460results about How to "Improve privacy protection" patented technology

A system and method uses wireless communication devices as beacons to determine the relative location of another target wireless communication device. The beacons transmit identifying information that the target device can use to determine the identity of the beacon. The target device can measure the received intensity of the beacon transmissions and determine an associated beacon that best satisfies a specified criteria (e.g., largest signal strength) using a procedure of the present invention that discriminates between multiple beacons.

The invention belongs to the technical field of wireless communication networks, and discloses a federated learning information processing method and system, a storage medium, a program, and a terminal. A parameter serve confirms a training task and an initial parameter and initialize a global model. The parameter server randomly selects part of participants to issue model parameters, encrypts themodel parameters and forwards the model parameters through the proxy server; the participants receive part of parameters of the model and cover the local model, and the model is optimized by using local data; the participant calculates a model gradient according to an optimization result, selects a part of the model gradient for uploading, adds noise to the uploading gradient to realize differential privacy, encrypts the uploading gradient and forwards the uploading gradient through the proxy server; the parameter server receives the gradients of all participants, and integrates and updates the global model; and the issuing-training-updating process of the model is repeated until an expected loss function is achieved. According to the invention, data privacy protection is realized; the communication overhead of a parameter server is reduced, and anonymity of participants is realized.

The invention provides a method and a system for processing factoring information based on a blockchain. The method for processing the factoring information comprises the following steps: receiving afactoring request transmitted by a user; forming a corresponding factoring smart contract according to the factoring request; identifying user information related to the factoring smart contract on the blockchain; carrying out endorsement verification on the factoring smart contract by an endorsement verification node corresponding to the user information, on the blockchain; when the factoring smart contract passes the endorsement verification, changing ownership information corresponding to the factoring request by the factoring smart contract. The method and the system for processing the factoring information based on the blockchain, provided by the invention, provide fidelity and traceability of service data for all parties participating in factoring service by applying the characteristics of non-deletability, temper resistance, multi-maintenance, account book sharing and the like of blockchain data. Besides, the fulfillment of factoring service is finished by the factoring smart contract, service data cannot be tempered, and the difficulty of information mutual recognition of all the parties participating in the factoring service in the prior art is overcome.

The invention discloses a depository receipt application transaction system based on blockchain, and relates to the technical field of blockchain. The system comprises a user blockchain platform, a main blockchain platform, and a processing module. The user blockchain platform comprises at least two user units and a supervision unit, and each user unit comprises an expenditure item subchain and anincome item subchain, wherein the expenditure item subchain is used for storing a depository receipt document generated by a user, and the income item subchain is used for storing the depository receipt document received by the user. The supervision unit is used for the backup of the depository receipt documents stored in all user units. The main blockchain platform comprises a first main chain and a second main chain, wherein the first main chain is used for storing the subchain state information of each user unit, and the second main chain is used for storing the address of each user unit.The processing module is used for comparing whether the Hash values of the subchains of the user units are the same as a Hash value stored in the first block chain at any time or not. According to theinvention, the processing performance of the system is not limited by the number of users, and a problem that data is rapidly expanded is solved. The system has a good privacy protection function, and can effectively prevent the document data from being tampered.

The invention is suitable for the field of mobile terminals, and provides a user login/switching method and a user login/switching system, and a mobile terminal. The method comprises the following steps of: entering into a user login interface or a user switching interface according to a received login or switching instruction; acquiring user face information, and extracting characteristic data of the face information; and judging whether the characteristic data are matched with preset characteristic data, if so, entering into a user mode, otherwise, entering into a visitor mode. By the method, a user can enter into a use mode corresponding to the preset characteristic data by acquiring the face characteristic data, so that user login or user switching is convenient and easy.

The invention discloses a fingerprint and password combined type verification method and a device thereof. The fingerprint and password combined type verification method and the device thereof are used in an electronic device with a touch screen, and the touch screen has the fingerprint recognition function and the touch recognition function at the same time. The method includes the following steps that an input keyboard which is provided with a plurality of virtual keys is displayed, and if an input password is the same as a pre-stored password and each fingerprint for operating the virtual keys is matched with a corresponding pre-stored user fingerprint, verification is successful. By means of the fingerprint and password combined type verification method and the device thereof, cracking verification difficulty is greatly increased, and privacy protection to the electronic device is improved; the practicability of the method is almost the same as the practicability in an existing mode, under the condition that user difficulty is not increased, the password cannot be cracked by others easily, and hence the confidentiality which is far higher than that of an existing verification mode is achieved.

Methods, apparatus and system to access personal data of a consumer (generated when said user is operating with a first service provider) by a second service provider, maintaining the privacy of the consumer. The proposed invention allows accessing data belonging to a certain consumer (for example, data generated when using a certain telecommunications service) by another entity providing services to the user (for example a bank) without sending the personal identification of the consumer. The proposed invention adds more flexibility, saves resources and increases scalability, efficiency and privacy.

