Data encryption mobile storage management method based on virtual disk

Abstract

The invention discloses a data encryption mobile storage management method based on a virtual disk. The method includes the following steps: 1) writing an encryption roll identification in the head portion of the mobile storage device and building a virtual magnetic disc encryption roll in the mobile storage device; 2) checking the encryption roll identification when the mobile storage device is inserted in a designated computer and processing as a common mobile storage device if the encryption roll identification is not correct and executing the next step otherwise; 3) checking encryption roll information head of the virtual disc according to a mounting command and executing the next step if the check passes; 4) mounting the encryption roll of the virtual disk, calling virtual disk drive program with an encryption and decryption module to read and write the virtual disk encryption roll, enabling the encryption and decryption module to encrypt and decrypt in real time automatically and finally automatically unloading the virtual disk encryption roll when discharging the mobile storage device. The method has the advantages of being safe and reliable in information storage, flexible in security policy configuration, capable of simply and conveniently managing the portable storage device and high-efficient and transparent in data encryption and decryption processing.

Description

technical field

[0001] The invention relates to a data storage and management method of a mobile storage device under a Linux operating system, in particular to a data encryption mobile storage management method based on a virtual disk for automatic encryption and decryption of data by creating a virtual disk encryption volume for an ordinary U disk. Background technique

[0002] With the continuous development and deepening of informatization, computers have fully entered people's lives and work, and U-disk, as a plug-and-play USB device, is small, easy to carry, and has a large storage capacity Large size, reliable performance, fast transmission speed and other advantages have become indispensable mobile storage devices in daily life. However, security issues such as data leakage caused by USB flash drives are becoming more and more serious, and have become the focus of many companies and personal information security protection.

[0003] In order to solve this problem, e...

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