There are kinds of multimedia can be accessed conveniently in social networks. Some of multimedia may be used to hiding harmful information. We consider the problem of estimating the stego key used for hiding using least significant bit (LSB) paradigm, which has been proved much difficult than detecting the hidden message. Previous framework for stego key search was provided by the theory of hy...

Covert network timing channels control time between transmissions of packets in overt network communication and transmits hidden messages. This paper presents an overview of different concepts of covert timing channels such as types, features and properties. There is range of terms used for security of information such as encryption, covert channels, network steganography or information hiding ...

| Introduction | Null Ciphers | Digital Image and Audio | Digital Carrier Methods Steganography Examples | Detecting Steganography | Steganography Detection Tools | Summary and Conclusions References | Additional Websites | Companion Downloads | Commercial Vendors | Author's Bio

As cryptography is the standard way of ensuring privacy, integrity and confidentiality of a public channel, steganography steps in to provide even stronger assumptions. Thus, in the case of cryptology, an attacker cannot obtain information about the payload while inspecting its encrypted content. In the case of steganography, one cannot prove the existence of the covert communication itself. Th...

Confidentiality, one of the primary goals of information security, is most frequently achieved utilizing cryptography. There exist other methods to conceal information from unauthorized or undesired viewers. One category of noncryptographic concealment techniques, called covert channels, can hide information locally on a system or mask traffic as it passes over a network. This report will explo...

Steganography is hiding the secret data into a cover object to protect it from unauthorized access. It is a technique of invisible communication which hides the existence of the message. If the cover object used is an image, the steganography is known as image steganography. It has many applications like Online transactions, military communication etc. In this paper we are discussing Existing i...

This paper describes and discusses the process of secret communication known as steganography. The argument advanced here is that terrorists are unlikely to be employing digital steganography to facilitate secret intra-group communication as has been claimed. This is because terrorist use of digital steganography is both technically and operationally implausible. The position adopted in this pa...

Data hiding techniques have an important role with the rapid growth of intensive transfer of multimedia content and private communications. Steganography is the art of hiding information in different ways that prevent detection by unintended user. The Steganography used to transfer data and information from one source to other source through public channel in hidden way. Steganography hides the...

Despite the fact that many IoT devices are publicly accessible to everyone on network, understanding security risks and threats posed by cyber attacks is critical; as a result, it should be safeguarded. Plain text constructed into encrypted text, before being delivered using cryptography, then reconstructed back plain after receiving response from recipient. The steganography technique can used...