tampers词根词缀

Experiments show that this authentication algorithm can tolerate JPEG lossy compression to a certain extent, while it is sensitive to malicious tampers. And those blocks detected as manipulated can be localized accurately at 88 pixel block level.

实验证明，它可以在一定程度上容忍JPEG压缩，对篡改操作敏感，并可以在88像素块的量级上对篡改区域进行精确定位。

The achieved innovative results are listed below. 1. The current fragile image watermarking algorithm with discrimination of tampers on watermark and content is analysed, and a conclusion that it is disabled for some tampers is obtained.

具体工作如下：1.分析了现有能区分图像内容和水印篡改的脆弱水印算法存在对某些篡改失效的问题。

The proposed scheme not only solves the problem of" once monitor, monitor forever", but also monitor agency can exactly decide which escrow agency forges or tampers secret shadow during monitor procedure.

不仅有效地解决了一次监听，永久监听问题，而且在监听阶段，监听机构能够确切地知道门限密钥托管方案中哪些托管代理伪造或篡改子密钥。