Data secure storage method of mobile terminal based on virtual disk

Abstract

The invention provides a data safety storage method of a mobile terminal based on a virtual disk, belonging to the information safety field. The invention firstly creates an independent disk partitionin a hard disk, and simulates a disk partition by creating a file with a fixed size, and then formats the file content into a user-defined file system, so as to simulate the file into a disk, namelya virtual disk. Finally, combining with the real-time encryption technology, the encryption and decryption methods can be added in the process of reading and writing the disk to ensure the security ofthe data. The invention customizes the encrypted file system for the independent disk partition, constructs the encryption and decryption pipeline of the plaintext in the memory and the ciphertext onthe disk, avoids the plaintext traces left by the disk, and provides transparent data protection. The invention has higher security and flexibility, provides powerful protection for data in mobile terminal, can customize encrypted file system and identity authentication mechanism, and also can provide multiple encryption algorithms and working modes.

Description

technical field [0001] The invention belongs to the field of information security, and in particular relates to a method for safely storing data in a mobile terminal based on a virtual disk. Background technique [0002] While the mobile phone is convenient for people's life, the safety problem among them is becoming more and more serious. With the rise of the smart phone boom led by the Android system, many malware are gradually targeting mobile phones. According to statistics, the number of new malware and Trojan viruses in 2016 has reached the order of 100,000. The hazards include harassing calls, malicious text messages, spam text messages, fraudulent calls, and stealing users' Internet traffic to make calls in the background and send spam text messages. Send SMS etc. Especially with the increase of mobile storage capacity and the improvement of information processing capability, the amount of personal information processed by mobile phones increases, and more and...

AI Technical Summary

Problems solved by technology

Either the security is not good enough, or the performance consumption of the two solutions is too high, and they cannot fully meet the needs of data security storage in mobile phones.

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