4117results about How to "Guarantee authenticity" patented technology

The embodiment of the disclosure relates to block chain-based distributed storage, and discloses a block chain-based distributed storage method. The method includes: obtaining a file which needs to be stored, and generating a hash value and an index of the hash value for the file. The method also includes: recording the hash value in a block chain network, and storing the file in a distributed network, wherein the file is located on the basis of the hash value in the distributed network. Therefore, according to the embodiment of the disclosure, tampering proofing and the distributed storage of the file can be realized through combining a block chain and a distributed file system, thus the problem of the limited capacity of block chain nodes is solved, and the authenticity and the availability of the stored file are effectively guaranteed.

The invention discloses a method for constructing a financial asset trading system based on an alliance chain. With an alliance chain as a technical support, a novel financial asset digital unique certificate is provided based on the existing laws and regulations. The system uses a distributed technology architecture. All participants jointly maintain the ledger of financial asset trading. It is ensured that the trading of financial assets is open, transparent, real and credible. The credit risk of trading is reduced. The cross-platform and cross-region flow of financial assets is promoted. Tedious manual account checking work between platforms is omitted. In addition, the block chain technology is applied to the field of financial asset trading for the first time. A unified and standardized financial asset trading platform is established. Digital management of financial assets is realized. The credit risk of trading can be prevented effectively. The efficiency of trading and supervising is improved. The trading cost is reduced.

The invention discloses an identity authentication method, an identity authentication server and an identity authentication device. The method comprises the steps that the authentication server receives a biological characteristic authentication request sent by a client, returns challenges generated randomly to the client and receives a dynamic verification password sent by the client, wherein the dynamic verification password is generated by the client time when the challenges are received, the challenges, a biological characteristic of a user and a first seed key prestored in the client; the authentication server generates a dynamic password according to the time of the authentication server when the dynamic verification password is received, the challenges, the biological characteristic of the user and a second seed key; and the authentication server verifies whether the dynamic password is consistent with the dynamic verification password and returns an identity authentication result to the client according to a verification result. With the adoption of the identity authentication method, the identity authentication server and the identity authentication device, the safety of the dynamic password is ensured through the biological characteristic, and the authenticity and reliability of the identity authentication of the user are guaranteed.

The invention discloses a logistics tracking method based on a block chain. The method comprises steps that a user sending node uploads parcel information to a main node; the main node generates a digital fingerprint for the parcel information uploaded by the user sending node, writes the digital fingerprint and a corresponding time stamp into a block chain, broadcasts the block chain in all nodes; each logistics node generates parcel state information successively according to the digital fingerprint, the node information of the logistics node and the node information of a next logistics node in accordance with a parcel physical space transfer path; a corresponding user receiving node signs for the parcel, generates parcel receiving information and uploads the parcel receiving information to the main node in order for the main node to write the parcel receiving information into the block chain. The logistics tracking method applies the block chain technology to the logistics field, guarantees the traceability of the authenticity and the state of logistics information by using the unchangeable characteristic of the block chain, saves the logistics information and update state information fast and efficiently according to the characteristic of a private chain in order to satisfy a requirement for logistics instantaneity.

The invention discloses a consortium chain-based digital bill trading system construction method, which develops a brand-new bill display form, namely, a digital bill in combination with existing bill attributes, laws and regulations and market by taking a consortium chain as technical support. Compared with an existing electronic bill, the digital bill is totally different from the electronic bill in technical framework, not only has all functions and advantages of the electronic bill but also fuses the advantages of a block chain technology, and is a securer, more intelligent, more convenient and more promising bill form. In addition, the block chain technology is applied to the field of bill businesses for the first time; a unified standard bill trading platform is established; the problems of trade background forgery, bill authenticity authentication failure, paper bill multi-time selling, non-synchronous electronic bill discounting and bill endorsing, and the like are solved; and various risks are effectively managed, controlled and prevented.

The invention discloses an electronic document safe sharing system which can realize safe storage and fully sharing of secret document. The electronic document safe sharing system comprises a document encrypting module and a document decrypting module; wherein the document encrypting module utilizes a session key to symmetrically encrypt electronic document data, receiver identification (public key) is utilized to asymmetrically encrypt the session key, and finally the encrypted symmetric key and encrypted electronic document data are packed into a digital envelop; and the document decrypting module utilizes an own private key to decrypt the digital envelop. The electronic document safe sharing method of the invention takes CPK combined public key or CPK compound public key technology as the basis, flexible digital signature and secret key exchange capacity thereof are utilized, and a confidential document management system which is from a server to a client, contains information storage and transmission to each use link and is integrated with document data encryption, access control, authorization management, dynamic key exchange and process audit trail into a whole is constructed.

