摘要
现有文本信息隐藏算法大多针对载体文本结构或语义进行修改,很可能引起明显异常,算法存在隐蔽性不足与抗检测能力较差等问题。基于汉明码的自我纠错能力,提出了一种利用文本结构特征编码的无载体文本信息隐藏算法。对信息码文本进行结构特征编码处理,根据秘密消息的位置编码对信息码进行修改,得到处理后的监督码,搜索匹配的监督码文本载体进行传输。实验结果表明,该算法具有较好的可实现性,安全性也有所增强,能够广泛地应用于即时通信。不需要对载体文本进行修改,因而隐蔽性方面有一定的改进。
Mostof the existing text information hiding algorithms modify the text structure or semantics of the carrier, which is likely to cause obvious abnormalities. These algorithms have problems such as insufficient concealment and poor anti-detection ability. Based on the self-correcting ability of Hamming code, a coverless text information hiding algorithm which uses text structure feature encoding is proposed. The text of information code is encoded with structural features. And the information code is modified according to the location code of secret messages. The corresponding supervision code after processing is obtained, and the matched supervision code text cover is searched for transmission. The experimental results show that the algorithm has good reliability and security,which can be widely used in the instant messaging.There is no need to modify the cover text, so there is some improvement in the concealment.
作者
吴金阔
郭振波
WU Jin-kuo;GUO Zhen-bo(College of computer science and technology,Qingdao university,Qingdao 266071,China)
出处
《青岛大学学报（自然科学版）》
CAS
2019年第2期62-66,72,共6页
Journal of Qingdao University(Natural Science Edition)
基金
国家自然科学基金(批准号:U1536113)资助
关键词
信息隐藏
文本结构特征
汉明码
位置编码
information hiding
text structure features
hamming code
location code
