Identifying The Original Image Data For Secrecy

Discuss whether steganography is a good solution for image and movie piracy. Discuss how steganography can relate to digital rights management (DRM) solutions. (SLO 22)

This critical review is to investigate steganographic studies and their methods to either exfiltrate data or defend against data exfiltration. Steganography has one main purpose, to conceal data. Huang’s (2011) method, embedding steganographic data in inactive frames of low-bit rate audio streams went against the norm (Aoki, 2008), (Wu et al., 2006), used active frames of high-bit rate audio streams. Active high-bit rate audio streams have higher least significant bit counts, which presents added frames to conceal steganographic payloads (Huang et al., 2011). Howbeit, Huang (2011) demonstrated a new algorithm he administered to (VOIP) inactive frames of low-bit audio streams, which could carry higher capacity payloads than

Steganography is an ulterior, and lesser-known approach to private communication. Steganographic applications work by taking in three things: a cover work; this could be a picture, an audio file, a video file, etc., a message to be embedded, and a stego key; we don’t always use one but if we do it is much like an encryption key. Steganography applications will then embed the message into the cover work. This is most commonly performed using a method known as LSB embedding, which I will explain in detail.

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 inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. As a simple example, a sender might start with an innocuous image file and

Joining of cyberspace revolution increase the importance of steganography for people. Steganography is the practice of concealment of message from detection of hidden message. Steganography technique is using an array of secret communication method by which conceal the message from being discovered.

Steganography is an art and science, which is use to write hidden messages in such a way that no one can read/understand the existing of the messages except the receiver[1]. It is an art of secret communication.

The privacy preserving techniques also have data sanitization, cryptography techniques and access control techniques. The data sanitization techniques refer as a process, which conceals sensitive information in their data sets. Here in this method implements various techniques to offer the privacy to their dataset. The access control methods are implemented to reduce and handle the access to the host system and their applications through communication links. The cryptography techniques are implemented to offer a tough security and privacy and also offer exact and practical implementation. The cryptography protocols permits secure communications through addressing their authentication [1].

The basic concept is that it has a cover object that is used to cover the original message image, a host object that is the message or main image which is to be transmitted and the steganography algorithm to carry out the required object. The output is an image called stego-image which has the message image inside it, hidden. This stego image is then sent to the receiver where the receiver retrieves the message image by applying the de-steganography

The aim of steganalysis is to find some change in the stego file either there may be change in size of file or statistic of the file may be different or some visible changes. In this way we fails that steganography technique by particular steganalysis technique. The importance of steganalytic techniques that can reliably detect the presence of hidden information in images is increasing. Steganalysis finds its use in computer forensics, cyber warfare, tracking the criminal activities over the internet and gathering evidence for investigations particularly in case of anti-social elements . Apart from its law enforcement and anti-social significance steganalysis also has a peaceful application—improving the security of steganographic tools by evaluating and identifying their weaknesses.

The process behind Visual Cryptography allows messages to be contained in seemingly random shares. The generation of these

Cryptography is the investigation of the strategies of mystery composing, particularly code and figure frameworks, systems, methodology, forms and so on. It is a strategy for putting away and transmitting information in a specific structure. The term is regularly connected with scrambling plain content into figure content likewise called encryption, then back again called as unscrambling. It is a method utilized in securing trustworthiness of electronic messages by changing over them into figure content structure. Just the utilization of a mystery key can change over the figure content again into clear content structure. Cryptography programming and equipment gadgets use numerical calculations to change content starting with one structure then onto the next.

Information is becoming widely available via global networks. These connected networks allow cross-references between databases. The advent of multimedia is allowing different applications to mix sound, images, and video and to interact with large amounts of information (e.g., in e-business, distance education, and human-machine interface). The industry is investing to deliver audio, image and video data in electronic form to customers, and broadcast television companies, major corporations and photo arc hivers are converting their content from analogue to digital form. This movement from traditional content, such as paper documents, analogue recordings, to digital media is due to several advantages of

various methods that exploits the characteristics of the Human Visual System (HVS) for more secure and effective data hiding,

Image masking is now a recognized profession. Many people specially in developing countries get employment in image standardization studios or companies. Day by day its application is growing as people tend to keep their photographs intact and retain their past memory fresh from the album pages.

exra pictures, that are blended to create a fake picture. Below suggests an example of picture splicing IF.