摘要： 针对Flash版权保护存在的问题和利用Flash进行隐秘通信的需求，提出基于Flash动画的信息隐藏模型及其隐藏算法。要求以字节数组的形式读入Flash文件，依据字节数组中每一字节中比特“1”的计数的奇偶性来进行嵌入和提取。实验结果表明，该算法对Flash动画的播放效果没有影响，可以起到加密的作用，具有隐藏容量高、安全性好等特点，在抗攻击方面也有一定表现。

关键词: Flash动画, 信息隐藏, SWF文件, 安全

Abstract: An information hiding model and its hiding algorithm is proposed along with to meet the need of copyright protection and covert communication of the Flash products. The Flash file is required to read in the form of byte array. The algorithm is desgined in embedding or extraction based on the parity of the number of bit ’1’ in each byte among the byte array. Experimental results show that the approach can not influence the playback effect of the Flash, and it can play the role of encryption. The method has features of high capacity, good security and anti-attack.

Key words: Flash animation, information hiding, SWF file, security

中图分类号: 

• TP309.2