摘要
文章以在鲁棒性、不可感知性等方面表现较好的直接序列扩频(DSSS)技术为基础,对传统的直接序列扩频算法进行了改进,创新性地提出了一种基于离散余弦变换(DCT)的盲性音频隐写算法,解决了基于直接序列扩频隐写方法较难解决的盲提取问题。同时,该隐写算法具有较高的不可感知性,且在嵌入的密文容量没有超过音频最大容量的前提下,具有接近100%的正确提取率。
This paper is based on the algorithm robustness, imperceptibility performed better in all aspects of the DSSS （direct sequence spread spectrum） algorithm, at the same time improves the traditional DSSS algorithm, and innovatively proposes a DCT-based （discrete cosine transform） blind audio steganography to solve the difficulty in DSSS steganography method for the blind extraction. Meanwhile, the steganographic algorithm achieves high imperceptibility, and in the embedded audio cipher text capacity does not exceed the maximum capacity of the premise, almost 100% correct extraction rate.
出处
《信息网络安全》
2013年第9期60-63,共4页
Netinfo Security
基金
中央高校基本科研业务费[FRF-TP-12-075A]
关键词
信息安全
音频
离散余弦变换
隐写
盲提取
information security
audio
discrete cosine transform
steganography
blind extraction
