System and method for on-line adding of instant file dynamic label and on-line encryption

Abstract

The invention discloses a system and method for the on-line adding of an instant file dynamic label and on-line encryption, and the system and method are used for converting each file, and adding at least one label which has the information related with the file and a user. According to the demands of the user, the system and method carry out encryption of the file, so that the user decrypts and watches the file. The method comprises the steps: firstly transmitting at least one file through a data input unit; secondly converting the file from the data input unit into a file at a format of PDF through a first conversion unit, and adding the label, which has the information related with the file and the user, through a label adding unit; thirdly carrying out the encryption of the file from the first conversion unit through an encryption unit, forming an encrypted file, and generating a corresponding decryption key; and finally enabling the encrypted file and the corresponding decryption key to be respectively transmitted to a first storage unit and a second storage unit for storage.

Description

technical field [0001] The present invention relates to a system and method for adding dynamic tags to files, encrypting and decrypting files, and viewing file content online, especially about allowing users to read confidential files online and read confidential files offline. Authenticity, controllability, usability, integrity, and non-repudiation performance greatly reduce the file capacity after adding labels related to user information, and use multiple high-level encryption standards to encrypt files separately, and Includes methods for optimizing the allocation of system resources. Background technique [0002] For the operation of general governments, banks, national defense, enterprises, organizations, and medical institutions, the information circulating within them refers to the information generated, collected or used by the government, banks, national defense, enterprises, organizations, and medical institutions during their operations. material. There are man...

AI Technical Summary

Problems solved by technology

However, if the user password or key is leaked or stolen, the files in all folders in the user account can be viewed, shared, accessed, modified and deleted at will, and many information security crises are hidden, such as , the management of general computer rights sharing cannot prevent the sharer from using software, smart phones, digital cameras, and video cameras to intercept the sharer's screen, and immediately use instant messaging software such as Wechat, Line, QQ, Skype and Whtasappp and email to send important information To personal smart devices such as smartphones, smart tablets, private cloud drives, public cloud drives, other people's mailboxes, bring your own device (Bringyourowndevice)

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