File duplication frequency encryption method of man machine interface
A human-machine interface, encryption method technology, applied in the direction of digital data protection, electronic digital data processing, computer security devices, etc.
Inactive Publication Date: 2009-06-03
DELTA ELECTRONICS INC
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[0004] However, in this era of advanced technology, the level of information security is not as good as before. These digital files are often stolen maliciously by hackers, causing these files to fall into the hands of unknown persons. Therefore, the digital files are encrypted to make it necessary It is only readable after entering a password key or other authentication, which is a major topic in information security research. However, although there are many file encryption technologies developed on the market, it is still difficult to prevent those who are willing to crack. And once it is cracked, the encryption mechanism on the file will be useless, and the cracked file will be used without restriction, which will greatly endanger the rights and interests of the owner of the file. Furthermore, many encryption technologies currently used in the market , are all designed on the premise that the files will be used on the computer. There is no encryption method specially designed for these files used on the man-machine interface. In this way, these files used on the man-machine interface, other Security is really worrying
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[0030] With regard to the preferred specific embodiments of the present invention, the detailed description is as follows with reference to the accompanying drawings.
[0031] See first figure 1 , is a simple architecture diagram of a preferred embodiment of the present invention, composed of figure 1 It can be seen that the structure of the present invention can be roughly divided into four parts, which are a portable storage device 1 , a computer 2 , a setting terminal man-machine interface 3 and a plurality of use terminal man-machine interfaces 4 . Through the storage device 1, the file 11 can be exchanged and transmitted with the above three media through three different steps.
[0032] 1. Editing steps: the file 11 is written and edited on the computer 2. After the file 11 is written and compiled into a file 11 that can be used by the man-machine interface, a key is set for the file 11 and opened. The copy times checking function of the file 11 is finally saved to the ...
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The invention provides a file duplication frequency encryption method of a man machine interface; after file edit is finished, the files are stored into a portable storage device and connected to the man machine interface at the set terminal; the reproducible frequency of the files in the storage device is set, and the storage device is encrypted, so that the storage device and the files can not be used in a separated way; when the storage device is connected to the man machine interface at the using terminal which is about to duplicate the files, the man machine interface at the using terminal judges whether the reproducible frequency of the files is more than zero time or not, if the reproducible frequency of the files is not more than zero time, the files can not be duplicated, so that the reproducible frequency of the files is further limited.
Description
technical field [0001] The present invention relates to an encryption method, in particular to an encryption method capable of limiting the number of file duplications. Background technique [0002] Human Machine Interface (HMI, Human Machine Interface), or Operator Interface (OI, Operator Interface), is an intermediary for information exchange, communication and interaction between machines and operators. Or the touch image on the window panel to complete the input of instructions, so that these machines will generate corresponding actions for the instructions input by the operator, so as to improve the convenience and practicability of the operator in machine operation. Therefore, the human-machine interface not only makes Industrial automation control is more convenient to implement, and has even gradually completely replaced the traditional control panel that requires a lot of wiring. [0003] The operation of the new HMI is mainly displayed on the external touch liquid...
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IPC IPC(8): G06F21/00G06F21/60
Inventor 吴青阳洪文旺李文凯郭旭原
Owner DELTA ELECTRONICS INC