文件处理方法、装置、电子设备及存储介质
By introducing a USB Key metric library and dynamic metric module into the Windows file encryption system, the security problem caused by EFS's reliance on user passwords is solved, enabling secure detection and defense of the file encryption process and improving the security of file encryption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING UNIV OF TECH
- Filing Date
- 2022-12-16
- Publication Date
- 2026-07-17
AI Technical Summary
The existing Windows File Encryption System (EFS) relies on user passwords as a single element, making it vulnerable to weak password attacks and difficult to defend against mask attacks, dictionary attacks, or rainbow table attacks, resulting in low file encryption security.
By receiving file processing instructions, the corresponding execution metric is determined and compared with the metric benchmark value in the metric benchmark library in the USB Key. If they match, encryption/decryption processing is performed. The encryption and decryption operation is carried out in combination with the user key in the USB Key. During the processing, a dynamic metric module is introduced to detect and defend the trusted status of the process.
It improves the security of the file encryption process, has the ability to detect and defend against injection attacks and code tampering, and enhances the security of file encryption.
Smart Images
Figure CN116108463B_ABST