Algorithm of Text Information Hiding Based on Huffman Coding
Jie Dong · Jisuanji gongcheng · 2007
A natural language sentence can be transformed into a word tag string or a sentence pattern.This paper proposes a new information hiding algorithm based on Huffman code.The algorithm constructs code of patterns according to their distribution and transforms the secret message into a pattern by Huffman decoding and then computes the secret key of position which pattern appears in the cover text.Hidden message can be extracted by Huffman compression.The capacity of information hiding is also formulated.In the new scheme,text document doesn’t need any modification.