This text presents a review of current perspectives on communications and multimedia security in 2001. It examines requirements, issues, and solutions pertinent to securing information networks according to a multi-disciplinary approach covering research aspects, legal aspects, and applications. A wide spectrum of topics is discussed, including: Web security; watermarking; cryptographic algorithms; system security; mobile security; and secure key protocols. This volume contains papers presented at the fifth Joint Working Conference on Communications and Multimedia Security (CMS'01), which was sponsored by the International Federation for Information Processing (IFIP) and held on May 21-22, 2001, in Darmstadt, Germany. It should be of interest to information security specialists, computer professionals, communication systems professionals, EDP managers and auditors, and researchers in the area.
