Subscriber stage 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: 2014-01-15
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 object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0033] A partition-based user-level file automatic encryption and decryption method disclosed in the embodiment of the present invention 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. When loading an encrypted partition, the All the files in the partition are loaded to 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 embodiment of creating an encrypted partition as shown in step 1:
[0035] Step 101: Receive the original encryption parameters inp...
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The invention discloses a subscriber stage file automatic encryption and decryption method and device. By establishing an encryption partition and setting an encryption key of the partition and encryption keys of files in the partition, the safety of a system is enhanced. After the encryption partition is loaded, an encryption / decryption service serves as a service resident memory to provide a virtual disk driving service to convert various operation instructions in application layers of a virtual disk of a user into various IRP requests through an I / O manager of the kernel, and the various IRP requests are transmitted to encryption and decryption software for a real-time and automatic encryption and decryption service. After the encryption partition is unloaded, the partition and the files are in the encryption state again. According to the subscriber stage file automatic encryption and decryption method and device, all encryption and decryption tasks can be completed in the memory, additional operation by the user is not needed, unencrypted files will not be stored onto a disk, and automatic, transparent and safe file encryption and decryption can be achieved.
Description
technical field [0001] The invention relates to the technical field of information security, in particular to a method and device for automatically encrypting and decrypting user-level files. 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 across time and space, but also brings various challenges to the security of personal information. Due to the convenience of processing and transmitting information, the phenomenon of misappropriation, tampering and reselling of personal information is increasing, seriously affecting the normal life and work of the people, and even endangering 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 to be encrypted ar...
Claims
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Inventor 杨志坚成连
Owner 王志坚