A Survey of Information Hiding Techniques

To protect your secret information from the intruders it is necessary to convert information into unidentified form. So it is impossible to get your original information for intruders. So security is most challenging aspects for all users who want to share their secret information. With the wild growth of internet and the fast communication techniques in recent years the security and the confidentiality of the sensitive information has become of prime and first importance and concern. Information hiding is an art that involves communication of secret information in an appropriate carrier, e.g., image, video, audio etc. To protect information from unauthorized access various methods for information hiding like cryptography, stegnography, hashing, and authentication have been developed and are in practice today. In this paper we will be discussing one such information hiding techniques called Steganography. Steganography’s main goal is to hide the very existence of secure information so its challenge for an unauthorized party to find out secret information. Steganography is the process of cover sensitive information in any media to transfer it securely over the communication network. Our paper presents a survey on various information hiding techniques in steganography and evolution of different existing image steganography techniques of information hiding we conclude that researches and give some advantages and disadvantages of that and describe our proposed method. Keywords— Information hiding, Encryption, Decryption, Cryptography, Stegnography.