Permutation Encoding for Text Steganography: A Short Tutorial
This is an incremental method for steganography practitioners, leveraging ubiquitous but often unused lists as channels.
The paper tackles the problem of encoding secret messages for text steganography by using factoradic numbering of permuted lists, providing encoding and decoding methods with code and formal proofs of correctness.
We explore a method of encoding secret messages using factoradic numbering of permuted lists of text or numeric elements. Encoding and decoding methods are provided, with code, and key aspects of the correctness of the methods are formally proven. The method of encoding is simple and provides a working example of using textual and numeric lists as a stenagographic channel. Given the ubiquity of lists, such channels are already present but are often unused.