File encryption and decryption processing method and file encryption and decryption system
An encryption processing and file technology, applied in the fields of electrical digital data processing, instruments, digital data protection, etc., can solve problems such as security risks in security methods, and achieve the effect of enhancing security and solving security risks.
Active Publication Date: 2019-10-15
BEIJING KEXIN HUATAI INFORMATION TECH
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[0004] The embodiment of the present application provides a file encryption and decryption processing method and an encryption and decryption system to at least solve the technical problem in the related art that the security method for encrypting and decrypting files still has potential safety hazards
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[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0024] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such...
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The invention discloses a file encryption and decryption processing method and a file encryption and decryption system. The method comprises the following steps: a protection subsystem in the trustedcomputing platform acquires historical access information of a to-be-encrypted file from a computing subsystem in the trusted computing platform, the computing subsystem is used for completing a computing task, and the protection subsystem is used for actively measuring and controlling the computing subsystem according to a trusted strategy; a trusted policy corresponding to the historical accessinformation is determined; andwhether to encrypt the to-be-encrypted file or not is judged according to the credible strategy, and the to-be-encrypted file is encrypted when a judgment result indicates that the to-be-encrypted file is encrypted. According to the method and the device, the technical problem that potential safety hazards still exist in a security mode of encrypting and decrypting the file in related technologies is solved.
Description
technical field [0001] The present application relates to the field of eye movement control, and in particular, relates to a file encryption and decryption processing method and an encryption and decryption system. Background technique [0002] In order to ensure the security of files, it is usually necessary to encrypt some files (for example, files with a higher security level), and when accessing the files, the files can only be accessed if the files are decrypted. When encrypting a file, the method of setting a file encryption password is usually adopted. When decrypting a file, it is necessary to input the correct password to realize decryption. Although the security of the file can be guaranteed to a certain extent by adopting the above scheme, there are still certain security risks in this password encryption and decryption method. For example, there is no guarantee that the password will not be illegally stolen. If the password is stolen, Then illegal access behavio...
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Login to View More IPC IPC(8): G06F21/60G06F21/62
CPCG06F21/602G06F21/6227
Inventor 孙瑜王强洪宇王涛
Owner BEIJING KEXIN HUATAI INFORMATION TECH