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Research on Digital Watermarking Protocol

Author: ChenZheng
Tutor: ZhouZuDe
School: Wuhan University of Technology
Course: Communication and Information System
Keywords: Digital watermarking Digital fingerprint Digital signature Anonymous mechanisms Digital watermarking protocol
CLC: TP309
Type: Master's thesis
Year: 2006
Downloads: 174
Quote: 4
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Abstract


With the rapid development of computer network technology, digital products are gradually replacing traditional media services, but digital products easy to modify, easy to copy features make copyright disputes abound. Therefore, the security of digital watermarking protocol copyright of digital products has become a challenging research area one of the important issues, it makes people with technical means to achieve digital products copyright protection and piracy traceback as possible. In recent years, many scholars have proposed a series of new digital watermarking protocol. Author through in-depth research and analysis, and in accordance with existing agreements the existence of defects and deficiencies, proposed transaction environments used in many digital watermarking protocol: a trade digital watermarking protocol, secondary trading transactions watermarking digital watermarking protocol and multi- protocol solves the existing digital watermarking protocol some of the key issues. The main research work and achievements are as follows: (a) the existing protocols may suffer several attacks carried out in-depth analysis; improved watermarking protocol is the basic design requirements, and third parties involved in digital watermarking protocol the extent and role of specific provisions, which for the next digital watermarking protocol is designed to work laid the foundation. (2) proposed a new interactive buyer - seller watermarking protocol, through the introduction of new watermark embedding and encryption schemes, effectively blocking the Purchaser and the third party vendor and third-party collusion attacks, as well as middle attack. (3) proposes a new secondary trading of digital watermarking protocol, which can effectively overcome Cheung et al, the proposed agreement can not trace the original buyer's problem, but the seller need only provide the initial transfer of certificates and decryption services, they can achieve secondary trading, and to ensure security of the protocol. (4) proposed a multi-party transactions applied to digital watermarking protocol, which effectively overcome the multicast mechanism requires a copy of the agreement in conformity with the digital watermark watermark unique combination of contradictions that existed, the seller can achieve multiple buyers a way to transmit a multicast transaction information and digital products, and embedding in third party for the buyer to work cases, third parties can effectively prevent the buyer and the seller and third-party collusion attacks, as well as middle attack.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality
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