Investigate the Capability of Applying Hidden Data in Text File: An Overview

The aim of this study is to investigate the methods of steganography using the text file as a cover carrier. The hiding data or Steganography is the art of protecting the information by embedding data in medium carrier, for instants this study illustrates historically this art. The steganography technique has been used mainly to hide secret data within multimedia files and one of used files to hide secret data is the text files. In this study, we have proposed the steganography methods using the text files as a review. The study restricts the weak points of this art by hiding information in text file. As a result of this study, the text based steganography has been discussed and the advantages and disadvantages of using the text file as a cover carrier for steganography has been proposed. © 2010 Asian Network for Scientific Information

An overview: Theoretical and mathematical perspectives for advance Encryption standard/Rijndael

With the quick development of various multimedia technologies, more and more multimedia data are generated and transmitted in the medical, also the internet allows for wide distribution of digital media data. It becomes much easier to edit, modify and duplicate digital information. Besides that, digital documents are also easy to copy and distribute, therefore it will be faced by many threats. It is a big security and privacy issue, it become necessary to find appropriate protection because of the significance, accuracy and sensitivity of the information, which may include some sensitive information which should not be accessed by or can only be partially exposed to the general users. Therefore, security and privacy has become an important. Another problem with digital document and video is that undetectable modifications can be made with very simple and widely available equipment, which put the digital material for evidential purposes under question. Cryptography considers one of the techniques which used to protect the important information. In this study a theoretical and mathematical perspectives for Advance Encryption Standard (AES)/Rijndael of multimedia encryption schemes have been proposed in the literature and description. This overview for advance encryption standard achieving a flexibility and uncomplicated handle with this algorithm, which is a challenge of researchers when be used as implementation. © 2010 Asian Network for Scientific Information