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Future Internet 2015, 7(4), 393-404;

Embedding an Identity-Based Short Signature as a Digital Watermark

Department of Molecular Medicine and Medical Biotechnologies, Federico II University, Naples 80138, Italy
Department of Science and Technology, University of Naples Parthenope, Naples 80133, Italy
Author to whom correspondence should be addressed.
Academic Editor: Wolf-Tilo Balke
Received: 3 August 2015 / Revised: 27 September 2015 / Accepted: 16 October 2015 / Published: 23 October 2015
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Digital watermarking aims at protecting multimedia content by hiding into it some data that can be used for such purposes as, for example, intellectual property protection or integrity control. Sometimes, the owner of an image would prefer to not transmit, publish, or hand to a cloud service the original image, but rather an encrypted version of it. Encrypted images allow for less embedding room with respect to their unencrypted counterparts, as there is less spatial correlation to leverage upon. An architecture for embedding as payload the digital signature of an encrypted image, by means of a reversible watermarking technique, is presented in this work. A noteworthy point is the use of an identity-based cryptosystem to avoid certificate management and improve performance. In addition, the use of IBS-1, a recently proposed signature scheme, allows for a reduction in the size of the signature. View Full-Text
Keywords: digital watermarking; identity-based cryptography; data hiding digital watermarking; identity-based cryptography; data hiding

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Fiore, U.; Rossi, F. Embedding an Identity-Based Short Signature as a Digital Watermark. Future Internet 2015, 7, 393-404.

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