Steganography

Steganography, or data hiding is the technique of embedding a message (pay¬load) in a medium (carrier), without causing suspicion about the existence of hidden data in the medium. The perturbations to the medium are carried out in such a manner that there is no perceivable noise component introduced. One way to illustrate the concept of steganography would be to analyze the Sim¬mons’ Prisoners’ problem. Two prisoners are allowed to communicate through a medium via an agent trusted by the warden. The prisoners’ are discouraged from discussing any plans of an escape from the prison. The warden himself, though, has a vested interest in letting them communicate as he wants to catch them in the act of Hatching an escape plan or by foiling their plans by modifying the message itself.…

Steganography is where a plaintext message may be hidden in one of two ways. There are two primary Steganography methods to conceal the existence of the message, plain sight and encoded (Stallings, 2014). A simple but time consuming to build form of Steganography is the arrangement of words or letters within a normally written text that, once rearranged, spells out the real message (Stallings, 2014). Other techniques used in steganography include marking characters, where carefully selected…

As to other advanced pictures, the most well-known strategies for steganography are slightest significant bit insertion, concealing and filtering, and calculations and changes. (Johnson and Jajodia, "Investigating Steganography: Seeing the Unseen," 27). There are numerous present employments of steganography, in the field of gadgets as well as in different regions. Steganography is utilized when there is the danger that the message would be controlled. Individuals additionally utilize…

Cryptography scrambles a message to conceal its contents; steganography conceals the existence of a message. Computer security is the collection of tools designed to protect data and to prevent hackers [4]. Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information and transmit it across insecure networks (like the Internet) so that it cannot be read by anyone except the intended recipient. While cryptography is the…

destination without any modifications like cryptography and steganography. The project report is focused on image steganography, also the various security problems; overall overview of cryptography, steganography and digital watermarking approaches. Furthermore, the project includes in-depth debate of various steganography algorithms such as Least…

consent. Well, it is true. Our laws and ways of keeping Healthcare patients and other Health related information hidden and safe in respect of that person's Privacy is old and needs to be safer and more Efficient. In Ademola Adesina’s article "Ensuring the Security and Privacy of Information in Mobile Health-Care Communication Systems." She mentions that there were many problems with privacy and keeping patients personal information They show that they have many ways to implement data security…

Our recommendation to the National Security Council is to pursue Policy #4, using a honeynet to trap attackers and provide attribution. This technical solution is far more covert than our other alternative policies. It allows us to obtain knowledge about hackers’ methods and means of attack during their attempts to infiltrating sensitive data. Most importantly, it could potentially provide irrefutable evidence for attribution. This evidence enables the US to impose harsher sanctions without fear…

Cryptography is the study and practice of secret writing and communication. It could also be said to be art and as such provide the keys and locks of the Information Age. Secret writing developed into two different branches. One of them is steganography, derived from Greek words meaning “covered” and “to write”. Cryptography was created in parallel to this. It originates from the Greek word of kryptos meaning “hidden”. Whereas in steganography the purpose is to hide a message, so that it cannot…

have a goal of protecting all three facets. According to Shon Harris, the confidentiality portion of security is defined as preventing unauthorized disclosure of sensitive information, integrity is preventing unauthorized modification of systems and data, and availability is preventing the disruption of service and productivity, ensuring that the data is not lost or stolen, remains intact and not tampered with, and is always available (2002). In an effort to promote these best practices, the…

watermarking method since the visual quality of the watermarked images are high as it achieves high PSNR values. Furthermore, it is a blind scheme because the original image is not needed to extract the secret information. This eliminates the need for storing the patient's information in plain text as we can reduce the storage space by embedding the patient's information onto the image. The fragile watermark is used to identify tampering issues such as image compression, noise insertion, and…