This paper analyzes the statistical characteristics and finds the differences of the stego-text and natural lingual text by modeling the latter,which shows frangibility of the traditional algorithm.

• 该文通过对自然文本进行建模,分析隐密文本与自然文本的统计特征,得到其中的差异,证明了字典隐藏法存在一定的脆弱性。