The Secret image hiding schemes using Steganography- Survey

Steganography is a clever technique for concealing information within a digital cover medium, and without causing any significant distortion or modification in this medium. There are many media that can hide information such as text, images, audio and video file, the stronger the method used, the more difficult it was to disclose. Image Steganography is the most common used, as digital images are widely used over the Internet. The importance of Image Steganography lies in maintaining the confidentiality and privacy of the information exchanged. One of the most commonly flexible and efficient used concealment techniques is the Least Significant Bit (LSB) replacement technology, but it is very simple and easy to break, so the hidden data must be unreadable. There are many algorithms employed to raise the security of hidden data. This paper surveyed some of recent researches and highlight modalities and encryption algorithms used to strength in LSB steganography.