The invention discloses a wireless local area network intrusion detection system based on deep learning, and relates to the field of network space security. The system comprises model learning and intrusion detection, the model learning is responsible for pre-constructing an RNN neural network, and intrusion detection uses the constructed RNN neural network to complete an intrusion detection taskin real time. An LSTM recurrent neural network is adopted to carry out classification prediction on data traffic of a wireless local area network with a time sequence characteristic; the type of the target network traffic sequence is judged according to the output predicted by the identification module; The intrusion behavior in the target network is identified, different granularity processing isperformed according to the set priorities and processing methods, early warning and prevention are performed on possible information security problems, the confidentiality, the usability and the integrity of the wireless local area network are guaranteed, and the security level of the wireless local area network is improved.

Vehicle onboard safety systems against deception during driving-under-influence (DUI) test, using cheiloscopy sensor or bite mark sensor as biometrics have been invented. The systems have an engine interlock system, which controls the engine ignition based on the onboard DUI testing result. The systems also have a smart phone locker designed to take the smart phone away from the driver in order to avoid any driving distraction, while allowing connection to external network and resource through tethering.

A secure method, apparatus or computer program incorporates a method for entering private information such as a user identifier, password or other secret code comprising at least one symbol or character. According to method in one illustrated embodiment, the user selects characters for input starting from presentation of an initial suggested character, moving under user control to presentation of a user's desired input character, and then followed by the selection by the user of that presented character as a character for data input. The method includes randomizing the timing of the display and/or reaction time to user input so that the number and timing of the key presses required to select any specific desired character for input is made unpredictable. This makes it difficult during entry of information to determine by covert means what specific information is being entered.

A method and system for bringing together online and offline advertising uses anonymous links that are associated with consumer data. The anonymous links allow processing without personally identifiable information (PII) in a secure environment. Data is matched using the anonymous links, and further using identifiers that are encrypted for use in connection with individual match distribution partners. The method and system allows a marketer to utilize offline data to precisely target advertisements without the use of PII, and to perform analytics concerning the use of the online advertisements to more precisely determine the effectiveness of multichannel marketing efforts.

A mobile node (400) capable of establishing an ad hoc network routing is disclosed. The mobile node comprises a transmitting/receiving unit (426) for communicating with other communication unit and a routing request generator (422) for generating a routing request message for requiring an ad hoc network routing. The mobile node further comprises: an address storage (427) for storing an address of the mobile node (400) and an address of a receiving node; a random number generator (430) for generating a random number; a certificate issuing unit (440) for issuing a certificate of the mobile node (400); a digital signature creator (450) for creating a digital signature of the mobile node (400); and a controller (424) for transmitting/receiving the routing request message accompanied by the address of the mobile node, the address of the receiving node, the random number, the certificate and the digital signature via the transmitting/receiving unit, according to an ad hoc network protocol.

The invention relates to a system for authenticating electronic prescriptions, the system comprising an acquisition unit for acquiring an electronic prescription for authentication, the electronic prescription comprising a transaction number, a first pseudonym, and a signature of a first participant using a transaction pseudonym, the first pseudonym indicating the first participant's registration at a first privacy officer; a generation unit for generating the transaction pseudonym based on the first pseudonym, the transaction number and a registration key corresponding to the first pseudonym and being shared between the first participant and a second privacy officer; and a validation unit for verifying the first participant's registration at the second privacy officer and the authenticity of the signature based on the registration key and the transaction pseudonym. As the transaction pseudonym depends on registrations at two privacy officers and a transaction number for a real-time prescription, the participant's privacy can be well protected from each privacy officer.

The invention discloses an intelligent storage cabinet, which comprises a cabinet body, wherein a man-machine interaction control unit and an access opening are formed in the cabinet body; a carrying and collecting plate is arranged on the access opening; a base, a support post, a plurality of horizontal support platforms, a plurality of storage boxes, a driving device, a support plate, an ascending and descending device, a push-pull device and a power distribution box are arranged in the cabinet body; an annular guide groove and a plurality of storage boxes are arranged on each horizontal support platform; the support plate is arranged on the ascending and descending device; an auxiliary guide groove is formed in the support plate; the push-pull device is arranged at the bottom of the support plate; the driving device is arranged on each horizontal support platform, and is used for driving the plurality of storage boxes to slide along the annular guide groove and the auxiliary guide groove; the man-machine interaction control unit, the driving device, the ascending and descending device and the push-pull device are electrically connected with the power distribution box; the driving device, the ascending and descending device and the push-pull device are connected with the man-machine interaction control unit. The intelligent storage cabinet has the advantages that the automatic finding can be realized; the storage boxes to be accessed can be automatically conveyed to the access opening position; the accessing is convenient and safe.

