8 results about "Device file" patented technology

This application discloses a computer equipment information processing method, device, and system to solve the problems of low efficiency, inaccurate information, poor real-time performance, and cumbersome inventory management in computer equipment management. The method includes: in response to the access of an external device, a first computer obtains its unique hardware identifier and generates device binding data associated with that hardware identifier; the first computer collects its own hardware and software information, combines it with the binding data to generate device file data, and sends it to a second computer (server); the server establishes a device file associated with the first computer based on the file data. The system correspondingly includes modules for performing the above steps. This application achieves automated, accurate acquisition and centralized management of equipment information by automatically triggering information collection and binding through hardware devices, and supports rapid inventory management via mobile terminals using near-field communication technology, significantly improving the efficiency, accuracy, and real-time performance of equipment asset management.

This invention discloses a domestically developed encryption system and method for high-value data in the field of data encryption technology, comprising: environment preparation: installing a Docker runtime environment on a Kylin operating system and ensuring that the SELinux security subsystem is in forced mode; encrypted volume preparation: after completing the environment preparation, creating a LUKS encrypted volume for physical storage space on the host machine, initializing the volume using an encryption key, and creating a file system; security policy configuration: after completing the encrypted volume preparation, creating and loading a custom SELinux policy module, wherein the defined security rules are configured to: deny access operations of the host machine process domain to the LUKS encrypted volume device file, while allowing access operations of the Docker container process domain to the LUKS encrypted volume device file. This invention achieves high-value data encryption based on Docker containers and LUKS encrypted volumes in a Kylin operating system environment, realizing strong encrypted data storage.

This application discloses a trusted data acquisition method based on a trusted platform module, relating to the field of computer security technology. It includes: a trusted data processing driver opening the trusted platform module device file in exclusive mode to obtain exclusive access; through the trusted platform module's desealing operation, the trusted platform module hardware automatically compares the value of the current platform configuration register with the baseline hash value at the time of sealing; if the comparison matches, the trusted platform module releases the key; the trusted data processing driver directly maps the sensor register space through the physical address to read the raw data; at least one environmental characteristic parameter of the external physical environment where the sensor is located is acquired; the raw data and the environmental characteristic parameter are combined to form a trusted data packet and signed using the key. This application solves the technical problems in the prior art, such as the inability to detect tampering before system startup, the risk of man-in-the-middle attacks in the data acquisition path, the inability to prove the correlation between data and the external environment, and the untrustworthiness of software verification, achieving end-to-end trusted verification from the hardware root of trust to sensor data and then to the external physical environment.

The application discloses a kind of multi QEMU simulation inter-system communication method and device, the method includes: according to the communication requirement between multi QEMU simulation systems, at least one serial interface is generated and initialized by master system;Then the two serial interface pairs that constitute communication channel are connected;The management configuration process of master system starts at least one simulation system, and maps single-end serial interface as the device back end of simulated serial interface in system;Multiple simulation systems are initialized, and application development can be carried out in the interior;Any QEMU simulation system carries out communication between simulation systems according to the serial interface device file in the system.The application focuses on the node communication problem when embedded system is simulated, breaks through the requirement of traditional single machine simulation, and is flexible in configuration, controllable in testing, can meet the requirement of serial data communication between multi QEMU simulation systems in various scenes, and better improves the efficiency of embedded software development and problem positioning.

The application discloses a cross-device file operation method, device, medium and product based on an open-source MEC system, and the method comprises the following steps: whenever a standard file operation instruction for a target second device is detected, a target file operation record is created, written into a main storage area, and a record temporary storage area is emptied; the standard file operation instruction is executed through a distributed file system, and after the execution, a corresponding record in the main storage area is updated; when an operation rollback instruction is detected, according to a rollback type of the operation rollback instruction, the latest historical file operation record in the main storage area is transferred to the record temporary storage area, or the latest record in the record temporary storage area is transferred to the main storage area; according to the rollback type and the transferred record, a rollback file operation instruction is determined, and the rollback file operation instruction is executed through the distributed file system, and the technical scheme of the embodiment of the application can significantly improve the operation fault tolerance and user experience of the distributed file management.

The present disclosure provides an access device, method, medium and device of a device, in the case of obtaining, in a first operating system, a first operation request initiated by an application program for a target device file, determining a second operation request for accessing a first file system based on file identification information of the target device file in the first operation request, determining a target drive callback function identifier corresponding to the file identification information of the target device file among a plurality of drive callback function identifiers pre-registered by a drive program corresponding to the target device based on the second operation request, and executing an access operation on the target device by calling a target drive callback function corresponding to the target drive callback function identifier in the drive program, thereby realizing the function of the first file system supported by the second operating system in the first operating system, so as to reuse the drive program developed for the second operating system, reduce the development cost of the drive program, and improve the universality of the drive program.

This invention discloses a remote location method for redirecting real-time output of network system operating status. Authorized users log into the network system via remote connection; the user-mode log printing output switch is enabled; the kernel message buffer is accessed through a character device file to capture the real-time logs of the current network system kernel modules and echo them back to the authorized terminal; after capture, access permissions are disabled. This invention, based on a kernel module and user-mode collaboration mechanism, constructs a kernel-level real-time diagnostic channel. The method of directly accessing the kernel message buffer to output kernel module logs in real time assists in quickly and efficiently locating problems. By tracking kernel module logs, the operating status of each module is confirmed, accurately locating problems and achieving kernel μs-level log capture latency. Simultaneously, a three-level authorized kernel-level security mechanism and dynamic shutdown feature dynamically allocate resources, avoiding security risks associated with debugging in the user environment.

This application discloses a display device and a file synchronization method in some embodiments, which synchronizes files on a terminal to a display device. The method includes: receiving files synchronized from a terminal connected to the display device, and saving the files to a hard disk. Additionally, it includes receiving an instruction to send a prompt message, sending the prompt message to the terminal, the prompt message being used to inquire whether the terminal authorizes the display device; receiving confirmation of authorization from the terminal, indicating that the display device has been authorized by the terminal, and receiving the synchronized files after authorization.