Traditional cryptography systems treat every portion of a message (a video, an image, or an audio) equally and encrypt the entire message as a whole. As a result, those security systems often have only two states: access authorization and access denial. To facilitate multi-level access control with interoperability, scalable security mechanism is needed. Further, the availability of varying net...

In this paper, we propose a new framework for joint encryption encoding scheme based on polar codes, namely efficient and secure joint secret key encryption channel coding scheme. The issue of using new coding structure, i.e. polar codes in Rao-Nam (RN) like schemes is addressed. Cryptanalysis methods show that the proposed scheme has an acceptable level of security with a relatively smaller ke...

Securing multimedia data on disk drives is a major concern because of their rapidly increasing volumes over time, as well the prevalence security and privacy problems. Existing cryptographic schemes have high computational costs slow response speeds. They also suffer from limited flexibility usability user side, owing to continuous routine interactions. Dynamic encryption file systems can mitig...

Many of today's multimedia applications require con dential video transmission over the Internet. Appropriate encryption methods require a high computational complexity and are likely to become a performance bottleneck within software-only applications. To reduce the computational encryption e ort, partial video encryption methods have been proposed in the past. Promising approaches are based o...

Encryption and watermarking are two primary and complementary technologies for protecting multimedia content. In this paper, we present a hybrid image protection scheme to establish a robust content-based authentication by using novel cryptosystem based on matrix transformation for generation of encryption key and copyright protection by using SVD based watermarking system. This paper suggests ...

The rapid growth of multimedia communication systems has expanded the High-Efficiency Video Coding (HEVC) security applications precipitously. Therefore, there is an urgent, elevated need to protect and secure HEVC content during streaming over insecure channels ensure privacy data against intruders attackers. This paper introduces optical cipher algorithm based on bit-plane 3D-JST (Three-Dimen...