针对Web.config敏感信息加密

cd C:\Windows\Microsoft.NET\Framework\v4.0.30319

==在appSettings节点上添加==
<configProtectedData>
<providers>
<add name="MyProvider" keyContainerName="自定义的密钥容器" useMachineContainer="true" 
type="System.Configuration.RsaProtectedConfigurationProvider,System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</providers>
</configProtectedData>
===========================

===自定义key===
aspnet_regiis -pc "自定义密钥容器" -exp

===对key进行授权===
aspnet_regiis -pa "自定义密钥容器" "NT AUTHORITY\NETWORK SERVICE"

===解决：返回错误信息：对象已存在===
aspnet_regiis -pa "NetFrameworkConfigurationKey" "域名\账户"

===对指定物理路径下web.config指定的节点加密===
aspnet_regiis -pef "appSettings" "D:\config" -prov "MyProvider"

===对指定物理路径下web.config指定的节点解密===
aspnet_regiis.exe -pef "appSettings" "d:/config/" 

Net程序读取配置文件内容，无需做任何变动；会自动解密！

参考：https://msdn.microsoft.com/zh-cn/library/2w117ede(v=vs.100).aspx