6results about How to "Improve information security" patented technology

The present application relates to the technical field of short message processing, in particular to a method and device for intelligent analysis and processing of big data of spam short messages, the method comprising: judging feature difference of short message content; according to the judging result of feature difference, giving the short message corresponding spam short message feature value, and accumulating the spam short message feature values together to obtain a first spam short message feature value; if the first spam short message feature value exceeds a first preset threshold, intercepting the short message, if the first spam short message feature value does not exceed the first preset threshold, inputting the short message content into a short message content intelligent analysis strategy module to obtain a second spam short message feature value; performing addition accumulation calculation on the first spam short message feature value and the second spam short message feature value to obtain a third spam short message feature value, if the third spam short message feature value exceeds a second preset threshold, intercepting the short message, if the third spam short message feature value does not exceed the second preset threshold, passing the short message. The present application improves short message quality and enhances the image of a telecom operator enterprise.

This disclosure relates to a log encryption and decryption method, apparatus, device, and storage medium. The method includes: in response to detecting a target log generated in a trusted execution environment, performing a first encryption process on the target log in the trusted execution environment using a first preset encryption algorithm to obtain an encrypted log; performing a second encryption process on the decryption key in the first preset encryption algorithm to obtain an encrypted decryption key; transferring the encrypted log to a kernel log, and storing the encrypted decryption key in a designated storage location. This disclosure can reliably encrypt target logs in a trusted execution environment, thereby ensuring that users' personal privacy information is not leaked, and thus improving the information security of the terminal.

This invention relates to a blockchain-based trusted collaborative control method and system for vehicle platoons, belonging to the field of intelligent connected transportation technology. The method includes steps such as vehicle state perception and data broadcasting, RSU node data verification and blockchain uploading, vehicle comprehensive trust value calculation and updating, predictive control compensation mechanism, abnormal behavior detection and malicious node isolation, and dynamic optimization and adjustment of the platoon structure. The system executes this method, ensuring data consistency and immutability through blockchain technology to enhance information security; utilizing trust value calculation and anomaly detection mechanisms to guarantee platoon security; and dynamically adjusting the platooning order based on priority scoring to improve collaborative control performance. This invention achieves high security, high real-time performance, and high robustness in collaborative vehicle platoon control under complex conditions, and has significant application value.

The application is suitable for the field of encryption technology, and provides a device encryption method and device, a terminal device and a storage medium. In the embodiment of the application, an encryption instruction is acquired, an encryption control signal is generated according to the encryption instruction, and a first switching device is controlled to be closed according to the encryption control signal, so that the first switching device is used to control a power supply to supply power to an interactive device, thereby improving the information security of the terminal device.

Embodiments of the present application provide a vehicle request processing system, method and computer storage medium. The vehicle request processing system comprises a vehicle controller, a first cloud server and a second cloud server. The vehicle controller is configured to send a first service request to the first cloud server. The first cloud server is configured to encrypt vehicle identification information in the first service request to generate a second service request, and send the second service request to the second cloud server. The vehicle identification information is used to indicate a vehicle generating the first service request. The second cloud server is configured to send a service request result to the vehicle controller through the first cloud server in response to the second service request. The embodiments of the present application can improve the information security of the vehicle controller on the vehicle when sending a service request to the second cloud server.

This application relates to a POS machine and a POS machine equipped with a backup battery (12), which includes a main unit (21), a rear cover (11) detachably connected to the main unit, and an information security area located within the main unit (21). The rear cover (11) has a first battery compartment (11-1) for accommodating a main battery (17) and a second battery compartment (11-3) for accommodating a backup battery (12) on the side facing away from the main unit (21). Both the main battery (17) and the backup battery (12) are electrically connected to the information security area after installation. The POS machine also includes a first cover (16) detachably connected to the rear cover (11), which covers both the first battery compartment (11-1) and the second battery compartment (11-3) after installation. Because the POS machine provides a second battery compartment on the rear cover for the backup battery, the backup battery is no longer soldered to the PCB motherboard inside the main unit, but is located on the side of the rear cover facing away from the main unit. Therefore, replacement can be performed simply by removing the first cover without triggering a security attack alarm.