Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A hidden Markov model for deciphering stegoscripts. It consists of two submodels, the 'secret message model' is for motifs and the 'covertext model' for background words. The blue boxes with dashed outlines each represent a word node, which is a combination of several position nodes. Node Wb is a single-base node and always belongs to the covertext model. States S, B, and M do not emit any letter.
