关键词: 数字水印, 对称体制, 非对称体制, 第三信任方, 秘密水印, 公开水印

Abstract: Aiming at the low efficiency in current architectures of digital watermarking, it provides a new architecture—asymmetric digital watermark. This architecture has the third trusted party as the center. And by using two watermarks(secret watermark and public watermark)and “watermark browser”, users can independently extract and display the intellectual property information hidden in the digital multimedia. It not only makes the intellectual property information public, but also highly improves the efficiency. In the results, this architecture can protect the intellectual property of creators, avoid users from unauthorized use, and regular the authentication and the management of the intellectual property.

Key words: digital watermark, symmetric system, asymmetric system, third trusted party, secret watermark, public watermark