural operation information, uploading the target information to the block chain network as a storage certificate. The whole process does not involve manual operation, the real reliability ofa block chain traceability system data source is guaranteed, effective data of video monitoring are efficiently utilized, and agricultural product traceability is more efficient and reliable.

The invention discloses a method for improving precision of numerically-controlled machine tool main shaft rotating thermal error measuring data. The method comprises the steps of conducting theoretical analysis calculation on thermal errors, generated by rotating of the main shaft, in the X direction and the Y direction of a main shaft, obtaining more accurate real thermal error data, avoiding the theoretical errors in the prior art, obtaining the real machine tool main shaft thermal errors in the X direction and the Y direction, and ensuring that a mathematic model built based on the data has the higher precision. According to the method, theoretical defects in a traditional numerically-controlled machine tool main shaft rotating thermal error measuring data processing method are overcome, the precise machine tool main shaft thermal error measuring data are obtained, the defects of large difference existing between compensation simulation precision of a model built based on the theoretical defect data and the real compensation power are overcome, the real effectiveness of numerically-controlled machine tool thermal error compensation modeling precision is ensured, the thermal error compensation function and thermal error compensation precision are enhanced, online accurate measuring data can be obtained through software programming, and the practicability is achieved.

The invention provides a webpage tamper-proofing device and a webpage tamper-proofing method based on access control and directory protection. The webpage tamper-proofing device comprises a client end and a service end, wherein security gateway equipment is arranged between the client end and the service end, the service end comprises a work end server and a protecting end server, the work end server and the protecting end server are connected in an interactive manner, the work end server is communicated with the client end, and directory protection service systems are respectively arranged inside the work end server and the protecting end server. The webpage tamper-proofing device and the webpage tamper-proofing method comprise two parts that 1, the access control is realized through the security gateway equipment, an internal website and an external website are separated, the access authority of users is determined, and the users are prevented from illegally accessing and modifying application system and data; and 2, the directory protection function is realized through the directory protection service systems, the real-time deletion and recovery is realized, and the real reliability of files is ensured.

The invention relates to the technical field of block chains, and discloses an electronic contract storage method and a device based on a block chain, and electronic equipment, and the method comprises the steps: obtaining an electronic contract original uploaded to a block chain network, and enabling the electronic contract original to be an electronic file obtained through the synthesis of an electronic contract and the electronic signature data of a signer; preprocessing the electronic contract original to obtain electronic contract original data; performing encryption processing on the electronic contract original data by using a preset encryption algorithm to generate a data fingerprint; broadcasting a contract number and a data fingerprint corresponding to the electronic contract original in the blockchain network to perform information verification; and if the information verification succeeds, adding the contract number and the data fingerprint to the blockchain maintained by each node in the blockchain network, so that the electronic contract original can be prevented from being disclosed, the confidentiality of the electronic contract original can be improved, the electronic contract original data corresponding to the data fingerprint can be prevented from being tampered, and the real reliability of the data fingerprint can be ensured.

The invention is mainly used for the optical fiber sensing temperature measurement field, and especially relates to a long-distance high-spatial-resolution Raman temperature measurement sensor and a realization method thereof. The long-distance high-spatial-resolution Raman temperature measurement sensor is characterized in that the long-distance high-spatial-resolution Raman temperature measurement sensor comprises an ultra-narrow-linewidth laser, a circulator, an acoustic-optic modulator, a reflector, a radio frequency generator, a 1*2 optical splitter (1:1), two wavelength division multiplexers, a Raman amplifier, an EDFA, two 2*1 couplers, a photoelectric detector, a signal processing and collection unit and a microprocessor unit. The beneficial effects are that the invention discloses the realization method of the long-distance high-spatial-resolution Raman temperature measurement sensor; the monitoring distance of the Raman temperature measurement sensor based on OTDR is generally smaller than 10 km, and spatial resolution is generally larger than 1 m; and the invention provides the realization method of the Raman temperature measurement sensor based on OFDR location technique, wherein the method can greatly improve measuring distance and spatial resolution index of the system, and the method can enable the monitoring distance of the Raman temperature sensor to reach 20 km, and spatial resolution index to reach the centimeter scale.

The invention discloses a source-tracing method for anonymous communication, which comprises the following steps of: sending a source-tracing inquiring request to an accessed access node by a node, and carrying an anonymous identity identifier in the source-tracing inquiring request; after the source-tracing inquiring request is received by the access node, inquiring a corresponding true identity identifier according to the anonymous identity identifier; and sending the inquired true identity identifier to the node. The invention considers that an IP (Internet Protocol) address can be dynamically allocated and can be juggled, and the source tracing of the IP address can not represent the positioning to a user; an AID (Application Identifier) is the true identity of the user, and wherever the user is located, the AID is unique, and the positioning to the AID is the positioning to the user; and an RID (Relative Identifier) is the position identifier of the user, an edge router accessed to the user is also identified, and the position of the user is inquired when the RID is positioned.

A security online detecting system facing to terminal computers performs a centralized detection on all the terminal computers in network on a center computer on line. The system comprises a online detecting tool, a packaging module and the center computer, the online detecting tool is packed as CAB form and stored in the center computer by the packaging module, and the CAB is embedded into the IE browser by the center computer, the CAB is downloaded from the center computer to the terminal computer through the IE browser and automounted, a user can input a project command which expected to be detected and input information corresponding to the detected project by the IE browser on the center computer, the received project command and the input information corresponding to the detected project are send to a security detecting unit by a unified data interface module of every terminal computer, and the security detecting unit starts strategy security online detecting or patch security online detecting or hardware resource information security online detecting or software security online detecting according to the project command, and then the detecting results are displayed by a display module.