Method and system for protecting computer document content
A computer and document technology, applied in the field of computer information processing, can solve problems such as low efficiency, achieve the effects of reducing the difficulty of encryption, improving encryption efficiency, and reducing the burden of network transmission
Inactive Publication Date: 2015-11-25
PEKING UNIV FOUNDER GRP CO LTD +2
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Problems solved by technology
[0006] The present invention provides a method and system for protecting computer document content, which is used to solve the problem of low efficiency existing in the prior art for computer document content protection
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[0024] In order to improve the efficiency of computer document content protection, the embodiment of the present invention proposes a computer document content protection method and system. The main implementation principles, specific implementation processes and corresponding achievable results of the embodiments of the present invention are described below in conjunction with the accompanying drawings in the specification. The beneficial effects are explained in detail.
[0025] In the embodiment of the present invention, the code corresponding to the characters in the computer document content is converted from a standard code to a secure code that is different from the standard code but is mapped to the standard code, and the computer file is stored and transmitted in a secure code manner In this way, when the computer document is opened with the standard font, the content of the computer document will display meaningless characters; if the secure font is used as the display f...
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The invention discloses a method and a system for protecting computer document contents, which are used for solving the low efficiency problem encountered by the prior art in the protection of the contents of computer documents. The main technical scheme of the invention comprises: establishing a safe word bank, storing the safe word bank in a network server, establishing a mapping relationship between the safe codes of the characters in the safe word bank and standard codes, and storing the mapping relationship into a code conversion module; converting the characters in the computer documents from standard codes into safe codes according to the mapping relationship, storing the safe codes, and setting the safe word bank as the display word bank of the computer documents; and when the document is opened by the computer, acquiring the safe word bank from the network server, and displaying the characters in the documents according to the safe codes of the safe word bank. According to the technical scheme, the automatic default protection of the contents of the computer documents can be realized. Meanwhile, independent recording of a secret key is avoided, the encrypting difficulty is reduced, the encrypting efficiency is improved, and the safe word bank does not need to be transmitted during the transmission of the computer documents.
Description
Technical field [0001] The present invention relates to the technical field of computer information processing, in particular to a method and system for protecting computer document content. Background technique [0002] At present, the international coding standard ISO / IEC10646:2003 that has been promulgated, and the upcoming national coding standards GB13000 and GB18030 have included CJK unified Chinese characters, CJK unified Chinese characters expansion set A, and CJK unified Chinese characters expansion set B, totaling 70195 characters. [0003] Various standard font libraries generated according to these coding standards are used in the display of various computer documents, such as WORD format documents. However, the content of each computer file uses real standard coding, which facilitates transmission and information exchange, but also brings about resource loss and content leakage problems. [0004] However, the existing method of encrypting computer files with document pa...
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IPC IPC(8): G06F21/62G06F21/60
Inventor 高玉军吕肖庆唐英敏
Owner PEKING UNIV FOUNDER GRP CO LTD