Recent Advances in Multimedia Information System Security
A multimedia communication system enables multimedia data’s generation, storage, management, distribution, receiving, consuming, editing, sharing, and so on. In such systems, there are various security issues, which must be considered such as eavesdropping, intrusion, forgery, piracy and privacy, etc. Until now, various security solutions for multimedia communication systems have been reported, while few works have surveyed the latest research advances. This paper gives a thorough review to multimedia information system security. It introduces a general architecture of multimedia information system, and investigates some security issues in multimedia information systems. It reviews the latest security solutions such as Digital Rights Management (DRM), confidentiality protection, ownership protection, traitor tracing, secure multimedia distribution based on watermarking, forgery detection, copy detection, privacy-preserving data mining, secure user interface, intrusion detection and prevention. Moreover, the paper presents some hot research topics such as Trusted Computing, steganography, security in network or service convergence, security of content sharing in social networks, privacy-preserving data processing, multimedia forensics and intelligent surveillance in multimedia information system security. It is expected to benefit readers by providing the latest research progress, advising some research directions and giving a list of references about multimedia system security.
Nowadays, multimedia information applications such as mobile TV, on-line chatting, digital library, videoconference etc.  become more and more popular in human being’s life. Generally, a multimedia communication system enables the generation, management, communication and consuming of multimedia data such as texts, images, audios, videos, animations, etc. Multimedia communication systems can be classified into various types. For example, according to the content, they can be classified into web systems, audio systems, audio-visual systems, etc. According to the communication infrastructure, they can be classified into broadcasting systems, multicasting systems, peer-to-peer (P2P) systems, etc. According to the service mode, they can be classified into living systems, content-on-demand systems, file downloading systems, etc. Security protection is an important issue for multimedia information systems , which aims to protect the multimedia content, service interaction and user privacy, etc. For example, the content related to commercial secret needs to be protected against unauthorized users, the payment interactions between the user and the seller are sensitive to the third party, and the user profiles are private and should not be published. Until now, various techniques and tools have been proposed for multimedia information system security. Most of them focus on multimedia content security, secure interaction, and on privacy protection.