Public Watermark Detection Using Secure Multiparty Computation

Wang, Hong; Wei, Shimin

doi:10.1109/ncis.2011.177

Cited by 1 publication

(1 citation statement)

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“…The authors of [20] investigate the use of SMC in digital watermarking schemes. The authors of [20] also propose a public watermark detection protocol based on verifiable secret sharing. These studies do not evaluate their performance in terms of the computation and communication overhead.…”

Section: Related Workmentioning

confidence: 99%

Secure and traceable online image sharing

Sugiyama

Fukushima

Tagami

et al. 2012

2012 IEEE Global Communications Conference (GLOBECOM)

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We propose a scheme for application service providers that will allow them to provide a secure and traceable online image sharing service. To this end, a service provider needs to achieve security against unauthorized read access and traceability in the event of unauthorized write access. Digital watermarking is a promising approach for achieving traceability. However, if an image is encrypted using a cryptographic key shared between authorized users for security, it is difficult for the service provider to flexibly embed a digital watermark into the encrypted image. To overcome this encryption limitation, we propose a novel solution based on the secure multiparty computation (SMC) protocol and secret sharing scheme (SSS). Our goal is to design functions that prevent unauthorized read access, and allow the image copy path to be traced back to the user who performs unauthorized write access. The preliminary analysis of the security for our solution shows that it is significantly more secure than the straightforward operation, especially when images are shared among many users. We also implement our solution and evaluate its experimental performance. Consequently, we show that the latency overhead of our solution is reasonably small (i.e., sub-100 milliseconds) in practice.

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Section: Related Workmentioning

confidence: 99%