Information insertion into vector matrices for steganography applications
Natalis Ransi^1), Muh. Ikram Marhiansyah^2), Edi Cahyono^2,*), Arman^2)

1) Department of Computer Science FMIPA Universitas Halu Oleo
2) Department of Mathematics FMIPA Universitas Halu Oleo
*) Email of correspondence: edi.cahyono[at]uho.ac.id

Abstract

Steganography is a technique of hiding secret data within an ordinary, non-secret, file or message in order to avoid detection. In this paper we introduce a concept of vector martices that is applied on steganography. A vector matrix is a matrix where the elements are vectors. Qualitatively, a vector matrix may be presented as a digital image. In this case the image size (in pixels) represents the dimension of the matrix. The elements of the matrix are 3-dimensional vectors of I^3, where I = {0, 1, 2, ..., 255}. We consider an information that will be hidden in a digital image. To do so, we convert the digital image into a vector matrix, transfering the information in ASCII, then inserting it into some elements of the matrix. We conduct a numerical experiment in python, and analyze the digital images before and after insertion.

Keywords: Digital image, steganography, vector matrix

Topic: MATHEMATICS AND STATISTICS