The wide use of video multimedia applications has made it important to improve the security of video information for streaming it over communication links. In this case cryptography techniques are necessary and the security of video information becomes essential. Existing video encryption scheme address this issue by using chaotic map or standard private key systems. In this paper, we propose a...

There are tremendous impacts of advancement in information and telecommunication technology over the use of multimedia data. Multimedia data are stored and transmitted through the wired and wireless network, where they can be easily accessed. Moreover, the advancement in the technology has also increased the threats on their security. Thus safeguarding the data from unauthorized access and prot...

This work investigates the problem of efficient multimedia data encryption. A novel methodology is proposed to achieve encryption by controlling certain operations in the data compression process using a secret key. The new encryption approach consists of two cascaded modules. The first one is called randomized entropy coding (REC) while the second one is called rotation in partitioned bitstrea...

For digital rights management of mobile multimedia in mobile terminals, an Android based Digital Rights Management (DRM) approach to implementing mobile audio and video media usage control was proposed. The solution adopts 3DES encryption and decryption algorithm for protecting multimedia contents security as a whole. The usage of control and display for protected contents were completed in mob...

Distribution of digital multimedia contents which are used for broadband communication makes it possible for users to have joint ownership of information. It means that illegal copy and forgery of digital contents is possible to individuals. Therefore, it is necessary to protect right of contents authorship using digital watermarking or digital encryption. When watermarking and encryption are c...

This paper presents a novel concept of a secure digital camera (SDC) with a built-in watermarking and encryption facility. The motivation is to facilitate real-time digital rights management (DRM) by using the SDC right at the source end of multimedia content. The emerging field of DRM systems addresses the issues related to the intellectual property rights of digital content. The use of digita...

Security support is mandatory for any communication networks. For wireless systems, security support is even more important to protect the users as well as the network. Since wireless medium is available to all, the attackers can easily access the network and the network becomes more vulnerable for the user and the network service provider. Worldwide Interoperability for Microwave Access (WiMax...

The security of multimedia data in digital distribution networks is commonly provided by encryption, i.e., the mathematical process that transforms a plaintext message into unintelligible ciphertext. Nevertheless, the classical and modern ciphers have all been developed for the simplest form of multimedia data, i.e., text, and are not appropriate for higher forms such as images and video with v...

The explosive growth of multimedia content on the Internet is revolutionizing the way of multimedia security and copyright management. Unfortunately, the two major technological solutions in the past decade, namely encryption and watermarking, are ill-equipped to deal with the change. This article introduces the third solution, i.e., Content-based Multimedia Identification (CBMI). The key idea ...

Nowadays, there is an explosive growth in the digital multimedia creation, capturing, processing and distribution. Protecting the multimedia contents from copyright infringement has become a major concern. Encryption and watermarking are two complementary techniques that are used for protecting the multimedia data. In this paper, a proposed hybrid encryption-watermarking algorithm for copyright...