Steganography

1 Steganography and its introduction Steganography comes from the Greek word “Steganographia” (στεγανό-ς, γραφ-ειν) which means “covered writing”. It is the art and science of concealing a secret information within a cover media preventing unauthorized people to know that something is hidden in it, so that the message can only be detected by its intended recipient. Cryptography and Steganography are ways of secure data transfer over the Internet 1.1.1 Cryptography and Steganography Cryptography

Chapter 1 INTRODUCTION In this chapter we introduce why we have taken Steganography as our research area, we have also described the properties of Steganography approach, types, applications of the research topic on which we work, short overview of the study is given below. 1.1 Preface The basic need of every growing area in today’s world is communication. Everyone wants to keep the inside information of work to be secret and safe. We use many insecure pathways in our daily life for transferring

Abstract:- Steganography is art of hiding the secret message within an ordinary message and extraction of its destination. Steganography take cryptography a step farther by hiding an encrypted message so that no one finds the existence of the message. If anyone scans your data will fail to know that it contain encrypted data. Steganography maintain the secure communication between the communicating parties. There are different techniques that are used for hiding the secret data as Steganography, Cryptography

Abstract- Steganography means secret communication. It can also be defined as the study of invisible communication that is used to hide the existence of the communicated data in such a way that it remains confidential. In steganography, secret data can be communicated in an appropriate multimedia carrier such as image, audio and video files. Steganography can be classified into two types - Adaptive steganography and Non-adaptive steganography. Each has its strengths and weaknesses. In this paper

1.1 Overview The word steganography is of Greek origin and means "concealed writing" from the Greek words steganosmeaning "covered ", and graph demeaning “writing”. Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence ofthe message.. Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding

Abstract—Steganalysis and steganography are two term used for security purpose for embedding and extracting information in media files in imperceptible way. Steganography is the art of secret communication and steganalysis is the art of detecting the hidden messages embedded in digital media using steganography. Many powerful and robust methods of steganography and steganalysis have been introduced in the literature. In this paper, we will discuss various steganalysis techniques used recently for

i. Steganography ii. Watermarking iii. Covert Channels iv. Anonymity *Figure 1: Methods of Information Hiding For the purpose of this paper, I will be focusing on Steganography, which I believe is the most efficient part of steganography. Unlike other Information hiding methods where the encryption is usually detectable, steganography takes it further by hiding the message within mediums like images, main it almost impossible to detect. The purpose of this paper is to explain Steganography, how

1. Introduction 1.1. What is steganography: Steganography is derived from the greek words stego which is known as cover and grafia which is known as writing which is combinedly known as “covered writing”. It is also defined as the art and science of communication in such a way that it hides the existence of the communication. In contrast to cryptography, steganography hides message inside other harmless message in such a way that the enemy connect detect that there is a hidden message inside the

Abstract— Steganography is a technique of hiding the secret information. Steganography hides the existence of the secret data and make the communication undetectable. Secret data can be communicated in an appropriate multimedia carrier such as image, audio or video. Image steganography is extensively used technique. In this technique secret data is embedded within the image. Steganography techniques can be categorized into two groups - adaptive and non-adaptive. Each of these have its strengths

unauthorized or illegal access of the data or tampering of data is very high. In order to provide security of data being accessed by unauthorized people, information security is required [1]. Cryptography and Steganography is too used to secure communication. According to dictionary.com: Steganography is: “Hiding a secret message within a larger one in such a way that others cannot discern the presence or contents of the hidden message” and Cryptography is “The process or skill of communicating in, or