摘要
MP3Stego是目前最具有代表性的MP3隐写工具。对MP3Stego进行了分析,提出了改进方法:基于Logistic混沌模型的、可控隐写信道利用率的随机选择隐写单元方法;以密钥的Hash序列作为隐写信息提取结束标志;利用隐写信息的Hash序列,来验证提取信息完整性等。实验结果表明改进方法在不影响音频质量的情况下,提高了MP3Stego的隐藏率和安全性,使MP3Stego具有更高的实用性。
MP3Stego is the most representative MP3 stegannography tool.This paper analyzes and improves MP3Stego. The improved algorithm randomly selects the embedding units based on Logistic Chaos Model with controllable selecting rate.And it uses the Hash serial of the password as the label of detecting end-token.It also makes use of the Hash serial of the embedding information to ensure its integrity.The experimental results illustrate that the improved algorithm has higher embedding rate and security,while it does not affect the audio quality in audibility.The improved algorithm makes MP3Stego more practical.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第35期95-100,共6页
Computer Engineering and Applications
基金
国家863高技术研究发展计划资助项目(2005AA142110
2002AA119010-4)。
