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Method and device of small web format (SWF) file encrypting protection

A file encryption and encryption method technology, applied in the field of video playback, can solve problems such as confusing code, no solution, and failure to achieve SWF file encryption, etc., to improve processing efficiency, easy to understand, and reduce processing difficulty.

Active Publication Date: 2013-07-24
4399 NETWORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One is to obfuscate and encrypt the code in the SWF file to achieve the effect of obfuscating the code, but this method can be restored through a certain decryption method, so that the purpose of thorough encryption cannot be achieved;
[0005] The second is to convert the entire SWF file into another format file to achieve the encryption effect. Although it can protect codes and materials to a certain extent, this technology changes the storage form of the original SWF file, and can also pass A certain decryption method restores it, but cannot achieve the purpose of thoroughly encrypting the SWF file
How to effectively protect swf files, there is currently no effective solution

Method used

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  • Method and device of small web format (SWF) file encrypting protection
  • Method and device of small web format (SWF) file encrypting protection
  • Method and device of small web format (SWF) file encrypting protection

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, the flow chart A of the method for swf file encryption protection: the client submits the request for encrypting the swf file, and the client submits the encryption method A of the swf file at the same time; the swf file and the encryption method A are input through the file The interface is uploaded to the encryption processor; the encryption processor reads the swf file; the encryption processor parses the file header of the swf file; the encryption processor parses the swf file according to the file header of the swf file Carry out judgment, judge whether described swf file is the swf file of compression, carry out processing respectively:

[0036] When judging that the swf file is the compressed swf file, the encryption processor decompresses the compressed swf file, and performs the following steps on the decompressed swf file;

[0037] When judging that the swf file is not the compressed swf file, directly perform the following steps; ...

Embodiment 2

[0040] Such as figure 2 As shown, flow chart B of the swf file encryption protection method: the client submits a request for encrypting the swf file, and the client submits the encryption method B of the swf file at the same time; the swf file and the encryption method B are input through the file The interface is uploaded to the encryption processor; the encryption processor reads the swf file; the encryption processor parses the file header of the swf file; the encryption processor parses the swf file according to the file header of the swf file Carry out judgment, judge whether described swf file is the swf file of compression, carry out processing respectively:

[0041]When judging that the swf file is the compressed swf file, the encryption processor decompresses the compressed swf file, and performs the following steps on the decompressed swf file;

[0042] When judging that the swf file is not the compressed swf file, directly perform the following steps;

[0043] T...

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PUM

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Abstract

The invention relates to the field of video playing and particularly discloses a method and a device of small web format (SWF) file encrypting protection. A request for encrypting an SWF file and an encrypting mode are submitted by a client side and are uploaded to an encrypting processor through a file input interface; the SWF file is read and analyzed by the encrypting processer, a code portion and a material label portion which are analyzed from the SWF file are respectively encrypted, and the encrypted code portion or the encrypted material label portion is transmitted to a file generator; a new SWF file A is generated by the encrypted code portion through the file generator; a new SWF file B is generated by the encrypted code portion and the encrypted material label portion; and the new SWF file A or the new SWF file B is transmitted to a file memory for storing and transmitted to the client side by the file memory through a file output interface. Under the condition that normal operation of the SWF file is not damaged, codes and materials of the SWF file are encrypted and the purposes that the SWF file is effectively protected and difficult to be decrypted are achieved.

Description

technical field [0001] The invention relates to the technical field of video playing, in particular to a method and device for encrypting and protecting materials and codes in a swf file. Background technique [0002] swf (shock wave flash) is a special format for animation design software Flash. It is an animation file format that supports volume and dot matrix graphics. It is widely used in web design and animation production. swf files are used to create video, Sound, graphics and animation applications, create original content in Flash or import swf files from other Adobe applications (such as Photoshop or Illustrator), quickly design simple animations, and develop advanced interactive projects using Adobe AcitonScript 3.0 . Designers and developers use swf files to create presentations, applications, and other content that allow user interaction. [0003] In order to allow users to better appreciate swf files, operate and control swf files conveniently, and achieve be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10G06F21/60
Inventor 马华亨
Owner 4399 NETWORK