Video Steganography : A Method For Providing Improved Security

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.

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

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,

According to the Newton's Telecom Dictionary, cryptography is, "the process of concealing the contents of a message from all except those who know the key," (207). It is also defined as ". . . the science, or art, of secret writing," (Huffman 2). The word "cryptography" originated

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.

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

Core structure of steroid is consist of seventeen carbon atoms, bonded in four "fused" rings as mention before.

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.

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

Steroids are often used through injection, by using a needle to inject the drug directly into the

The covert communications system design is optimal with regard to detection avoidance, information gathering and transmission, and power requirements. Covert methodologies for installation, maintenance, and data retrieval were also devised. It was determined that a covert system can easily be set up in an residential enemy base of operations using

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 cover message.

A distinctive steganographic application includes covert communications among two parties whose reality is unidentified to a promising attacker and whose achievement depends on detection of existence of communication. Host medium which