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Data Hiding in Documents

Malware is any malicious software to cause damage to computer systems. Data hiding is related to hide the secret data without existence of the secret data to the third parties. Recently, data hiding methods are used to intrude anti-virus programs without detection. In this paper, structure of documents are analyzed to embed secret message and the embedding and extracting algorithms are proposed in documents. The experimental results show that the proposed method can hide the secret message into documents and extract the secret message in the receiver side without extra information.