A Digital Rights Management System Assuring Both Buyers' and Sellers' Rights
Date Issued
2004
Date
2004
Author(s)
Shen, Chih-Hao
DOI
en-US
Abstract
Universal perfect replication and instant world-wide distribution are two most influential achievements to digital content. On the one hand, they give an extremely flexibility to content production, transportation, and consumption; on the other hand, the risks to pirate are eased. Thus, there's an eager need for reliable and trustful Digital Rights Management to give content providers a piracy-free environment.
In our work, we practically built a DRM system aims at
digital images by integrating various technologies, including cryptography and digital watermarking. Additionally, we believe the central idea of DRM is to collectively protect entire life cycle of contents, so that buyers' right cannot be invaded while protecting sellers'. Therefore, we suggest the separation of watermarking generation and embedding in order to assure both buyers' and sellers' rights, i.e. we embed digital watermarks via buyer-seller watermarking protocol. Nevertheless, it's insufficient for technical protections to challenge DRM alone. Technical protection mainly focuses on those general users, but is ineffective to professional criminals. On the other hand, legislative protections complements the shortcomings of technical protections that deter the professional criminals. Therefore, we conclude that the piracy-free environment is likely to exist only under those protections that combine both technological measures and legal provisions.
Subjects
密碼學
買者賣者浮水印嵌入協定
數位權利管理系統
數位浮水印
Digital Rights Management
digital watermarking
buyer-seller watermarking protocol
cryptography
SDGs
Type
thesis
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