摘要
由于目前基于匿名水印协议版权管理的共谋容限性较弱,或者保证共谋容限性的协议较复杂,文中提出了一种新的匿名水印协议,并对新协议的性能进行了分析。新协议的创新点在于,匿名水印由销售者生成,且经可信方CA对其部分进行置乱处理后方可作为有效水印。此协议保证了较强的共谋容限性,同时,在不传输原始作品的前提下,匿名水印仍然能由含边信息的水印系统生成。
For weaker collusion tolerance of the anonymous Buyer-Seller watermarking protocol, or fairly great complexity of the protocol for assuring it, the paper proposes a new anonymous watermarking protocol and gives an evaluation. As an invention in new protocol, anonymous watermarking is generated by seller and programmed partially with a random permutation function by believable CA. It improves the collusion tolerance and assures that watermarking could be generated by using, and without transferring, the original content.
出处
《信息安全与通信保密》
2010年第1期116-118,共3页
Information Security and Communications Privacy
关键词
匿名水印
版权管理
共谋容限性
anonymous watermarking
digital copyright management
collusion tolerance
