Multimedia data security is becoming an important concern due to the fact that multimedia applications affect many aspects of our life. To deal with the increasing use of multimedia in industrial process, security technologies are being developed. Multimedia encryption algorithms implemented in hardware have emerged as the most viable solution for improving the performance of Multimedia encrypt...

We propose a multimedia content protection framework that is based on biometric data of the users and a layered encryption/decryption scheme. Password-only encryption schemes are vulnerable to illegal key exchange problems. By using biometric data along with hardware identifiers as keys, it is possible to alleviate fraudulent usage of protected content. A combination of symmetric and asymmetric...

Data integrity and source origin authentication are essential topics for real-time multimedia systems. But the traditional methods are not very applicable to overcome the distortion introduced in multimedia data transportation. In this thesis some security mechanics are proposed, which rely on authentication rather than on encryption methods. The highly asymmetric architectures found in ubiquit...

Watermarking is one of the best solutions for copyright protection and authentication of multimedia contents. In this paper a hybrid scheme is proposed using wavelet and shearlet transforms with singular value decomposition. For better security, Arnold map is used for encryption. Examining the results and comparing with other methods show that this hybrid proposed scheme with simultaneous utili...

Rapid advances in embedded systems and mobile communications have flooded the market with a large volume of multimedia data. In this chapter, the authors present a summary of multimedia compression and encryption schemes, the way they have evolved over the decades. They first discuss the traditional approach to data encryption and their extension to video encryption. Next, they present the next...

The demand for online multimedia services is ever increasing. There is a need for bandwidth reduction (compression), while at the same time for increased security. Traditional cryptographic algorithms/systems for data security are often not fast enough to process the vast amounts of data generated by the multimedia applications to meet the real-time constraints. Selective encryption is a scheme...

With a ever increasing growth of multimedia applications, security is an important issue in communication and storage of images, and encryption is one of the way to ensure security. Image encryption has applications in internet communication, multimedia systems, medical imaging, telemedicine and military communications. This paper proposes image encryption using secret sharing scheme. According...

The popularity of digital video storage and delivery systems has given rise to the need for video encryption to preserve secrecy and digital rights. Conventional encryption techniques are not appropriate for securing multimedia systems given the need to encrypt a large amount of data in real-time. This paper presents a selective video encryption algorithm that utilizes multiple stream ciphers a...

In recent years, many multimedia and image encryption techniques based on chaotic maps have been proposed. In this paper, we propose a novel multimedia data encryption technique called MDEA (Multimedia Data Encryption Algorithm). Proposed encryption scheme is based on two digital chaotic maps, which in turn are used to generate two different chaotic sequences. Detail description of the proposed...

With the fast advancement of computer, multimedia and network technologies, the amount of multimedia information that is conveyed, broadcast or browsed via digital devices has grown exponentially. Simultaneously, digital forgery and unauthorized use have reached a significant level that makes multimedia authentication and security very challenging and demanding. The ability to detect changes in...