32results about How to "Prevent knowing" patented technology

The invention provides an electronic entrance guard system of a residential area. The electronic entrance guard system comprises a control unit, a calling unit and a plurality of answering units, wherein the calling unit is used for inputting calling information; the control unit is used for starting one of the answering units according to the calling information input by the calling unit and is also used for comparing a received input calling signal with a plurality of pieces of preset calling information after receiving the input calling signal from a password input part and a digit information input part; if the received input calling signal is consistent with one of the multiple pieces of the preset calling information, the control unit switches on the answering unit of the multiple answering units, which corresponds to one of the multiple pieces of the preset calling information consist with the received input calling signal; if the received input calling signal is not consistent with any piece of the preset calling information in the multiple pieces of the preset calling information, the control unit does not switch on any answering unit.

The invention aims to provide an image security retrieval scheme based on secret sharing in a cloud environment, which realizes security retrieval of a cloud image by constructing an index share and atrap door share. A data owner generates a ciphertext image and an index share and uploads the ciphertext image and the index share to a cloud, during query, a user generates a trap door share and sends the trap door share to the cloud, and the cloud can calculate a distance share and return the ciphertext image closest to the query image, so that the security problem caused by using a unified keyfor encryption in an existing scheme can be solved. In order to prevent an attacker from analyzing image similarity information according to an original Euclidean distance to speculate an image, a random number and a secure multi-party calculation method are used to encrypt a distance share. The security of the scheme depends on a secret sharing technology, the common precision loss problem in image security retrieval is solved, and the retrieval precision is almost consistent with that of plaintext domain image retrieval.

The invention relates to a user identity real-name authentication method of an electronic payment system, belongs to the technical field of network information security, and solves the problem that real-name authentication is unsafe and unreliable in the prior art. The method comprises the following steps that an electronic payment system sends a real-name authentication request to a third-party supervision system; After receiving the real-name authentication request, the third-party supervision system acquires network operator information and a network user name of the electronic payment system, acquires user real-name identity information and transmits the user real-name identity information to the infrastructure platform; The infrastructure platform verifies the real-name identity information; If the verification result is true, performing encryption mapping on the network operator information, the network user name and the real-name identity information, generating a network identity certificate, transmitting the network identity certificate to a third-party supervision system, and sending real-name authentication confirmation information to an electronic payment system; Otherwise, the real-name authentication is terminated. According to the method, a third-party supervision system is combined with a network identity certificate, so that the privacy of a user is protected,and the person and the certificate are the same.

The present invention relates to a semiconductor device, a unique ID of the semiconductor device and a method for verifying the unique ID. Thus, original data (bit string) having 127-bit length [126:0] is inputted at step S1 . Then, it is determined whether the number of bits of ''1'' in the bit string [126:0] inputted at the step S 1 is more than the half of the bits of the bit string (that is, not less than 64) or not at step S2 . When the number is not less than 64, the process proceeds to step S3 . At the step S3 , the bit string [126:0] is inverted and an invert bit [127] is set to ''1''. Then, the process proceeds to step S5 . At the step S5 , the fuse corresponding to the bit string [126:0] and the bit [127] are cut by LT.

The invention provides a safe query method, device and system of high-dimensional spatial data. The method comprises the following steps: a data owner sends K quantization center sets, the random indexes of each coarse cluster and a codebook to private cloud, sends an encrypted outsourced database, the random indexes of each coarse cluster, the quantization code of each encrypted data point and a homomorphic private key to a server and sends a homomorphic encrypted distance table and an encryption key to a data user; and the data user obtains the random indexes independently corresponding to w coarse clusters and the quantization code of the query point form the private cloud, obtains the quantization code of each data point and k encrypted data points in the w coarse clusters, and carries out encryption to obtain k query results. According to the scheme, the data in the outsourced database and data user query contents can be effectively prevented from being pried by the server, and the user can be prevented from prying into data except the query content of the user.

The invention discloses an Internet of Vehicles anonymous security evidence obtaining method and system based on a blockchain technology. The Internet of Vehicles anonymous security evidence obtaining method and system are applied to a network environment composed of a plurality of data uploading modules, a plurality of data using modules, a plurality of authorization modules, a blockchain module and a distributed data storage module. The data uploading module preprocesses and encrypts the data, uploads the data to the distributed data storage module, and sends a corresponding transaction to the blockchain module; the data use module sets required data attributes, generates a range proof and sends the range proof to the blockchain module; the authorization module is responsible for initialization of the whole evidence obtaining system, tracing of evidence obtaining data and authorization approval operation, and participates in maintenance of blockchain nodes; the blockchain module is composed of a plurality of nodes, so that the whole system can supervise the transparency and legality of evidence obtaining; and the distributed data storage module is used for storing the encrypted evidence obtaining data and generating a downloading link. According to the invention, the confidentiality and traceability of evidence obtaining data can be protected.

