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Batch encryption method and device for SWF (Shockwave Flash) files developed by AS2.0 scripts

An encryption method and technology of an encryption device, which are applied in the field of video playback, can solve problems such as low efficiency and occupy hard disk space, and achieve the effect of improving encryption efficiency.

Active Publication Date: 2013-07-31
4399 NETWORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technology described in this patented describes how users can efficiently share encrypted data across different devices without having them be constantly connected for communication or accessing their memory space. This makes it possible to improve security measures while reducing storage requirements on clients.

Problems solved by technology

The technical problem addressed in this patented solution is how efficiently encrypted video data (SWF) files may be protected against unauthorized access or modification during storage on computer systems without requiring users' physical memory consumption.

Method used

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  • Batch encryption method and device for SWF (Shockwave Flash) files developed by AS2.0 scripts
  • Batch encryption method and device for SWF (Shockwave Flash) files developed by AS2.0 scripts
  • Batch encryption method and device for SWF (Shockwave Flash) files developed by AS2.0 scripts

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Embodiment Construction

[0031] figure 1 The flow chart of the first embodiment of the batch encryption method for SWF files developed by the AS2.0 scripting language of the present invention, as figure 1 As shown, the batch encryption method of the SWF file developed by the AS2.0 scripting language provided by the present embodiment is executed by the batch encryption device of the SWF file developed by the AS2.0 scripting language, the device is arranged on the server on the network side, and the device Get the user to upload source SWF files in batches from the terminal side, encrypt each source SWF file separately, and compress and send the encrypted source SWF files to the local directory of the terminal. The device can be implemented in the form of software and / or hardware, and the method includes:

[0032] Step S100, obtaining the source SWF file uploaded by the user;

[0033] Step S102, analyzing the source SWF file to obtain file header information, judging whether the version type of the s...

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Abstract

The invention provides a batch encryption method and a batch encryption device for SWF (Shockwave Flash) files developed by the AS2.0 scripts. The batch encryption method comprises the following steps: acquiring source SWF files uploaded by a user; analyzing the source SWF files to acquire file header information, and judging whether version types of the source SWF files are AVM1 (ActionScript Virtual Machine) types according to the file header information; if the version types are the AVM1 types, according to the file header information, positioning to a DOACTION tag and a DOINITACTION tag, and obfuscating and encrypting the DOACTION tag and the DOINITACTION tag; and recombining all the encrypted tags to generate encrypted SWF files. Through batch uploading of the SWF files to the batch encryption device for the SWF files developed by an AS2.0 scripting language, the user can encrypt a large number of SWF files developed by the AS2.0 scripting language in batches, so that the encryption efficiency is greatly improved and hard disk resources on the client side are not occupied.

Description

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Claims

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Application Information

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Owner 4399 NETWORK
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