基于Flash 动画的信息隐藏算法.pdf

文档介绍：计算机工程 2010 年 1 月
第 36 卷第 1 期
January 2010
V Engineering
·安全技术· 文章编号:1000—3428(2010)01—0181—03 文献标识码:A 中图分类号:
基于 Flash 动画的信息隐藏算法
张晓彦 1,2,张晓明 1
(1. 北京石油化工学院计算机系,北京 102617;2. 北京化工大学信息科学与技术学院,北京 100029)
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
Information Hiding Algorithm Based on Flash Animation
ZHANG Xiao-yan1,2, ZHANG Xiao-ming1
(1. Department puter, Beijing Institute of Petro-chemical Technology, Beijing 102617;
2. School of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029)
【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 h