Does It Need Trusted Third Party Design of Buyer-Seller Watermarking Protocol without Trusted Third Party 1st edition by Jae Gwi Choi, Kouichi Sakurai, Ji Hwan Park ISBN 3540202080 9783540202080
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Authors:Jae-Gwi Choi, Kouichi Sakurai; Ji-Hwan Park , Tags:Applied Cryptography and Network Security , Author sort:Jae-Gwi Choi, Kouichi Sakurai & Park, Ji-Hwan , Languages:Languages:eng , Published:Published:Aug 2003
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Product details:
ISBN 10: 3540202080
ISBN 13: 978-3540202080
Author: Jae-Gwi Choi, Kouichi Sakurai, Ji-Hwan Park
Buyer-seller watermarking protocol is a combination of traditional watermarking and fingerprinting techniques. For example, in applications where multimedia content is electronically distributed over a network, the content owner can embed a distinct watermark (a fingerprint), in each copy of the data that is distributed. If unauthorized copies of the data are found, then the origin of the copy can be determined by retrieving the unique watermark corresponding to each buyer. Recently, Ju and Kim proposed an anonymous buyer-seller watermarking protocol, where a buyer can purchase contents anonymously, but the anonymity can be controlled. They used two trusted parties: the watermark certification authority and the judge. The significance of this protocol is that it offered anonymity to watermarking protocol. But this protocol has the problem that honest buyers can be found as guilty, because sellers can recreate the same contents as the buyer’s one if he/she colludes with the watermark certification authority and the judge. Thus this scheme must assume existence of the trusted third parties for its security. In this paper, we show shortcomings of this protocol and suggest a buyer-seller watermarking protocol that provides security of buyers and sellers without trusted third party.
Does It Need Trusted Third Party? Design of Buyer-Seller Watermarking Protocol without Trusted Third Party 1st Table of contents:
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Introduction
- 1.1 Motivation for Watermarking Protocols
- 1.2 The Role of Trusted Third Parties in Traditional Protocols
- 1.3 Problem Statement: Eliminating the Need for a Trusted Third Party
- 1.4 Objectives of the Paper
- 1.5 Structure of the Paper
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Background and Related Work
- 2.1 Overview of Digital Watermarking Techniques
- 2.2 Trusted Third Parties in Watermarking Protocols
- 2.3 Existing Buyer-Seller Watermarking Protocols
- 2.4 Limitations of Current Protocols Involving Trusted Third Parties
- 2.5 Approaches to Eliminating Trusted Third Parties
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Preliminaries
- 3.1 Digital Watermarking Concepts
- 3.2 Security Requirements for Watermarking Protocols
- 3.3 Trust Models in Digital Transactions
- 3.4 General Framework of Buyer-Seller Protocols
- 3.5 Challenges in Buyer-Seller Interactions Without a Trusted Third Party
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Proposed Buyer-Seller Watermarking Protocol
- 4.1 Overview of the Proposed Protocol
- 4.2 Key Design Considerations (Privacy, Integrity, Non-repudiation)
- 4.3 Watermarking Strategy: Embedding and Extraction Process
- 4.4 Communication Model Between Buyer and Seller
- 4.5 Authentication and Verification Mechanisms
- 4.6 Protocol Steps and Workflow
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Security Analysis
- 5.1 Security Goals of the Protocol
- 5.2 Protection Against Common Attacks (Forgery, Tampering, Collusion)
- 5.3 Non-repudiation and Accountability in the Absence of a TTP
- 5.4 Analysis of Watermark Robustness and Security
- 5.5 Cryptographic Techniques Used to Enhance Security
- 5.6 Trust Establishment and Reputation Management
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Performance Evaluation
- 6.1 Experimental Setup and Test Cases
- 6.2 Computational Complexity of the Protocol
- 6.3 Efficiency in Real-World Scenarios
- 6.4 Scalability of the Proposed Protocol
- 6.5 Comparison with Existing Buyer-Seller Watermarking Protocols
- 6.6 Evaluation Metrics: Accuracy, Robustness, and Latency
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Challenges and Limitations
- 7.1 Handling Disputes Between Buyer and Seller Without a TTP
- 7.2 Addressing Potential Weaknesses in Watermarking
- 7.3 Managing the Risk of Collusion Between Malicious Entities
- 7.4 Limitations in Scalability and Adaptability to Different Environments
- 7.5 Ensuring Robustness Against Future Technological Advancements
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Applications and Use Cases
- 8.1 E-commerce and Digital Media Transactions
- 8.2 Intellectual Property Protection in Digital Goods
- 8.3 Digital Rights Management (DRM) and Anti-Piracy Measures
- 8.4 Use in Cloud Storage and Online Content Distribution
- 8.5 Potential for Use in Legal and Forensic Applications
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Future Work
- 9.1 Enhancing the Protocol for Dynamic and Mobile Environments
- 9.2 Incorporating Machine Learning for Adaptive Watermarking
- 9.3 Potential for Hybrid Models Involving Trust Models
- 9.4 Investigating the Use of Blockchain for Dispute Resolution
- 9.5 Extending the Protocol to Other Transaction Models
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Conclusion
- 10.1 Summary of Contributions
- 10.2 Impact of Removing the Trusted Third Party
- 10.3 Final Remarks on the Protocol’s Effectiveness and Future Research
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