Protection method and system of data in USB memory device and memory device

Abstract

The invention is applicable to the technical field of memory, and provides a protection method and a protection system of data in a USB memory device and a memory device. The method comprises the following steps of: when detecting that the USB memory device is connected with a computer system, virtualizing the USB memory device to be a compact disc recorder and an erasable recording disc and reporting the compact disc recorder and the erasable recording disc to the computer system; when the computer system performs enumeration operation on the USB memory device, performing answering operationon an enumeration process by adopting a bootstrap program of the compact disc recorder; and when the computer system performs control and data operation on the virtual compact disc recorder and the erasable recording disc, converting control commands and data operation of the virtual compact disc recorder and the erasable recording disc into control and data operation of the USB memory device. Inthe method, the system and the device, erasing of data is realized by the bootstrap program of a standard recorder and data accessing is realized through a standard compact disc operation command, sothat the safety of the data stored in the USB memory device is effectively protected.

Description

technical field [0001] The invention belongs to the technical field of storage, and in particular relates to a data protection method, system and storage device in a USB storage device. Background technique [0002] There are two main methods for protecting data stored in a USB storage device in the prior art: [0003] 1. Users use third-party software for protection, such as using compression software to package and encrypt data, or using special tools to encrypt at the file system level. The disadvantage is that special tools are required to encrypt, and corresponding software is required to Decryption operation, poor versatility and cross-platform. [0004] 2. Use the special tools provided by the USB storage solution provider to encrypt the data, for example, write the data into a specific area through a special tool, and then virtualize itself into a read-only CD for the computer system to access. The disadvantage is that it requires a specific The tool can only be re...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiment of the present invention is to provide a method for protecting data in a USB storage device, aiming to solve the problem that the protection method for data in a storage device provided by the existing solution cannot effectively protect the security, operability and cross-platform of user data poor problem

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