为威慑非法的复制的目的;在电子商务的多媒体内容的分发,传统的 watermarking 联合的一些买主卖主 watermarking 协议;采指纹技术被建议了。然而,因为,以前的协议从信任第三方(TTP ) 有潜在的风险所有实体(包括多买主;多卖主) 在协议构造提及象连接,水位标证明权威(WCA ) 在相互作用在用作中央点一样的星拓扑学;因此,它的可获得性可能结果是可靠性的重要瓶颈;效率到整个系统。第二, WCA 关于买主使用的水位标保持全部信息以便如果,一个天真的买主能作为有罪被发现 WCA 与卖主共谋勾结。在这篇论文,我们建议一个 watermarking 协议在水位标产生的阶段用密码的技术处理这些问题。结果是一 TTP 独立;串通安全的买主卖主 watermarking 协议。
For the purpose of deterring unauthorized duplication and distribution of multimedia contents in e-commerce, some Buyer-seller watermarking protocols which combine of traditional watermarking and fingerprinting techniques have been proposed, However, previous protocols have potential risk from trust third party (TTP) because all entities (including multi-buyers and multi-sellers) mentioned in protocol construct a star tupology like connection, in which the watermark certification authority (WCA) serves as the central point in the interaction and therefore its availability probably turns out to be the vital bottleneck of reliability and efficiency to the whole system. Secondly, WCA holds entire information about watermark used hy Buyers so that an innocent Buyer can he found as guilty if WCA collude with the Seller. In this paper, we propose a watermarking protocol to address the problems using cryptographic technologies in phase of watermark generation. The resuh is a TTP-independent and collusion-secure buyer-seller watermarking protocol.