The invention provides an information processing method applied to a first electronic apparatus and aims to solve the technical problem in the prior art that information leak is caused by poor information processing capability of electronic apparatuses. The method comprises the steps of receiving first information sent by a second electronic apparatus; judging whether the first information meets preset conditions; if yes, forbidding the display of the first information on a display unit of the first electronic apparatus and sending second information to a third electronic apparatus, wherein the second information is information determined according to the first information. The invention also provides the corresponding electronic apparatus.

The invention discloses command decoding device and method for disordered coded commands. The command decoding device for the disordered coded commands comprises a selection unit and at least one decoding unit, wherein the selection unit is provided with at least two inputs and at least one output, the at least two inputs are used for inputting at least two disordered coded command data, the at least output is used for outputting at least one disordered coded command data, the selection unit is configured to select at least one disordered coded command data from the at least two disordered coded command data and distribute the selected disordered coded command data to the corresponding output; and the at least decoding unit is respectively coupled with the corresponding output of the at least one output and used for receiving the selected disordered coded command data and decoding the selected disordered coded command data correspondingly.

The invention provides a safe storage device, system and method. The device comprises a main control unit, a storage unit and an encryption unit, wherein the main control unit is used for generating acontrol instruction according to a terminal request and sending the control instruction to the storage unit; the storage unit is used for determining first secret key information, corresponding to the control instruction, of a user according to the logic address of the received control instruction and sending the first secret key information to the encryption unit; the encryption unit is used forreceiving the first secret key information sent by the storage unit and second secret key information sent by a terminal, and generating a data secret key according to the first secret key information and the second secret key information. The invention provides the safe storage device, system and method. By additionally arranging the encryption unit, the secret key information is stored separately, a secret key can be effectively prevented from being known by an illegal user, the safety of the secret key is guaranteed, and the data safety is ensured.

In an listening test using an individual test execution device, it is possible to prevent an unfair act such as stealing a look at an answer of another test-taker. The individual test execution device (101) reads out test problem data and individual information from test problem storage means (102) containing test problems and individual information storage means (103) containing individual information. Reproduction means (105) reproduces an actual problem selected/generated according to the individual information and read out by actual problem generation means (104). Thus, it is possible to prevent an unfair act of each test-taker.

The invention relates to the technical field of intelligent medicine boxes, in particular to a medication supervising and reminding system and method. The system comprises a supervising and reminding module which is used for acquiring a reminding signal and sending medication reminding to a user module according to a user preset rule, wherein the user preset rule comprises a preset reminding action interval and a preset reminding action difference, and the user module is used for receiving the medication reminding and displaying the medication reminding to a user. The invention aims to provide the medication supervising and reminding system with an enhanced reminding function.

The objective of the invention is provided with an automatic transaction device, which will not reveal the accounting number and the code even if the other person can observe the action of the client or record it using a camera, the card of the client is not able to be abused. A transacted guiding image, as a solving means, is showed by arbitrarily switching the image identified by the vision from the first angle of field of view and the image identified by the vision from the second angle of field of view in the automatic transaction device, or is showed by dividing a guiding image into a image of each direction in the first field of view and a a image of each direction in the second field of view.

The invention discloses a distributed key generation and authentication method of a wireless network. The method is used for generating and authenticating an application key between two communicationdevices in the same wireless network for subsequent encrypted data transmission between the two communication devices. Both communication devices have a trigger switch, and the two communication devices are triggered to generate an application key and authenticate the application key by externally operating the trigger switch. The invention also provides a communication device for performing the distributed key generation and authentication method of the wireless network. A user operates a trigger key from the outside to enable communication device to enter an authentication interaction state,and the transmitting power of broadcasting and transmitting information is additionally limited when the communication device executes the distributed key generation and authentication method of thewireless network, the invention provides a high-security-level data transmission system, and the leakage risk of data transmission in the wireless network is effectively avoided.

The invention discloses a privacy protection online car-hailing method and a privacy protection online car-hailing system for excluding matched drivers. The privacy protection online car-hailing method and the privacy protection online car-hailing system are applied to an online car-hailing system environment consisting of a plurality of passenger modules, a plurality of driver modules, an online car-hailing service provider module and a certification authority module. The passenger module registers passenger information, generates a service request and transmits the service request to the online car-hailing service provider module; the driver module registers driver information, generates a service response and transmits the service response to the online car-hailing service provider module; the online car-hailing service provider module verifies the service request and the service response, generates a matching result and transmits the matching result to the corresponding paired passenger and driver; and the certification authority module is responsible for system initialization and entity registration. According to the invention, the privacy of passengers can be effectively protected, and the process of receiving the online car-hailing service is safe and reliable, so that the potential risk of maliciously matching the driver is effectively avoided.