Method for encrypted storage, reading and deletion of files of mobile terminal

Abstract

The invention discloses a method for encrypted storage, reading and deletion of files of a mobile terminal. The encrypted storage process comprises the following steps of establishing an index table,wherein the index table is established for the files to be encrypted; fragmenting the files, wherein the files to be encrypted are divided into multiple fragments; marking the fragmented files, wherein information marks are added on the fragmented files; encrypting the fragmented files, wherein the fragmented files added with the marks are encrypted; archiving the encrypted files, wherein the encrypted files are archived and stored. By means of the method, file data of an application of the mobile terminal can be effectively and safely protected, and the important file data information of theapplication cannot be disclosed or tampered.

Description

technical field [0001] The invention relates to the field of mobile terminal file management, in particular to a technique for encrypted storage, reading and deletion of mobile terminal files. Background technique [0002] While mobile terminal devices bring convenience to people's lives, they also create many problems that need to be solved, such as privacy leaks, mobile phone viruses, spyware, etc. The biggest risk users face is that the device is lost or stolen. Anyone who owns the device can get the information stored on the device. The data of mobile device applications is usually stored locally in local files or local databases, which largely depends on the protection provided by the application on the device for the stored data. If you want to meet strict security requirements, such as financial data, confidential files, etc., you can only build better protection measures in the application. If the local data is not protected, it is likely to be obtained or tampere...

AI Technical Summary

Problems solved by technology

If you want to meet strict security requirements, such as financial data, confidential files, etc., you can only build better protection measures in the application. If the local data is not protected, it is likely to be obtained or tampered with by attackers, resulting in Serious consequences

At present, the traditional file encryption system on the market only encrypts the file content itself. This method has the possibility of being cracked by the corresponding decryption algorithm; This file has a certain association, resulting in a decrease in system security

Images