Summary
Conventional cryptosystems are powerful but limited in terms of bulky and highly redundant multimedia data. Selective encryption and chaos-based encryption are often used to provide faster and better multimedia security. Various multimedia applications demand different encryption approaches. Consequently, choosing the appropriate security level is often not an easy task. Multimedia specific encryption algorithms are relatively new and the tools for their security assessment are not fully developed. Scrambling refers to a lightweight analog signal distortion, while degradation refers to a lightweight encryption of digital data where the encrypted signal is usually still perceptible. Format-compliance, error-tolerance and constant bitrate are important features of the multimedia encryption algorithms.
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© 2005 Springer Science+Business Media, Inc.
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(2005). Introduction to Multimedia Encryption. In: Multimedia Encryption and Watermarking. Multimedia Systems and Applications, vol 28. Springer, Boston, MA. https://doi.org/10.1007/0-387-26090-0_2
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DOI: https://doi.org/10.1007/0-387-26090-0_2
Publisher Name: Springer, Boston, MA
Print ISBN: 978-0-387-24425-9
Online ISBN: 978-0-387-26090-7
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