The invention discloses an intelligent traffic path planning method based on federated learning and digital twinning. The method comprises the following steps of: S1, carrying out vehicle registration in a vehicle system, and verifying the identity information of vehicles; S2, according to the local historical data of the vehicles, participating in federated learning, and training a local model; S3, aggregating the local models of all the vehicles to obtain an aggregation model; S4, judging whether the aggregation model converges to preset precision or exceeds a time limit or not, if yes, entering the step S5, and otherwise, returning to the step S2; S5, establishing an Internet-of-vehicles global digital twinning model; S6, periodically updating the Internet-of-vehicles global digital twinning model; and S7, initiating a path finding request to a roadside unit, and updating the optimal path and the local prediction model in real time. The planning method provided by the invention is applied to the field of Internet of vehicles, so as to solve the problems of low flow prediction and path planning accuracy, high time delay and privacy leakage risk in the current road traffic system.

The invention discloses a privacy protection method during data aggregation of a wireless sensor network. Privacy protection in a data addition aggregation process and a multiplication aggregation process is realized on the basis of an elliptical curve algorithm. The privacy protection method comprises the following steps of: determining, by a target node, an elliptical curve parameter and a private key k, calculating a public key K and broadcasting the elliptical curve parameter and the public key K; encrypting, by each source node, a plain text by an elliptical curve algorithm by using a random number, the elliptical curve parameter and the public key K and transmitting a cipher text message; performing, by a middle node, aggregation operation on the received cipher text message and transmitting an aggregation result to the target node; and decrypting, by the target node, the received aggregated cipher text data by using the private key k according to the elliptical curve algorithm to obtain aggregated plain text data. Compared with the prior art, an elliptical curve encryption technology adopted in the invention has the advantages of small public key digit, high calculation speed and the like, and two aggregation operation modes of addition aggregation and multiplication aggregation can be realized.

A location tracking service includes a location tracking server and individual tracking modules. An individual tracking module can be attached or embedded in a consumer product. Each tracking module is programmable by an end-user to include a private ID that is sent along with tracking data to the location tracking server. The end-user can define and edit the private ID in the tracking module independent of the location tracking service to improve privacy protection. The tracking data may include raw (unprocessed) location data to reduce processing requirements at the tracking module.

The invention discloses an identity information management method and system based on block chain technology. The method comprises the following steps: identifying user identity through a block chainnetwork so as to protect personal privacy information; and performing identity verification on a user according to the identified user identity through the block chain network and the user module. Theidentity information management method disclosed by the invention has the advantages that unified identity management infrastructure with strong privacy protection, strong security protection and strong audit accountability is constructed based on the block chain network, and the unified identity management infrastructure can provide identity identification, identity verification, authorization,audit accountability and like services.

The invention relates to a searchable encryption method based on wildcard character in cloud storage safety. The method comprises the following steps that: setting a document to be uploaded; extracting a keyword set; encrypting the keyword set; selecting a random number as a document encryption key, and encrypting the document encryption key; encrypting the document to be uploaded to obtain a ciphertext, and sending the ciphertext to a cloud computing platform; input a query keyword set, generating a query trapdoor, carrying out signature, and sending the signature to the cloud computing platform; verifying a query signature by the cloud computing platform, and executing a search algorithm by the cloud computing platform; transmitting a keyword index and the query trapdoor into a keyword matching protocol to obtain an encryption matching result; carrying out decryption to obtain a search result; according to the search result, returning a corresponding ciphertext by the cloud computing platform; and recovering the document encryption key, and recovering the document. By use of the method, the keyword search of at most two wildcard characters can be supported, the wildcard character can appear on any position of the keyword, and a plurality of random characters can be represented.

The invention relates to a sensitive picture identification method and apparatus, and a server. The method comprises the following steps: identifying pictures to be processed in a picture database of a user terminal by use of a sensitive picture identification model, determining whether the pictures to be processed are sensitive pictures, and when the pictures to be processed are sensitive pictures, storing the pictures to be processed in a private photo album. According to the invention, the method can automatically identify and process the pictures to be processed in the picture database, prevents a user from manually selecting the sensitive pictures and removing the sensitive pictures to the private photo album, is time-saving and labor-saving, improves the identification efficiency of the sensitive pictures, improves the privacy protection intensity and prevents leakage of the sensitive pictures.

A distribution and scheduling system for advertisements that targets ads to users and maximizes service-provider revenue without having full knowledge of user-profile information. Each user device stores a user profile and is pre-loaded with a set of ads that could possibly be shown during a timeslot. Each user device selects and displays an ad based on the user profile but does not identify the selected ad to the service provider. Instead, the user devices provide perturbed user-profile information in the form of Boolean vectors, which the service provider uses in conjunction with a guaranteed-approximation online algorithm to estimate the number of users that saw a particular ad. Thus, the service provider can charge advertisers for the number of times their ads are viewed, without knowing the users' profiles or which ads were viewed by individual users, and users can view the targeted ads while maintaining privacy from the service provider.