Public Watermark Detection Using Multiple Proxies and Secret Sharing

Chang, Ee-Chien

doi:10.1007/978-3-540-24624-4_45

Cited by 4 publications

(5 citation statements)

References 12 publications

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“…SECURITY ANALYSIS Following the discussion in ref. [7], the security considerations of the system consists of two categories: (a) maintaining the secrecy of W, and (b) protecting the interest of the verifier.…”

Section: B Detectionmentioning

confidence: 99%

“…Although these schemes are cryptographically secure, a main drawback is the large number of rounds and bandwidth required in the communications, and they are not easy to implement in practice. In ref [7], the authors propose a public watermarking scheme using multiple proxies and secret sharing. In their setting, they remove the expensive zero-knowledge interactive proofs without assuming the existence of a trusted third party.…”

Section: Introductionmentioning

confidence: 99%

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Public Watermark Detection Using Secure Multiparty Computation

Wang

Wei

2011

2011 International Conference on Network Computing and Information Security

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A public watermark detection scheme based on secure multiparty computation is proposed. It removes the expensive zero-knowledge interactive proofs and replaces the traditional trusted third party with a group of proxies. Then, the proposed scheme is robust against "single point failure", and efficient in terms of computation cost, the number of rounds and bandwidth required in the communications. Because of using integer comparison technique, the scheme achieves the provable security against sensitivity attacks without leaking any information about the secret watermark.

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Section: B Detectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Public Watermark Detection Using Secure Multiparty Computation

Wang

Wei

2011

2011 International Conference on Network Computing and Information Security

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“…Following the discussion in ref. [8], the security considerations of the system consists of two categories: (a) maintaining the secrecy of W, and (b) protecting the interest of the verifier.…”

Section: Security Analysismentioning

confidence: 99%

“…Although these schemes are cryptographically secure, a main drawback is the large number of rounds and bandwidth required in the communications, and they are not easy to implement in practice. In ref [8], the authors propose a public watermarking scheme using multiple proxies and secret sharing. In their setting, they remove the expensive zero-knowledge interactive proofs without assuming the existence of a trusted third party.…”

Section: Introductionmentioning

confidence: 99%

Public Watermark Detection Resistant to Sensitivity Attacks

Wang

Shi

2011

KEM

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“…Unfortunately, known methods are not satisfactory and there are a number of successful attacks [12]. An alternative is to replace the TTP with a group of proxies [16] and employ a secret sharing scheme, where the security is achieved if the majority of the parties are honest. The scheme also allows the owner to delegate watermark detection to third-parties without revealing her secret watermark.…”

Section: Related Workmentioning

confidence: 99%

Zero-knowledge watermark detection resistant to ambiguity attacks

Chang

2006

Proceedings of the 8th Workshop on Multimedia and Security

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A zero-knowledge watermark detector allows an owner to prove to a verifier that an image in question indeed contains the owner's watermark without revealing much information about the actual watermark. In such a scenario, the owner publishes a committed watermark before watermark detection so as to show that she knows the watermark before the detection. However, this does not imply that the owner can prove that she knows the watermark before the work appeared in the public. One well known counter example is the invertibility/ambiguity attacks where an adversary can create an ambiguous situation by deriving a forged watermark from a published work, and commits the forged watermark. Furthermore, the adversary may derive a watermark from existing non-watermarked images in the public domain and later claim ownership of them. One solution is to enforce certain constraints on the valid watermarks. In this paper we propose a zero-knowledge watermark detector that prevents the owner from cheating by ambiguity attacks. In addition, it allows the owner to publish a large number of works with different watermarks, while committing only one secret.

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Public Watermark Detection Using Multiple Proxies and Secret Sharing

Cited by 4 publications

References 12 publications

Public Watermark Detection Using Secure Multiparty Computation

Public Watermark Detection Using Secure Multiparty Computation

Public Watermark Detection Resistant to Sensitivity Attacks

Zero-knowledge watermark detection resistant to ambiguity attacks

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