Flash data transmission method and system, as well as server and client

Abstract

The invention relates to the field of information and particularly relates to a Flash data transmission method and system, as well as a server and a client. The Flash data transmission method comprises the following steps that: a secret key obtaining rule shared by a Flash server and a Flash client is established; the Flash server determines a secret key confusion data block; the Flash server extracts a secret key from the secret key confusion data block according to the secret key obtaining rule; the Flash server encrypts the data to be transmitted through the secret key; the Flash server transmits the encrypted data and the secret key confusion data block to the Flash client; the Flash client extracts the secret key from the secret key confusion data block according to the secret key obtaining rule; and the Flash client decrypts the obtained encrypted data according to the secret key. The Flash server, the Flash client and the Flash data transmission system transmit data after using the encryption method. According to the invention, the security in the Flash network communication is improved.

Description

technical field [0001] The invention relates to the field of information, in particular to a Flash data transmission method and system, a server and a client. Background technique [0002] Flash is a tool for interactive vector graphics and Web animation launched by macromedia company, with which various animation works can be produced. People usually refer to animation works produced with Flash tools as Flash in life. [0003] Now the security of flash animation data in network communication faces two problems: 1. Illegal interception of data transmitted from the network to flash animation; if the server and the flash client transmit data in plain text, the user only needs to use a packet capture tool in the network By capturing the data packets communicated between the server and the flash client, you can illegally know the data of both parties. 2. Forge a legal client to illegally request to receive data; if the running file swf of the flash has not undergone any process...

AI Technical Summary

Problems solved by technology

[0003] Now the security of flash animation data in network communication faces two problems: 1. Illegal interception of data transmitted from the network to flash animation; if the server and the flash client transmit data in plain text, the user only needs to use a packet capture tool in the network By capturing the data packets communicated between the server and the flash client, you can illegally know the data of both parties

2. Forge a legal client to illegally request to receive data; if the running file swf of the flash has not undergone any processing, the user only needs to use the swf to crack the software to restore the as2 / as3 code, and then modify the code to compile again to complete the fake legal client end, and then illegally request to receive server data, the server cannot identify whether the client is illegal

In view of this situation, the security mechanism of flash network communication usually adopts the method of packing and encrypting the swf file. Now the popular packing software is SWFKit, and the popular software for encrypting the swf itself is: doswf, swf encrypt, This method is very easy to be cracked by cracking software, or to confuse the flash code. This method cannot fundamentally solve the problem of analysis after others obtain the code. In short, the security of Flash network communication is low.

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