基于词平台汉字编码的文本信息隐藏算法  

Text Information Hiding Algorithm Based on Chinese Characters Coding in Words Platform

作　　者：张洪礼[1] 刘丹[1] 温学谦[1] 何新宇[1] 

机构地区：[1]燕山大学信息科学与工程学院,秦皇岛066004

出　　处：《计算机工程》2010年第7期150-152,共3页Computer Engineering

基　　金：国家火炬计划基金资助项目"基于SAAS的信息化共性技术服务平台"(国科发计[2008]658号)

摘　　要：文本信息隐藏是版权维护的一种重要手段,针对现有算法存在信息隐藏量不足、鲁棒性不高及多数仅适用于英文文本等问题,提出一种基于词平台汉字编码的文本信息隐藏算法,运用标志位和编码变换规则实现密文信息的嵌入,在算法的信息隐藏量和鲁棒性上有较大提高,增强密文信息的安全性。理论分析和实验结果验证了该算法具有一定实用性。Information hiding is an important way of copyright maintenance. But the existed algorithms have many problems in hiding capacity, robustness, and most of these are just suitable for English documents. Aiming at those problems, a novel information hiding algorithm is presented, which is based on Chinese characters coding method in words platfbml. The algorithm implements text embedding by using coding-transform rules and sign bits. The algorithm is improved greatly on inlormation hiding capacity and robustness, and is enhanced in security of secret information. Practicability is proved by theoretical analysis and experimental results.

关 键 词：信息隐藏 文本 词扩展 顺位编码 逆位编码 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]