Aplikasi Algoritma Kriptografi dan Steganografi untuk Keamanan Informasi Berbasis Teks

  • Wiji Lestari STMIK Duta Bangsa Surakarta
  • Supardi Supardi STMIK Duta Bangsa Surakarta
  • Afu Ichsan Pradana STMIK Duta Bangsa Surakarta

Abstract

This study will produce a system of text-based information security applications using
cryptography algorithms Hill Code and Steganography LSB (Least Significant Bit). System
information security applications are built to be used for text-based data security. The algorithms
used for cryptography is Hill Code with a matrix of 2 x 2sebagai encryption keys, whereas the
description used for the inverse of a matrix initial key. Steganography algorithm used is the LSB
(Least Significant Bit) insertion in every bit of content (confidential data) into a low bit or bits of the
far right. As known to a bitmap (.bmp) 24 bits consist of three pixels in which each pixel is a collection
of 8 bits or 1 byte (a value between 0 to 255atau in binary format between 00000000 to 11111111),
who presented the value of the intensity of the light that forms the base color namely red, green or
blue (red-green-Blue or RGB). Thus in each pixel can be inserted 3 content. The results of the
implementation and testing of the system shows that the system is running well, the implementation of
the algorithm results are consistent with the manual calculation.
Keywords: Information Security, Cryptography, Steganography, Hill Code, Least Significant Bit

Author Biographies

Wiji Lestari, STMIK Duta Bangsa Surakarta

Program Studi Sistem Informasi, STMIK Duta Bangsa Surakarta

Supardi Supardi, STMIK Duta Bangsa Surakarta

Program Studi Sistem Informasi, STMIK Duta Bangsa Surakarta

Afu Ichsan Pradana, STMIK Duta Bangsa Surakarta

Program Studi Teknik Informatika, STMIK Duta Bangsa Surakarta

Published
2016-09-12