Cover Text Steganography: N-gram and Entropy-based Approach

Steganography is an ancient technique for hiding a secret message within ordinary looking messages or objects (e.g., images), also known as cover messages. Among various techniques, hiding text data in plain text file is a challenging task due to lack of redundant information. This paper proposes two new approaches to embed a secret message in a cover text document. The two approaches are n-gram and entropy metric-based generation of stego text. We provide examples of encoding secret messages in a cover text document followed by an initial evaluation of how well stego texts look close to the plain texts. Furthermore, we also discuss several related work as well as our future work plan