Read-only mode mobile storage device and data access method thereof

Abstract

The invention provides a read-only mode mobile storage device. The device comprises a processing chip, a data transmission unit, a storage unit and a user authorization management module, wherein the processing chip is responsible for controlling command transmission and execution in a whole system; the data transmission unit is used for providing an interface for the mobile storage device to communicate with peripheral equipment; the storage unit is used for storing data; and the user authorization management module is connected with the processing chip and used for managing access modes of files, judging category of a user access data command, permitting the user to read data if the data command is read-only, sending a prompt of needing to input verification information to the user if the user access data command is non-read data command, permitting the user to perform the non-read data command if verification passes, and otherwise rejecting the user to perform the operation. By the device, a product owner can perform data reading, deletion, modification and the like, non-product owners can only read the data, and accordingly data disclosure can be permitted on the basis of guaranteeing file completeness and originality.

Description

【Technical field】 [0001] The invention relates to a mobile storage device, in particular to a mobile storage device in a read-only mode that only allows a user to read data and a method for accessing data. 【Background technique】 [0002] With the development of electronic technology and the wide application of computers, the storage of file data is very important to everyone. How to effectively protect personal or corporate file data and prevent illegal operations has become a topic of concern. [0003] In order to ensure the security of files during storage and transmission, various security technologies are constantly emerging. For example, the most commonly used fingerprint identification technology at present, the Chinese patent publication number CN1314655 discloses a fingerprint hard disk, which discloses a technical solution for applying a fingerprint reader to a hard disk, so as to use fingerprints for identity identification. Only the user himself can enter the sto...

AI Technical Summary

Problems solved by technology

[0005] However, in all the above-mentioned solutions, operations such as viewing, modifying, and deleting files can only be performed after the user obtains the corresponding authentication information.

However, for some special files or special needs of users, users want the files to be viewable publicly, but people who can view or read files publicly cannot perform operations other than viewing files, such as modifying, deleting, writing, etc., so It can guarantee the integrity and originality of files. For example, some educational institutions issue storage devices with fixed content. The fixed content in the storage device is unique to educational institutions. Educational institutions only hope that users can read data, but not write , modification, deletion and other operations, for such a requirement, a new mobile storage device is required to manage the access mode of files

Images