Media encryption technologies actively play the first line of defense in securing the access of multimedia data. Traditional cryptographic encryption can achieve provable security but is unfortunately sensitive to a single bit error, which will cause an unreliable packet to be dropped to create packet loss. In order to achieve robust media encryption, error resilience in media encryption can be...

Transmission of important data like text, images, video, etc over the internet is increases now days, hence it’s necessary to use of secure methods for multimedia data. Image encryption is most secure than other multimedia components encryption because some inherent properties, such as huge data capacity and high correlation between pixels. The older encryption techniques such as AES, DES, RTS ...

Video encryption is becoming increasingly important as multimedia applications gain more and more popularity. With a focus on the widely-used H.264 video coding standard, various encryption algorithms based on the intra prediction mode have been developed while suffering limited scrambling space and inadequate security. In this paper, the existing encryption algorithms are first analyzed with r...

In the current scenario and with the increase in development and usage of internet and wide applications of multimedia technology, people can communicate through the digital multimedia information systems with others, very conveniently over the internet. In many cases, especially when we want to transmit a secure image data over a network and we don’t want that to be browsed or processed by ill...

MMX is a new technology to accelerate multimedia applications on Pentium processors. We report an implementation of IDEA on a Pentium MMX that is 1:65 times faster than any previously known implementation on the Pentium. By parallelizing four IDEA's we reach an unprecedented 78 Mbits/s throughput per output block on a 166MHz MMX. In the light of rapidly increasing popularity of multimedia appli...

This paper presents a novel method for the protection of copyrighted multimedia content. The problem of selective encryption (SE) is being addressed along with the compression for the state of the art video codec H.264/AVC. SE is performed in the context-based adaptive binary arithmetic coding (CABAC) module of video codec. For this purpose, CABAC is converted to an encryption cipher. It has be...

Abstract— With the fast progression of data exchange in electronic way, information security is becoming more important in data storage and transmission. While storing and transmitting multimedia data are not easy and they need large storage devices and high bandwidth network systems. Compression and encryption technologies are important to the efficient solving of network bandwidth and securit...

Satellite communication systems are now designed according to an outdated Shannon information theory where all data is transmitted in meaningless bit streams. The advantages for satellite communication may include: high image compression and unbreakable encryption. So, this paper combines the compression and encryption techniques into two phases, encoding and decoding phase. The fractal compres...