# §15.2_主动防御_可信计算 数字水印技术

LLMS index: [llms.txt](/wikis/llms.txt)

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### 可信计算
![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/d32a7fe535fcd24a4b166915b72820ac_MD5.png)

![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/296e10d087ece58e57be22c4915c1bbc_MD5.png)



![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/fbd3959df153c39c1ea1794d0e0150b7_MD5.png)

启动和运行时都检查。

![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/29f948bd52ecee2f4094427f92a60d9a_MD5.png)



### 数字水印
![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/739c2a58f0a9f148ffecf86dad0afc7f_MD5.png)

变换域方法 利用扩展频谱通信技术和Hash函数。

![](/wikis/_resources/%C2%A715.2_%E4%B8%BB%E5%8A%A8%E9%98%B2%E5%BE%A1_%E5%8F%AF%E4%BF%A1%E8%AE%A1%E7%AE%97-%E6%95%B0%E5%AD%97%E6%B0%B4%E5%8D%B0%E6%8A%80%E6%9C%AF/819c7bd24d8c6de703a069f2592c1606_MD5.png)