A Steganography Approach to Protect Secret Information in Computer Network

Everyone use computer networks to share resource and to exchange information. Protection of data is a demanding issue in todays era. The prevalent part of the data or information pass throughout the internet and it becomes difficult to make data secure. There arise a need of data hiding. Steganography is different as the study of hidden communication. Steganography is the skill and science of hiding a pinnacle secret communication in a cover media such as image, text, signals or sound in such a approach that nobody, with the exception of the intentional beneficiary knows the existence of the data. This paper express the thought to protect secret information in computer network by means of exploring initially what is the steganography, cryptography and DWT and the necessities associated to steganography. In this paper, we implemented the security and data hiding technique that are used to implement a steganography.