U disc capable of being encrypted and encryption method thereof

Abstract

The invention discloses a U disc capable of being encrypted. The U disc comprises a U disc control module used for data monitoring and processing, a storage module used for data storage, a virtual file distribution and sector remapping module used for generating a disc distribution list, and a data encryption module used for encryption processing of sent files, the disc distribution list comprises a common catalog and a preset interface catalog, and when it is detected that a host has write-in operation aiming at the preset interface catalog, the files are sent to the data encryption module. According to the U disc capable of being encrypted, the defect that the operation of special application software is needed during file copying is overcome, the input of passwords is not required, complicated and inconvenient operation of mounting an encryption partition etc. is not needed, and encryption storage of the files can be realized.

Description

technical field [0001] The invention relates to a mobile storage device, in particular to an encryptable U disk and an encryption method thereof. Background technique [0002] At present, U-disk is very common as a mobile storage device. With the popularization of U-disk applications and the development of technology, its security and confidentiality requirements have gradually attracted attention. The following is the existing typical encrypted U-disk security Technology, the core is to divide the U disk into a confidential area and a non-confidential area, store sensitive files in the confidential area, and store non-sensitive files in the non-confidential area. For access to the confidential area, you need to install special software on the access computer and run this software, enter the password to access. The defect of this design is that the software needs to be installed on a computer using a USB flash drive, which is inconvenient (operation in front of others) and ...

AI Technical Summary

Problems solved by technology

The defect of this design is that the software needs to be installed on a computer using a USB flash drive, which is inconvenient (operation in front of others) and unsafe

And for any computer host operating environment (including operating system, processor instruction architecture) software that uses a U disk, the corresponding version must be provided, otherwise the encryption function of the U disk cannot be used

And when you only need to import files, you also need to enter the password of the U disk. The password may be stolen because the password is peeked, or the computer host using the U disk is infected with a virus or a Trojan horse, which will cause the encrypted file of the U disk to be illegally read. Pick

[0003] For the analysis of the above-mentioned prior art, the inventor believes that under the comprehensive consideration that the USB flash drive is used to enter files into the encrypted area on other people's machines, and others borrow the USB flash drive to copy files, the prior art is still not safe and convenient enough, which also makes The development of secure U disk products needs to provide multiple tool software versions across platforms, which increases the workload of software development and maintenance

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