X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/canny.git/blobdiff_plain/963b0c034c8a7c7f1fb77fc6b06e3ba6744c1dbd..3cb99fa4936f62fef8a0f24880e7d9bca9c31a9e:/ourapproach.tex diff --git a/ourapproach.tex b/ourapproach.tex index 02d8735..3319b6a 100644 --- a/ourapproach.tex +++ b/ourapproach.tex @@ -1,5 +1,5 @@ The flowcharts given in Fig.~\ref{fig:sch} summarize our steganography scheme denoted by -STABYLO, which stands for STeganography with Canny, Bbs, binarY embedding at LOw cost. +STABYLO, which stands for STeganography with cAnny, Bbs, binarY embedding at LOw cost. What follows successively details all the inner steps and flows inside both the embedding stage (Fig.~\ref{fig:sch:emb}) and the extraction one (Fig.~\ref{fig:sch:ext}). @@ -169,7 +169,8 @@ polynomial time. \subsection{Data Extraction} Message extraction summarized in Fig.~\ref{fig:sch:ext} follows data embedding since there exists a reverse function for all its steps. -First of all, the same edge detection is applied (on the 7 first bits) to get set, +First of all, the same edge detection is applied (on the 7 first bits) to +get the set of LSBs, which is sufficiently large with respect to the message size given as a key. Then the STC reverse algorithm is applied to retrieve the encrypted message. Finally, the Blum-Goldwasser decryption function is executed and the original