An address allocated to a user by an authentication server is used as an IP address of a packet which is transmitted from a user terminal, preventing an illicit use if the IP address were eavesdropped. An authentication server 100 performs an authentication of a user based on a user authentication information which is transmitted from the user terminal, and upon a successful authentication, allocates an address to the user terminal, and issues a ticket containing the address to be returned to the user terminal. The user terminal sets up the address contained in the ticket as a source address, and transmits the ticket to the application server 300, requesting a session to be established. After verifying that the ticket is authentic, the server 300 stores the ticket and establishes a session with the user terminal. The user terminal transmits a service request packet containing the source address to the server 300 utilizing the session. If the source address coincides with the address contained in the stored ticket, the server 300 provides a service to the user.

The present invention discloses a method and device for data processing based on a block chain. The method comprises: when a block chain node receives business data to be stored, determining the data attributes of the business data; if the data attributes of the business data is a text type, employing a preset private key in a public and private key pair corresponding to the user identification included in the business data to perform encryption processing of the business data; and if the data attributes of the business data is an image type, determining the abstract of the business data, and employing preset private key in a public and private key pair corresponding to the user identification included in the business data to perform encryption processing of the abstract. The features of decentration, openness and transparency, tamper resistance and dependability of the block chain technology are employed to employ different processing modes according to the data attributes of the business data to store the business data into the block chain network so as to ensure the business data authenticity and ensure that the business data is not tampered.

The invention discloses a district power network equipment abnormal alarm signal association analysis and diagnosis method in the field of automation of scheduling of electric power systems. According to the method disclosed by the invention, the weather situation of a plant station region at which abnormal alarm information is located can be automatically identified so as to determine the information processing mode. The method disclosed by the invention has the beneficial effects that by realizing intelligent association analysis and auxiliary decision making of the equipment abnormal alarm information under the real-time state, and performing playback on historical alarm information and performing real-time treatment on manual set information under the research state, the abnormal treatment time is greatly reduced, the incidence of accidents is reduced, a real-time, rich and intelligent auxiliary decision-making support is provided for regulation and control staff, and the safe, high-quality, economical and stable operation of an electric fence is further ensured.

The invention discloses a face image restoration method based on a generation antagonism network. The method comprises the following steps: a face data set is preprocessed, and a face image with a specific size is obtained by face recognition of the collected image; In the training phase, the collected face images are used as dataset to train the generating network and discriminant network, aimingat obtaining more realistic images through the generating network. In order to solve the problems of instability of training and mode collapse in the network, the least square loss is used as the loss function of discriminant network. In the repairing phase, a special mask is automatically added to the original image to simulate the real missing area, and the masked face image is input into the optimized depth convolution to generate an antagonistic network. The relevant random parameters are obtained through context loss and two antagonistic losses, and the repairing information is obtainedthrough the generated network. The invention can not only solve the face image repairing with serious defective information, but also generate a face repairing image which is more consistent with visual cognition.

The invention discloses a multifunctional remote medical care system based on multi-network fusion. The system involves the processes of registration from an entity to an authentication center, establishment of electronic medical record, data acquisition, remote diagnosis and information feedback; and a user terminal comprises a smart phone and a medical sensor. The smart phone comprises a data receiving processing module, a location-information acquisition module, an information querying processing module, a terminal safety module, a terminal communication module, a terminal storage module and a terminal UI (User Interface) module, wherein the medical sensor is provided with a wireless network interface and can be placed on a third medical sensor placed on the body of a user, a system server side comprises a server communication module, an information management module, a server-side safety module, a disease diagnostician system module, an information feedback module and an authentication center. The multifunctional remote medical care system based on multi-network fusion has the characteristics of rapid response, capability of detecting pathological changes in time, convenience and rapidness and the like, is easy for functional expansion, and has a greater upgrading function.

The invention discloses a shared vehicle management method comprising the following steps: obtaining vehicle information posted on a block chain by vehicle ends and intelligent contracts formed by thevehicle information, and sending the vehicle information and the intelligent contracts to a user terminal; receiving a vehicle sharing request sent by the user terminal according to the vehicle information and the intelligent contracts, obtaining a target vehicle and an intelligent contract corresponding to the vehicle sharing request, and sending the corresponding target vehicle and the intelligent contract to the user terminal; receiving service selection information sent by the user terminal according to the target vehicle and the corresponding intelligent contract, and determining whetherthe user terminal satisfies with the vehicle usage conditions or not; if yes, associating the vehicle end with the user terminal. The invention also discloses a server, a shared vehicle management system and a computer readable storage medium. The method and system can improve the trading efficiency, and can ensure the information authenticity and security.

The invention relates to a driving behavior assessment and vehicle driving state monitoring early warning system and method. The method comprises a video information collection unit, a video information processing unit, an identity information verification unit, a vehicle running state collection unit, an integrated information processing unit and an information management unit. The system constructs an assessment mechanism specific to driving behaviors, collects road condition video information, vehicle driving state information and driver vehicle operation process data information, excavates data characteristics, and performs weight distribution, information fusion and comprehensive determination, thereby realizing real time assessment of driving behaviors, and providing early warning specific to possible dangers.

