Digital Rights Management for Compressed and Encrypted Images: Introduction, Analysis and Design

Gupta, Ritu; Mishra, Anurag; Jain, Sarika

ISBN 10: 6202921587 / ISBN 13: 9786202921589

Editore: LAP LAMBERT Academic Publishing, 2020

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Codice articolo 26397293730

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Titolo: Digital Rights Management for Compressed and...

Casa editrice: LAP LAMBERT Academic Publishing

Data di pubblicazione: 2020

Legatura: Brossura

Condizione: New

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Riassunto:

Digital Right Management systems (DRMs) generally handle media data in a compressed and encrypted form. It is often necessary to watermark these media items in the compressed-encrypted domain itself for tamper detection or ownership declaration or copyright management purposes. It is a challenge to watermark these compressed encrypted streams as the compression process would have packed the information of raw media into a low number of bits and encryption would have randomized the compressed bit stream. Attempting to watermark such a randomized bit stream can cause a dramatic degradation of the media quality. Thus, it is necessary to choose an encryption scheme that is both secure and will allow watermarking in a predictable manner in the compressed encrypted domain.