Extensive use of computer networks is associated with the development of various effective methods that are suitable for hiding information in the contents transferred over the network. These methods are described as network steganography. Since web applications use HTTP protocol to transmit the requests to the server and send the answers to the final recipient, specifically HTTP protocol is ideal for hiding information. For example, there are several methods that can be used to transmit the additional content in the HTTP header. In this paper, we present authors’ evaluation method for network steganography using HTTP specific properties and evaluate the effectiveness of some techniques, providing experimental results.
This article gives an introduction to NoSQL movement and how it can help in creating modem application trends of Web 2.0 by its scalability and performance. To achieve the objectives of this work, three types of databases have been tested to see which of them will be the best to work with mobile devices working on Android system. All received results were presented and commented.