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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

Inactive Publication Date: 2013-09-04
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this encryption and decryption method is inconvenient to operate, and the security is not high, and it has not been able to meet the needs of users.

Method used

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  • File encrypting and decrypting method and device based on mobile phone
  • File encrypting and decrypting method and device based on mobile phone

Examples

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Embodiment Construction

[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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PUM

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Abstract

The invention discloses a file encrypting and decrypting method based on a mobile phone. The file encrypting and decrypting method based on the mobile phone comprises the steps that specific information of the mobile phone is stored in an NFC module, the NFC module reads the information stored in a non-contact IC card, whether the information stored in the non-contact IC card is conformed with the specific information or not is judged, and a file using port is closed or opened to achieve encryption or decryption if the information stored in the non-contact IC card is conformed with the specific information. The encryption and the decryption of the file encrypting and decrypting method based on the mobile phone are convenient to operate, swift in operation, and high in safety. The invention further discloses a file encrypting and decrypting device.

Description

technical field [0001] The invention relates to the field of mobile terminals applying near field communication, in particular to a mobile phone-based file encryption and decryption method and device. Background technique [0002] In recent years, non-contact IC cards have been widely used in public transportation, access control, electronic payment and other fields. Correspondingly, various types of non-contact IC card identification devices are also developing rapidly. Among them, NFC (Near Field Communication, near field communication) is a relatively advanced technology, which enables two electronic devices to communicate directly in a short distance, and the working distance is only a few centimeters. NFC is widely used in mobile payment, product anti-counterfeiting, tracking supervision, digital signature, information acquisition and other fields. In addition to completing the interface and protocol of contactless communication, it must also have the function of commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10G06F21/60H04B5/00
Inventor 曾元清朱文彬
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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