Image and Video Encryption: From Digital Rights Management to Secured Personal Communication

Image and Video Encryption: From Digital Rights Management to Secured Personal Communication, 9780387234021 (0387234020), Springer, 2004

Contrasting to classical encryption‚ security may not be the most important
aim for an encryption system for images and videos. Depending on the type
of application‚ other properties (like speed or bitstream compliance after encryption)
might be equally important as well. As an example‚ the terms “soft
encryption” or “selective encryption” are sometimes used as opposed to classical
“hard” encryption schemes like full AES encryption in this context. Such
schemes do not strive for maximum security and trade off security for computational
complexity. They are designed to protect multimedia content and
fulfil the security requirements for a particular multimedia application. For example‚
real-time encryption for an entire video stream using classical ciphers
requires much computation time due to the large amounts of data involved‚ on
the other hand many multimedia applications require security on a much lower
level (e.g. TV broadcasting) or should protect their data just for a short period
of time (e.g. news broadcast). Therefore‚ the search for fast encryption procedures
specifically tailored to the target environment is mandatory for multimedia
security applications. The fields of interest to deploy such solutions span
from digital rights management (DRM) schemes to secured personal communication.

Being the first monograph exclusively devoted to image and video encryption
systems‚ this book provides a unified overview of techniques for the encryption
of visual data‚ ranging from commercial applications in the entertainment
industry (like DVD or Pay-TV DVB) to more research oriented topics
and recently published material. To serve this purpose‚ we discuss and evaluate
different techniques from a unified viewpoint‚ we provide an extensive
bibliography of material related to these topics‚ and we experimentally compare
different systems proposed in the literature and in commercial systems.
Several techniques described in this book can be tested online‚ please refer to
http://www.ganesh.org/book/.

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