File and folder safety protection method based on dynamic password and system thereof

Abstract

The invention discloses a file and folder safety protection method based on a dynamic password, comprising a dynamic password client for generating a dynamic password, and a dynamic password authentication server end for authenticating the dynamic password. When encrypting, the file or folder is encrypted after the authentication is passed; and when decrypting, the file or folder is decrypted after the authentication is passed. The invention also discloses a file and folder safety protection system based on a dynamic password, comprising a dynamic password client for generating a dynamic password, a dynamic password authentication server end, for authenticating the dynamic password, an encryption device for encrypting the file or folder after the authentication is passed when encrypting and a decryption device for decrypting the file or folder after the authentication is passed when decrypting. The invention applies the mode combining the dynamic authentication, encryption and decryption, can effectively prevent others from optionally accessing, copying and deleting the file and folder, so that the safety of the individual privacy is ensured.

Description

technical field [0001] The invention relates to the technical field of information security identity authentication, in particular to a dynamic password-based file and folder security protection method and system. Background technique [0002] With the popularity of personal computers, almost every user will have some important data stored in the personal computer. There may be digital photos, engineering drawings, technical materials, important chat records and some hard-won information. Some people even put passwords in a file because they use too many passwords and it is not easy to remember. Need to be protected. In general, these data often do not have other backups, which involves an unavoidable question, is this data safe? Once the data is lost, how much will the loss be, and can it be recovered? [0003] At the same time, personal computers are becoming lighter and lighter and more convenient to carry, which will also bring problems, that is, they are easy to lose...

AI Technical Summary

Problems solved by technology

In general, these data often do not have other backups, which involves an unavoidable question, is this data safe? Once the data is lost, how much will the loss be, and can it be recovered?

[0003] At the same time, personal computers are becoming lighter and more convenient to carry, which will also bring problems, that is, they are easy to lose, and also give some thieves an opportunity

From an economic point of view, it may not be very big, but if some important data files and reports, engineering data, etc. are stored in the computer, and some commercial spies with ulterior motives see it, the loss to the company will be immeasurable

In addition, some private and secret pictures and important chat records also need to be protected. If they are leaked, it may not only bring people a loss of money, but also damage their personal reputation. In serious cases, some people use privacy to blackmail computer owners

[0004] At present, the way to protect files and folders is generally to hide files or folders, forcing others to find them, such as "modifying the registry", "using DOS commands to hide", "setting permissions to prohibit access", "changing the path to deny access" " or "Modify file attributes", etc.

[0005] These methods will cause the following problems: first, there is no way to pass these pseudo-encrypted files to others; second, if you meet someone with a little computer knowledge, these data are easy to be stolen

[0006] Another method is to use a static password to form a static encryption and decryption key. However, due to the long-term invariability of the static key, the key will be leaked in many cases.

[0007] 1. The user will be watched by others or recorded by the camera when entering the password;

[0008] 2. The user's password is generally characteristic, such as: birthday, phone number, etc., which are easy to be guessed and exhausted by dictionaries;

[0009] 3. The user's password remains unchanged for a long time, and the danger of password leakage is increasing day by day

[0010] Therefore, static passwords are easy to leak and are not safe.

If you only rely on static passwords to protect the door of data security, the effect is not safe

Images