A user-level file automatic encryption and decryption method and device
A file encryption, encryption and decryption technology, applied in the field of information security, can solve the problems of easy cracking and low encryption strength, and achieve the effect of ensuring privacy and safe file encryption/decryption
Active Publication Date: 2016-08-17
王志坚
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Problems solved by technology
[0004] In view of this, the purpose of the present invention is to propose a user-level file automatic encryption and decryption method and device with high encryption strength in which the real-time encryption and decryption of files is all completed in memory, so as to solve the problem of encryption strength caused by encryption and decryption in the prior art based on the application layer. Low, easy-to-crack problems
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[0032] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.
[0033] The embodiment of the present invention discloses a partition-based user-level file automatic encryption and decryption method, which can be applied to any computer terminal or server, and includes the following steps: creating an encrypted partition, loading an encrypted partition, and unloading an encrypted partition. The files in the partition are all loaded on the virtual disk created in the memory, and the files in the encrypted partition can be automatically encrypted and decrypted according to the user's command.
[0034] Such as figure 1 An example of creating an encrypted partition in step 1 is shown:
[0035] Step 101: Receive the original encryption parameters input by the user, including the selected enc...
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The invention discloses a user-level file automatic encryption and decryption method and device, which enhances the security of the system by creating encrypted partitions and setting encryption keys for partitions and files in the partitions. After the encrypted partition is loaded, the encryption / decryption service serves as a service resident memory to provide virtual disk driver services, and converts various user operation commands on the virtual disk application layer into various IRP requests through the kernel's I / O manager request, and passes them to the added Decryption software provides real-time and automatic encryption and decryption services. After unmounting an encrypted partition, the partition and files are encrypted again. The invention can complete all the encryption and decryption tasks in the memory without additional operation by the user, and no unencrypted files will be stored on the disk, thereby realizing automatic, transparent and safe file encryption / decryption.
Description
Technical field [0001] The invention relates to the technical field of information security, in particular to a user-level file automatic encryption and decryption method and device. Background technique [0002] With the rapid development of the information age, the Internet continues to penetrate into all aspects of people's lives and work, becoming an indispensable part. However, the rapid flow of information not only brings convenience and efficiency across time and space, but also brings challenges to personal information security. Due to the convenience of processing and transmitting information, the phenomenon of theft, tampering and reselling of personal information is increasing, which has seriously affected the normal life and work of the people, and even endangered property and personal safety. [0003] At present, there are many methods for file encryption on the market, and the common ones are based on the application layer. Files that need to be encrypted are encrypt...
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IPC IPC(8): H04L29/06
Inventor 杨志坚成连
Owner 王志坚