“白名单”过滤器的响应包含某种唯一的可以识别原始消息的代码，譬如，一个散列或序列标识。

The whitelist filter's response contains some kind of unique code that identifies the original message, such as a hash or sequential ID.

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提出了一种利用加密算法并结合散列函数选择文本中嵌入水印的汉字序列的算法。

A text image watermarking algorithm using encryption and hashing function is presented to choose Chinese characters sequence which need to be embedded watermarking.

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