42results about How to "Prevent illegal access" patented technology

A method for enrolling a user terminal in a network includes an access point for the user terminal, the access point performing the following steps: detecting the performance of a first pressure of a registration button on the access point; detecting the reception of a request for enrollment from the user terminal; detecting the performance of a second pressure of the registration button on the access point; and enrolling the user terminal in the network only if a single request for enrollment is received between the detections of the first and second pressures.

A method and apparatus for recognizing a protrusion on a face is proposed. The apparatus forms two images, wherein one is formed in a condition in which a target is lighted and another is formed in a condition in which the target is non-lighted. Face regions are detected from the images respectively and then are compared each other. Then, analyzing change in intensity for indicating change in contrast of the compared regions is performed. Based on the result of the analyzing, it is determined whether there is a protrusion in a face presented in the images.

Biometric authentication device, biometric information authentication method. A biometric authentication device has high security by preventing intra-device information from being falsified and stolen by a third party. A biometric authentication device includes a biometric information storage module, a biometric information authenticating module for individual authentication, a mutual authentication module with the terminal, a registration counter corresponding to the mutual authentication, an authentication counter corresponding to the biometric authentication, a stoppage flag set when the value of the counter is larger than a predetermined value, and authentication control module for preventing the module from operating depending on the stoppage flag.

The invention discloses a public and private isolation method and device. The method includes monitoring system events on a mobile terminal, judging whether the system events accord with a preset working area rule, executing operation corresponding to the system events in the working area space on yes judgment and encrypting and storing data corresponding to the operation in a database of the working area space. According to the public and private isolation method and device, a safe independent working area is built on the mobile terminal, all working data are stored in a protected safe area, personal applications cannot visit enterprise data, the enterprise data are prevented from being stored illegally by the personal applications, IT departments can well protect enterprise applications and the enterprise data, indistinctive personal application experience is provided for workers, and the dual purpose effect is achieved.

Provided is an image processing method that uses an image processing device to receive image data and one or more reference information that is referred to when performing processing on the image data, performs processing corresponding to the reference information on the received image data, and performs processing corresponding to the reference information based on the received reference. The information is used to determine the confidentiality level of the image data to be processed, the processing to be executed is determined based on the result of the determination, and the determined processing is executed.

The invention discloses a networked control system intrusion detection method and system based on an ontology model. According to the method, the networked control system ontology model is built; intrusion detection is carried out based on the ontology model; and after decision is weighed, the final detection result is obtained. The system comprises a master node, a plurality of slave nodes and an industrial communication network responsible for message transmission. The master node is responsible for finishing the collection of host activity audit data of itself, collection of all network messages, detection of control closed circulation corresponding to the master node, control object detection, detection of host activity audit data of all nodes in the whole system, network activity detection and detection result coordination. Each slave node is responsible for completing detection of control closed circulation corresponding to the slave node and uploading the detection result to the master node as well as collecting the host activity audit data of the node itself and uploading the host activity audit data to the master node. According to the intrusion detection method and system, the intrusion detection can be performed in resource-constrained environments efficiently, comprehensively and in real time, thereby reducing industrial network control system safety reconstruction cost.

This invention relates to a method for registering access of address conversion users in data transmission. This invention first of all sets a message information register hash table at initialization, sets up access control table of each host to compare the information contained in the message and in the access control table not register if they are different or if all information is the same, a corresponding register of the said message is recalled from the hash table according to the source and destination ports to finish the address conversion or add the received message information into the hash table to make judgement to the messages, then register them and finish address conversion to register the access time finally.

This application relates to an intelligent Internet of Things and a control method thereof. Among them, the intelligent Internet of Things includes: intelligent terminals and gateways, and the intelligent terminals are connected to the gateway through a local area network. The gateway includes an intrusion detection module, which is used to detect whether the remote command sent to the smart terminal is legal; when the remote command is illegal, the intrusion detection module refuses to transmit the remote command to the smart terminal. The intelligent Internet of Things and its control method of the present invention can prevent illegal access to the internal network of the smart home and illegal control of the internal terminals of the smart home by external malicious attackers, and ensure the safety of the person, property and privacy of the smart home users.

The invention provides a card reader and a control method of the card reader. The card reader can detect whether magnetic data is recorded in the magnetic stripe of the card inserted from the card insertion port, prevent criminals from obtaining magnetic information illegally, and reduce the cost. The card reader has: a magnetic sensor (8) for detecting whether magnetic data is recorded in the magnetic strip of the card; and a control unit that supplies power to the magnetic sensor (8) and receives an input of an output signal of the magnetic sensor (8) (14), if the magnetic sensor (8) is supplied with power from the control unit (14), it outputs an output signal. When the recording area of ​​the magnetic data recorded in the magnetic stripe of the card inserted from the card insertion port starts to pass through the magnetic sensor (8) and the time until the end of passing through is set as the card passing time, the control unit (14) sends a signal to the magnetic sensor (8). ) power supply for a first supply time shorter than the card passing time.