Review Paper on Digital Steganography in Android Application

Abstract

The need of maintaining the secrecy and safety of the data is much more important than the data itself. Digital steganography is the modern weapon that ensures the security of multimedia files . This method comprises of both the cryptography and data hiding technique . Here in this paper a wide comparison of modern algorithms(DCT,LSB,BIT SLICING)that are used in steganography are discussed considering their past,present,future aspects. This paper identifies the basic to modern factors that are required to be encountered in today’s scenario. Keywords— Steganography ,Covered Encryption , LSB,DCT INTRODUCTION The reason why steganography application is reviewed for android is because as on date android is the most popular Operating system. Smart gadgets are so common these days and are used by every person who uses technology in day today life. Also the data needs to be secured more where it is stored in large.On standard scale approximately 85% of the digital data on and off network is accessed through mobile phones,tablets and e-books that runs on the android applications. Digital steganography technique aims to provide a unrevealed classified communication..This type of technique is also known as data hiding or cover writing.It is till date the utmost method used for maintaining the secrecy of private digital communication[5]. In this the secret file is Encrypted and Implanted in the cover file .The existence of secret file is only revealed to the intended receiver,while other unintended receiver remains unaware of its existence.The encryption of secret file with the secret key is also given as an option to sender for double secrecy. In steganography ,first the secret file that is to be communicated is chosen then suitable cover file is selected(depending upon file size)then it is encrypted with the private key (in case it is required) and compression of the file is also required in most of the cases thus is given in option, simultaneous to encryption[5]. OBJECTIVE This paper rolls out the reviews for the results of the efforts made to analyse and compare the various algorithms and techniques used for steganography in android application. It also attempts to discuss its present problem domain ,possible solution and its future propects .