Web real time communication (WebRTC) is an important part of modern convergence networks. Interactive voice communication, video conferencing, chat messaging are today very popular and widely used Internet Protocol (IP) network services and applications. The Session Initiation Protocol (SIP) is a crucial communication technology that brought new and standardized control mechanism. The reviewed ...

The multimedia content protection has become a boon for an IT industry nowadays. This scheme is based on layered encryption/decryption involving biometric authentication. Utilization of fingerprints as keys in encryption/decryption procedures eliminates the feasibility of illegal key sharing, which hampers the content protection schemes based solely on traditional keys. The computation times re...

We are taught from a young age that plagiarism (copying other's work) is wrong. However, the problem of Illegal copies of multimedia data is exacerbated by the widespread availability of circumvention devices, which enable people to make infringing copies of multimedia data. Recently, Joint Video Compression and Encryption (JVCE) has gained increased attention to reduce the computational comple...

Conventional encryption techniques are usually applicable for text data and often unsuited for encrypting multimedia objects for two reasons. Firstly, the huge sizes associated with multimedia objects make conventional encryption computationally costly. Secondly, multimedia objects come with massive redundancies which are useful in avoiding encryption of the objects in their entirety. Hence a c...

In this paper we first propose an encryption scheme for encryption of MPEG video data using PKI, second, we propose a shared key pool and encryption/decryption of multimedia data. Third, to reduce huge play-out delay time which occurs when performing decryption on large capacity multimedia data, a double buffer configuration is adopted and a real-time decryption scheme using efficient buffer sc...

Multimedia data security is very important for multimedia commerce on the Internet such as videoon-demand and real-time video multicast. Traditional cryptographic algorithms/systems for data security are often not fast enough to process the vast amount of data generated by the multimedia applications to meet the real-time constraints. This paper presents a joint encryption and compression frame...

Multimedia data security is important for multimedia commerce. Previous cryptography studies have focused on text data. The encryption algorithms developed to secure text data may not be suitable to multimedia applications because of large data sizes and real time constraint. For multimedia applications, light weight encryption algorithms are attractive. In this paper, we present four fast MPEG...

Cryptography is about communication in the presence of an adversary. It encompasses many problems like encryption, authentication, and key distribution to name a few. The field of modern cryptography provides a theoretical foundation based on which one can understand what exactly these problems are, how to evaluate protocols that purport to solve them and how to build protocols in whose securit...