Hiding Short Secret Messages based on Linguistic Steganography and Manual Annotation

This article shows to what extent it is possible to develop a public simple mechanism for hiding information in natural language by means of the use of templates and manual annotation. The possibility of hiding a piece of information of a hundred of bits in a stegotext with a good linguistic quality is presented. This can be an interesting procedure for the exchange of cryptographic keys, urls, gps coordinates, mobilization messages, etc. The article shows examples for Spanish language, but the same idea it is possible in other languages.