Strengths Of Steganography

Steganography in the context of digital content piracy serves primarily as a method to track where digital assets are moving or who is receiving them. It can be a good solution for distribution of a small number of copies but becomes less effective when distributing on a wide basis. In order for it to be effective a content provider needs to recover the content by means of the unauthorized channel and examine the indicator marked on the copy. This is cumbersome for wide distribution but can be used on a broad basis such as by region. Region coding is used with many DVD releases for example but can also be considered a type of DRM (Andrew,

Cheddad et al. [3] have presented that Steganography is the science that involves communicating mystery information in the suitable multimedia carrier, e.G., photo, audio, and video files. It comes beneath the idea that if the function is visible, the point of assault is obvious, hence the goal here is constantly to conceal the very lifestyles of the embedded statistics. This paper provides a today's review and evaluation of the unique current strategies of Steganography along with some common standards and tips drawn from the literature. This paper concludes with some recommendations and advocates for the item-oriented embedding mechanism. The emerging strategies together with DCT, DWT and Adaptive Steganography aren't too liable to assaults, specifically while the hidden message is small. This is because they alter coefficients within the transform domain, hence photo distortion is saved to a minimum. Generally those techniques have a tendency to have a lower payload compared to spatial area algorithms. There are one-of-a-kind approaches to lessen the bits had to encode a hidden message.

Steganography (pronounced STEHG-uh-NAH-gruhf-ee, from Greek steganos, or "covered," and graphie, or "writing") is the hiding of a secret message within an ordinary message and the extraction of it at its destination. Steganography takes cryptography a step further by hiding an encrypted message so that no one suspects it exists. Ideally, anyone scanning data will fail to know it contains encrypted data (Neijts and Semilof, 2007). The need to keep sensitive information out of the hands of certain people is growing rapidly and for some organisations, it is becoming more of a necessity than ever with the growing rate of internet communications. This report presents both the general information on steganography and the importance of it. The report shows the need to be able to understand how it works, and the advantages and disadvantages of steganography for companies across the world.

Abstract—Problem confronted by today 's communicators is security as well as the pace of correspondence and size of substance. In the present paper, a plan has been proposed which utilizes the idea of pressure and information encryption. In first stage th center has been made on information pressure and cryptography. In the following stage we have underscored on pressure cryptosystem. At long last, proposed procedure has been examined which utilized the idea of information pressure and encryption. In this first information is compacted to diminish the measure of the information and expansion the information transferrate. There after compress data is encrypted to give security. Consequently our proposed system is powerful that can decrease information size, build information exchange rate and give the security amid correspondence.

For information to be private and secure, encryption is used. A piece of information can be encrypted by changing each of the characters in the data to something different. The encrypted information can then be decrypted to find out the original information. It is important for information to be encrypted so that only the person that has sent and the person receiving the information can see it. Without

Steganography is the science of hiding a secret message or data inside another text, image, audio or video file. It has been in use since ancient times. The distinguishing factors in the steganography techniques used back then and at present, is the medium to carry the secret data and the various algorithms which have been designed for it. We intend to uncover the pros and cons of these various steganography techniques, which use different mediums to carry the secret data.

Security of information becomes one of the most important factors of information technology and communication because of the huge rise of the World Wide Web and the copyrights laws. Cryptography was originated as a technique for securing the confidentiality of information. Unfortunately, it is sometimes not enough to keep the contents of a message secret, it may also be necessary to keep the existence of the message secret and the concept responsible for this is called steganography [2]. Steganography is the practice of hiding secret message within any media. Most data hiding systems take advantage of human perceptual weaknesses. Steganography is often confused with cryptography because the two are similar in the way that they both are used to protect secret information. If both the techniques: cryptography and steganography is used then the communication becomes double secured [2].The main difference between Steganography and cryptography is that, cryptography concentrates on keeping the contents of a message secret while steganography concentrates on keeping the existence of a message secret. ASCII Conversion & cyclic mathematical function based

Since the beginning of civilization, humans have needed a way to communicate in secret. Whether it be a letter to a lover or a set of orders for an army, it would be paramount for these messages to arrive unknown and untouched. However at some point, a person could easily apprehend the message; perhaps a spy or the letter bearer, nevertheless the chance of the message being compromised would be quite high. Thus one would have to change the message to appear as meaningless nonsense to those others than the intended recipient. This idea formed the basis of cryptography, the backbone of digital security.

Steganography is the act of changing the digital media in a way that only sender and the intended recipient is able to detect the message sent through it.

steganography and cryptography are distinctive sorts of strategies utilization to send secure information transmission. Steganography is the craftsmanship and art of concealing information into distinctive bearer records, for example, pictures, features, sound, content and so forth. In cryptography, there is parcel of degree to discover mystery message that we send by outsider

Video Steganography is the art of writing hidden messages inside videos, in such a way that no one apart from the sender and intended recipient realizes the existence of a hidden message. Steganography mostly uses repeating portions of the Video files to embed the secret message. There are many techniques for hiding data in Video, here we use one of those technique along with the

Biometric systems are used for recognising a user on the basis of biometric traits he have. During authentication some of the frequently asked questions are “Is he who he claims to be?”, “Is he a valid user for gaining access to the system?”. Biometric system answers all these questions by authenticating the users. Every second information is shared and transferred between people and it is important to make sure that what is sent by sender is what received by the receiver thus raising the demand of security. Steganography is one of the techniques used for securing the data. The secret message is hidden inside a cover media like audio, video or image with the help of a secret key. Biometric templates can also be secured with this technique. Instead of storing original templates in the database stego-image is stored. LSB is one of the common techniques that replace the LSB of every pixel of the cover image with the secret message to form stego-image.

If you want to keep information secret, you have two possible strategies: hide the existence of the information, or make the information unintelligible. Cryptography is the art and science of keeping information secure from unintended audiences, of encrypting it. Conversely, cryptanalysis is the art and science of breaking encoded data. The branch of mathematics encompassing both cryptography and cryptanalysis is cryptology. This method of secrecy has existed since 1900 B.C. in the form of Egyptian hieroglyphs. Up to the present two organizations have come to the front of the field; United States’ National Security Agency (NSA) and United Kingdom’s Government Communications Headquarters

Cryptography is a method of storing and transmitting data in a particular form so that only those for whom it is intended can read and process it. (Rouse, Definition: Cryptography, 2016)

Digital Watermarking technique is used to hide a small image in jpeg, jpg, bmp image of data in a digital signal in such a way