好的数字水印协议可以防止数字产品的非法传播，并且在不需要第三方公证的情况下可防止对诚实用户的误指控。
A perfect digital-watermarking protocol can prevent illegal distribution of digital products and avoid false-accusation to an honest buyer without the third part authorization.
好的数字水印协议可以防止数字产品的非法传播，并且在不需要第三方公证的情况下可防止对诚实用户的误指控。
A perfect digital-watermarking protocol can prevent illegal distribution of digital products and avoid false-accusation to an honest buyer without the third part authorization.
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