摘要
提出一种基于小波域和均值量化的同步音频隐写术。首先对秘密信息进行Arnold变换,以此来消除其相关性,从而实现原始信息的不可知性隐藏;然后对原始载体信号进行离散小波变换,采用M序列作为同步信号,将需隐藏的信号与同步信号嵌入到低频系数的均值中,达到在不引起任何怀疑的情况下秘密传送信息的目的。实验证明,此算法安全性较高,有较强的抗噪声和低通滤波攻击的能力,并且提取时只需密钥和同步信号,比起盲隐藏法更简便、更具有可行性。
This paper reports on a method of synchronized audio steganography, which based on wavelet domain and average quantization. Arnold transformation to the secret information is taken first, aiming at elimi nating its correlation, thus, information hiding can be realized. Then, DWT is taken to the original informa tion, using M sequence as synchronized. After these two kinds of information being inserted into mean value of the low frequency coefficients, the goal of secret transmission without any suspicion can be achieved. Computer simulation and experimentation show that the algorithm in this paper has higher safety, better performance of antinoise and strong stability of antiattack in lowpass filtering . Moreover, because only key and synchronized information are needed in the process of extraction, this algorithm is also much easier and more feasible than blind hide
出处
《信息化研究》
2012年第4期18-21,共4页
INFORMATIZATION RESEARCH
基金
江苏省自然科学基金资助项目(BK2010546)
关键词
信息隐藏
均值量化
ARNOLD置乱
同步
information hiding
mean quantification
Arnold transformation
synchronization
