Document protecting method, document protecting devices and document protecting system
A technology for protecting equipment and documents, applied in transmission systems, digital data protection, instruments, etc., can solve the problems that the document protection client cannot work, cannot perform file encryption and decryption operations, etc.
Inactive Publication Date: 2015-01-28
深圳市大成天下信息技术有限公司
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Problems solved by technology
Users are likely to move their computing equipment outside the company, such as carrying a notebook used in the company on a business trip, etc. At this time, since the document protection server is deployed inside the company, the computing device cannot connect to the document protection server As a result, the document protection client on the computing device cannot function, and cannot perform normal file encryption and decryption operations
[0006] In this way, although this solution can effectively prevent the content of the document from leaking, it also has too much inconvenience for the user to go out temporarily
Method used
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[0027] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0028] figure 1 A schematic structural diagram of a document protection system 100 according to an embodiment of the present invention is shown. Such as figure 1 As shown, the document protection system 100 includes a document protection server 110 and one or more computing devices 120 that are communicatively connected with the document protection server 110 via a network. A document protection device 200 (...
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The invention discloses a document protecting method, document protecting devices and a document protecting system. Each document protecting device comprises a secret key import device, a state verifier and a document controller. Each secret key import device is applicable to importing user authority information into the corresponding state verifier, the user authority information is exported from a document protecting server and contains user identification and relevant valid time ranges, and resident computing devices in the document protecting devices with the user identification are allowed not to be in heartbeat connection with the document protecting server within the valid time ranges; each state verifier is applicable to determining whether contents of documents in the corresponding computing device are allowed to be decrypted or not according to whether the current time is within the corresponding valid time ranges of the document protecting device or not; each document controller is applicable to invoking the corresponding state verifier to determine whether the read contents of the documents are allowed to be decrypted or not when the contents of the documents are read by monitored applications. The document protecting method, the document protecting devices and the document protecting system have the advantage that document encryption and decryption operation can be normally carried out on document protecting clients which temporarily lose contact with the document protecting server.
Description
Technical field [0001] The invention relates to the fields of computers and the Internet, in particular to a method, equipment and system for document protection. Background technique [0002] With the popularization and development of computer technology and network technology, abundant network data resources have brought great convenience to people's lives, but also brought a lot of confusion. For example, in an enterprise, it is easy for employees to send some documents involving enterprise secrets outside the enterprise, which leads to the disclosure of documents. Therefore, it is possible to protect the document to prevent the content of the document from being transmitted. [0003] A current solution to protect documents is to encrypt and decrypt documents, that is, install a document protection client on the user's computer, and the document is stored in the document memory in cipher text, so that when the user needs to browse the content of the document, the encrypted The...
Claims
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IPC IPC(8): G06F21/62H04L29/06
CPCG06F21/62G06F2221/2107
Inventor 黄鑫
Owner 深圳市大成天下信息技术有限公司