File encrypting and decrypting method and device based on mobile phone
A file encryption and mobile phone technology, applied in the direction of electrical components, program/content distribution protection, digital data protection, etc., can solve the problems of inconvenient operation and low security, and achieve high security, convenient and fast encryption and decryption methods Effect
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[0017] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which like reference numerals represent like elements. As described above, the present invention provides a mobile phone-based file encryption and decryption method and device, which have convenient and quick encryption and decryption operations and high security.
[0018] Please refer to figure 1 , figure 1 A flow chart of an embodiment of a mobile phone-based file encryption and decryption method of the present invention is shown. The method includes the following steps:
[0019] 101. Store specific information of the mobile phone in the NFC module.
[0020] 102, the NFC module reads the information stored in the contactless IC card.
[0021] 103. Determine whether the information stored in the non-contact IC card is consistent with the specific information, and if so, close or open the file usage port to implement encryption or decryption (103a), otherwise t...
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