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Hiding the Text Messages of Variable Size using Encryption and Decryption Algorithms in Image Steganography
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 61 - Number 6 |
| Year of Publication: 2013 |
| Authors: Suresh Kumar, Ganesh Singh, Tarun Kumar, Maninder Singh Nehra |
10.5120/9936-4571
|
Suresh Kumar, Ganesh Singh, Tarun Kumar, Maninder Singh Nehra . Hiding the Text Messages of Variable Size using Encryption and Decryption Algorithms in Image Steganography. International Journal of Computer Applications. 61, 6 ( January 2013), 47-52. DOI=10.5120/9936-4571
Abstract
Steganography is a science and art of communicating in writing such a way that the presence of message is detected. Steganography is focuses on hiding of a secret message into ordinary messages and the extraction of this message into its destination using provided techniques in such a way only sender and receiver are able to disclose it. Steganography technique can be applied on text, image, video or audio files. Steganography is written in character including hash marking, but its usage within images is also very common. Steganography means hiding an important or secret message into ordinary image file in such a way that an attacker cannot detect the presence of contents in the hidden messages. Today, there are many different techniques of embedding that enable us to hiding message in a given object. The secret message can be hidden in an image file using Steganography because in this technique all requirements must be satisfied. The methods of embedding secret message (which can be plain text, cipher text) is based on replacing bits of source cover file. The Steganography algorithm basically operates on three types of images: Jpeg image, Row image and palette based images but Jpeg images are mostly used in Steganography algorithm because it is most popular loss image compression methods. The Steganography uses of least significant bit (LSB) algorithms for hiding data into Jpeg (Joint Photographic Expert Group) images. The password is used for purpose of secret for encryption and decryption. In this paper, We can hide text file of different size into image file for authentication of login and logout the system for making more secure systems. The only authorized users can hide and disclose the message. The text files of different size are used to test the system and found that the system satisfies all requirements of Steganography and the system is more secured.
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