The invention discloses an urgent collection method based on the credit score and an urgent collection device thereof. The urgent collection method comprises the steps of collecting urgent collection object credit information, processing the collected credit information, establishing a credit risk scoring model, predicting the overdue debt collection probability and performing the targeted urgent collection strategy. The risk level can be automatically judged according to the urgent collection score result so that the urgent collection strategy of the client can be reasonably determined, the urgent collection effect can be enhanced and the bad debt loss can be reduced. Data mining acts as the analysis technology so that the modeling time can be saved and the data support can be provided for the urgent collection industry. Besides, user information can also be updated in real time, the urgent collection risk score can be more accurately predicted, the most appropriate urgent collection strategy can be performed and the urgent collection task efficiency can be enhanced.

The invention provides a multiparty joint key production and digital sign method and system. A joint sign private key d is composed of m private key factors di. The i is equal to [1, m]. The m is greater than or equal to 3. The m private key factors di are produced by the joint parties independently and secretly when the private key is produced and are stored in own devices secretly. The joint digital sign is finished by the parties according to a certain sequence and is finished jointly through utilization of the secretly stored key factors di based on calculation. The system comprises m joint parties. Each joint party has an independent subsystem. Each subsystem is composed of three parts: a joint key production module, a joint sign first component calculation module and a joint sign second component calculation module. According to the method and the system, the multiparty joint key production and digital sign method of an SM2 cryptographic algorithm and various formed systems: acentric and centered systems are realized. The digital sign is no longer finished by a single individual and is finished by multiple parities jointly.

The invention discloses design and implementation of a multi-person indoor environment state monitoring system based on WiFi channel state information. According to the design and implementation provided by the invention, whether people come in and go out from a room is mainly monitored, and the number of people in the room is determined. According to the design and implementation provided by the invention, WiFi signals are applied to multi-person environmental perception for the first time, CSI (Channel State Information, channel state information) is obtained by use of the widely used WiFi signals, the CSI data are analyzed and processed, an effective denoising method is adopted to remove the environmental noise and extract the waveform, an indoor access monitoring model is established by using a hidden Markov method, a people number recognition model is established by using a neural network, and the people number recognition model is corrected by the access monitoring model, thereby further improving the people number recognition accuracy and effectively monitoring the indoor environmental state.

The invention provides a metadata based rapid statistic form generation method and system. The system comprises a metadata base management module and a report customization module, wherein the metadata base management module comprises an attribute metadata base definition unit, a measurement unit metadata base definition unit, a classified metadata base definition unit and a shared index metadata base definition unit; the report customization module comprises a report attribute definition unit, a template definition unit, an index definition unit, a report style definition unit, a management authority definition unit, an access definition unit and a preview definition unit. Through configuration of report structure rules, when a report structure changes, a report engine adjusts a report structure automatically according to changes, a new report is generated, and the flexibility of report customization is improved; a metadata management mode is adopted for managing index names and index attributes; when index names and index attributes change, all that is required is to modify metadata in the metadata base, and the surveying index customization mode is simplified.

The invention discloses a method for identity verification of a digital certificate based on a TEE (Trusted Execution Environment). The method comprises pre-configuration of a digital certificate system through a terminal, a digital certificate signature process and a digital certificate signature verification process. The method is characterized in that the terminal is provided with the TEE; the digital certificate signature process is carried out on the terminal and is used for utilizing a private key of the digital certificate to sign for a user request; the digital certificate signature verification process is used for authenticating identity of a requested user, and the authentication method comprises verification of validity and effectiveness of the digital certificate and integrity and correctness of the signature, wherein the digital certificate signature process is carried out under the TEE; the sensitive information, such as a user key, identity information, biological characteristic information and password information, is stored through a secure storage module, so that the problems that the signature process is carried out in REE and the sensitive information of the user is stored under the REE environment to cause privacy disclosure and stolen hidden danger of property in the prior art are avoided.

The invention discloses a processing method and a processing system for accurately recommending resumes. The method comprises the following steps of: establishing a member resume database and the recruitment information of an enterprise, setting whether vacant position requirements are necessarily met or not, and setting priorities; and sequentially performing accurate matching with key attributes of the job seeker resumes in combination with rules of matching the position requirements with the resumes according to whether the vacant position requirements are necessarily met or not and the priorities, and accurately pushing the job seeker resumes meeting the requirements to a recruitment group according to a matching degree sequence. By the method and the system, the recruitment group can accurately screen corresponding candidates, the recruitment efficiency can be improved, the recruitment cost can be reduced, and simultaneously, the job seeker resumes meeting the requirements may not be omitted.