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In this paper, we propose a new digital watermarking algorithm of color image. We process the watermark to generate two shares based on visual cryptography. And one of the shares is embedded into a color image and another is protected by the copyright. The scheme is easy to implement and highly feasible. In addition, the embedding capacity of watermarks and robustness are improved to effectively.
This paper introduces a dynamic multiple digital watermarking model based on a formal characterization of time-series in terms of temporal logic. The security analysis shows that the proposed method of mapping multiple watermarks into a single one overcomes the problem of volume limitation and overlapping of multiple watermarks in a multi-digital-watermarking system.
The development of the sensor networks has enabled increasing commercial or scientific applications in which data are available as streams. And sometimes the core security requirement of streaming data in WSNs is integrity rather than confidentiality. Former stream authentication schemes based on watermarking usually suffer from the vulnerability of grouping. This paper proposed a novel integrity...
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