The Use Of Steganography

Encryption technique is the translation of data into a secret code that will prevent hackers or identity thieves from being able to break or read the data that is sent across the network.

We all have things to hide. Whether it’s our passwords or something we have done in the past, we will often go to extremities just to keep these personal secrets from becoming known to our friends and family. However, in our constantly developing world, it is becoming more and more difficult to keep our personal life private.

Steganography is the art of information hiding the message and prevent the detection of message. It hides data in the other file. The objective of steganography is to avoid attention towards the hidden message from the others except the recipient. In this present computer era, the mediums used to hide the messages are audio, video and image. There are two types of Image steganography. The first type is reversible steganography in which gives the result as the lossless host image when the secret data is extracted. On the other hand, the irreversible steganography results as slight destruction of host image when the secret data is extracted. The advantage of irreversible steganography is that it provides high

Security by obscurity is the process of hiding the design of a network and its implementation to ensure its weaknesses are unknown to potential

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,

This information should be protected by others for potential by some hacker threats,they can read and change the contents of the message and information and exploit this information for personal benefit[17] .

Goal of coding theory is different to data hiding method even though both methods use the error correction codes [23]. In coding theory, syndrome equation in the first stage of decoder block is used to detect and correct error which is not expected in advance at the encoder block, whereas in data hiding, syndrome is used to choose proper coefficients to insert a watermark signal and decrease distortion. In the embedding process, by choosing proper e(x), some of the host image bits are modified intentionally.

Information security is a major concept in today’s industrial and computer era, so security must be higher to protect the confidential data. Information security plays major role in computer and network security with the use of different cryptography algorithms that includes the encryption and decryption of data with the uses of the algorithm and the key. By means of text or numerical key for the encryption can be dangerous because with the several hack attacks that a key can be broken. So I have proposed a new mechanism that will replace the text key with the image pixels and can gain high security which cannot be easy to break without prior knowledge.

Data hiding is a commonly used AF technique which is defined as “the art of hiding the fact that communication is taking place, by the hiding of information in other information“(Tyagi, 2012, p.120). Data is hiding is used to essentially removing data from view so it is far less likely to be uncovered meaning that it won’t be used in the forensic investigation. The evidence will not be changed or

When a message is in its original form it is known as plaintext or cleartext and the process that involves masking the text to hide the content is known as encryption. Once a message is encrypted it is referred to as ciphertext . Cryptography or crypto for short has always served the same purpose of encrypting information for reasons of privacy, deception, or security. Cryptographic methodologies could date back to the ancient Egyptian era where standard hieroglyphs were altered to mask true meaning . It is more likely that the first introduction of crypto followed the invention of writing and evolved in line with forms of communication. The use of crypto has been seen as extremely advantageous in times of war, where communication

Protecting data through cryptography from unauthorized eyes is a high priority for organizations that store personal information. Cryptography is the process of hiding the real meaning of a message through a pre-determined code that is only known to the person encrypting and decrypting a message. Different forms of cryptography can be seen in our everyday life from the word puzzle in daily newspapers to secretaries writing in short hand. Cryptography has been around since the time of the Egyptians and has made many advances through the years.

Sometimes it is impossible or impractical to completely isolate the information then completely remove all traces of the information. In such instances, we may store the information for future use, such as to help resolve disputes between us. The same security safeguards will be in place to protect the information.

Stencils are complicated works of graffiti more similar to paintings, made simple with the use of a thick sheet of cardboard cut into a stencil. They achieve the appearance of paintings with only

Steganography (literally meaning covered writing) dates back to ancient Greece, where common practices consisted of etching messages in wooden tablets and covering them with wax, and tattooing a shaved messenger's head, letting his hair grow back, and then shaving it again when he arrived at his contact point. Steganography comes from the Greek steganos, or "covered," and graphie, or "writing". Synonymous to abstraction, the art and science of hiding information by embedding messages within other, seemingly harmless messages. Steganography takes cryptography a step farther by hiding an encrypted message so that no one suspects it exists. Ideally, anyone scanning your data

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