56results about How to "Improve data transmission security" patented technology

FIELD OF THE INVENTION that present invention relate to the field of communications technology, A method for encrypt data transmission comprises the following steps: S1, a message body with the numberof bytes set as Ni2 is transmitted freely in Ni4 channels, a random number Ni1 is generated by using a timing counter, and the message body with the number of bytes set as Ni2 to be transmitted is randomly divided into Ni3 segment message body segmented data packets according to the random number Ni1; S2, the Ni3 segment message body segmented data packets separated in the previous step are randomly misordered by an encoder, and then are dynamically encrypted and transmitted in a random multi-channel manner; 3, message body is restored, wherein the receiving end receives the segmented data packets of each segment of the message body, stores and decrypts the true value of the restored data through a decoder, namely, reorganizing the segmented data of each segment of the message body into complete message body data according to a packet sequence number and a misordering rule, and sequentially splicing the segmented data of each segment of the message body. The invention solves the problem that the encryption mode of the existing intelligent security system is simple and easy to cracke and the intercepted information has the hidden danger of safety.

The invention provides a data separation method and a data separation system. The data separation method comprises the following steps: acquiring all network data to be transmitted; judging that whether all the network data comprises network data which is not transmitted through a public network or not, if so, extracting the network data which is not transmitted through the public network. According to the data separation method provided in the invention, whether all the network data comprises the network data which is not transmitted through the public network or not is judged, so that the network data which is not transmitted through the public network is determined and is extracted from all the network data of users, and the network data which is not transmitted through the public network is separated from network data transmitted through the public network. Furthermore, a virtual private network can be established between a terminal and a target server and is specially used for transmitting the extracted network data, and the extracted network data is transmitted between the terminal and the target server through the virtual private network.

The invention discloses a two-dimensional code big data secure transmission device based on dynamic multistage encryption and decryption, and the device comprises a first data exchange interface whichis used for obtaining and sending to-be-exchanged data information; a data encryption module which is used for receiving the to-be-exchanged data information and carrying out dynamic multistage encryption; a two-dimensional code image generation module which is used for encoding the encrypted to-be-exchanged data to generate a two-dimensional code image; a two-dimensional code display module which is used for displaying the two-dimensional code image; the acquisition module is used for acquiring the two-dimensional code image; a two-dimensional code image recognition module which is used forrecognizing the collected two-dimensional code image and extracting feature data information; a data decryption module which is used for carrying out dynamic multistage decryption on the two-dimensional code feature data information; and a second data exchange interface which is used for outputting the decrypted exchange data; according to the invention, the data transmission capacity and the datatransmission security are greatly improved.

The invention provides an efficient applicative safety private network transmission method and system based on the internet of things. The method comprises the following steps: respectively implanting a safety control module for network transmission function extension in a logistics data acquiring end for transmitting the data in the internet of things and a logistics center server, wherein the safety control module at least comprises the following settings: an initialization operation for reading in a configuration file to call kernel information and setting the logistics center server port information and the information in a communication port of the logistics data acquiring end; an opening / closing instruction operation for defining a data transmission function between the transmission layers; a sending / receiving instruction operation for defining the transmission layer to perform the data transmission; and a data encryption / decryption instruction operation for defining the transmission layer to perform the data transmission; when the internet of things has the data to transmit, the transmission layer is only opened and the encryption / decryption communication is performed to realize the data communication of the network link private network; the logistics data received by the logistics center server is decrypted according to a preset decryption instruction, and the transmission layer is immediately closed after the transmission is accomplished.

The invention provides an automobile ECU information monitoring system, relates to the technical field of automobile monitoring, and solves the technical problem of monitoring of automobile conditions. The system comprises a vehicle ECU, a vehicle bluetooth module, a vehicle encryption and decryption module, and a mobile terminal, the vehicle ECU is mutually connected with the vehicle encryption and decryption module through an SPI bus, the vehicle encryption and decryption module is mutually connected with the vehicle bluetooth module through a data bus, an airborne microprocessor, an airborne bluetooth module, and an airborne encryption and decryption module are arranged in the mobile terminal, the airborne microprocessor is mutually connected with the airborne encryption and decryption module through a data bus, the airborne encryption and decryption module is mutually connected with the airborne bluetooth module through a data bus, and the airborne bluetooth module is mutually connected with the vehicle bluetooth module in a bluetooth communication manner. The system is applicable to the monitoring of the operation condition of vehicles.

The invention relates to a multi-mode car searching method, a multi-mode car searching device and a multi-mode car searching system. The method comprises the following steps: when a multi-mode car searching device which is installed on a car detects a signal that the car is stolen, starting positioning of the stolen car; if the car is located in a signal covering region, obtaining the position information of the car by the multi-mode car searching device by virtue of a covered signal and providing the position information for a portable detector to search for the car; if the car is located in a blind region which is not covered by the signal, obtaining blind region position information of the car by using a distributive detector which is located in the blind region and providing the blind region position information to the portable detector to search for the car. According to the scheme provided by the invention, even if the stolen car is located in the blind region, the stolen car can be further accurately positioned.

The present invention discloses a multi-terminal message encrypted transmission method and system, the method comprising: exchanging a first key between a first terminal of a first terminal group and a second terminal of a second terminal group randomly selected by the first terminal; The terminal encrypts the communication message according to the first key, and sends the encrypted communication message to all terminals in the second terminal group; all other terminals in the second terminal group except the second terminal exchange the second terminal with the second terminal. key; the second terminal encrypts the first key according to the second key, and sends the encrypted first key to all other terminals; all other terminals encrypt the encrypted first key according to the exchanged second key Decrypt to obtain the first key; all terminals in the second terminal group decrypt the communication message according to the first key. The invention can realize the encryption and decryption between different terminal groups, and improve the security of data transmission.

The present invention provides a communication method, a terminal and a server, which are applied to a network composed of a server and a terminal. The method includes: sending identification information to the server; receiving MAC information fed back by the server according to the identification information; combining the MAC information with the local Stored MAC tags are compared, and if the comparison result matches, then it is determined that the security authentication with the server is passed, and a verification pass request is sent to the server; through the token sent by the server, an authentication with the server is established. communication. In this way, the security of data transmission between the server and the terminal can be effectively improved.

The invention provides a power special quantum encryption gateway system. The system comprises a power special quantum encryption gateway communicated with a gateway management device through a quantum link; the power special quantum encryption gateway is used for performing encryption communication through the quantum link or a classic link; a quantum secret key distributing device is integrally arranged on the power special quantum encryption gateway and comprises a vertical integration model and a transverse integration mode; the quantum link comprises a quantum secret key sending device and a quantum secret key receiving device which are connected with each other through an optical fiber or a free space; the gateway management device comprises a user authentication module, a user right / certificate management module, a quantum secret key management module and a communication interface module. Compared with the prior art, the power special quantum encryption gateway system provided by the invention is capable of synchronously supporting the traditional mode encryption function and the quantum mode encryption function, and capable of providing unconditional information security assurance for the power system data transmission under the quantum mode, and convenient for the large-scale deployment and industrial practicality of the power special quantum encryption network.