详解C#App.config和Web.config加密

打开cmd，进入vs安装目录C:\Windows\Microsoft.NET\Framework64\v4.0.30319

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									cd C:\Windows\Microsoft.NET\Framework64\v4.0.30319

如果是Web.config就直接加密，是App.config就先改为Web.config才可以进行加密

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									aspnet_regiis -pef "节点" "项目路径"

例如：

需要加密的App.config数据库连接字符串为

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									<connectionStrings>

									 <add name="connStr" connectionString="Data Source=.;Initial Catalog=testDB;User ID=sa;Password=123456" />

									 </connectionStrings>

加密命令为

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									aspnet_regiis -pef "connectionStrings" "Web.config所在目录"

如加密失败

解决方案：

创建一个可导出的rsa密钥容器，命名为Key

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									aspnet_regiis -pc "Key" -exp

将Web.cofig/App.config的configuration增加属性值xmlns，即改为

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									<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

将数据库连接字符串改为以下：

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									<configProtectedData> 

									  <providers> 

									   <clear /> 

									   <add name="KeyProvider" type="System.Configuration.RsaProtectedConfigurationProvider, System.Configuration, Version=2.0.0.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" keyContainerName="Key" useMachineContainer="true"/> 

									  </providers> 

									</configProtectedData> 

									<connectionStrings> 

									  <add name="connStr" connectionString="Data Source=.;Initial Catalog=testDB;User ID=sa;Password=123456;" providerName="System.Data.SqlClient" /> 

									</connectionStrings>

开始对配置文件进行加密

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									aspnet_regiis -pef "connectionStrings" "Web.config所在目录" -prov "KeyProvider"

注意：vs会提示是否修改，选择全是

解密配置文件

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									aspnet_regiis -pdf "connectionStrings" "Web.config所在目录"

如果是App.config改成的Web.config，加密成功之后再改为App.config，并删除configuration的属性xmlns值

未加密的Web.config/App.config文件内容：

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									<?xml version="1.0" encoding="utf-8" ?>

									<configuration>

									  <startup> 

									    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />

									  </startup>

									 <connectionStrings>

									  <add name="connStr" connectionString="Data Source=.;Initial Catalog=testDB;User ID=sa;Password=123456" />

									 </connectionStrings>

									</configuration>

修改为加密后的Web.config/App.config文件内容：

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									<?xml version="1.0" encoding="utf-8" ?>

									<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

									 <startup> 

									    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />

									  </startup>

									 <configProtectedData> 

									    <providers> 

									      <clear /> 

									      <add name="KeyProvider" type="System.Configuration.RsaProtectedConfigurationProvider, System.Configuration, Version=2.0.0.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" keyContainerName="Key" useMachineContainer="true"/> 

									    </providers> 

									</configProtectedData> 

									<connectionStrings> 

									    <add name="connStr" connectionString="Data Source=.;Initial Catalog=testDB;User ID=sa;Password=123456;" providerName="System.Data.SqlClient" /> 

									</connectionStrings>

									</configuration>

加密后的Web.config/App.config文件内容：

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									<?xml version="1.0" encoding="utf-8" ?>

									<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">

									 <startup> 

									    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />

									  </startup>

									 <configProtectedData> 

									    <providers> 

									      <clear /> 

									      <add name="KeyProvider" type="System.Configuration.RsaProtectedConfigurationProvider, System.Configuration, Version=2.0.0.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" keyContainerName="Key" useMachineContainer="true"/> 

									    </providers> 

									</configProtectedData> 

									<connectionStrings configProtectionProvider="KeyProvider">

									 <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"

									  xmlns="http://www.w3.org/2001/04/xmlenc#">

									  <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#tripledes-cbc" />

									  <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">

									   <EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">

									    <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-1_5" />

									    <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">

									     <KeyName>Rsa Key</KeyName>

									    </KeyInfo>

									    <CipherData>

									     <CipherValue>lSLu2RVnlfr5om5MpBuqyhBETF6dI/glZ3zlfOQvzj+l1YmsOcfGVC1LgrDFcPLEbF/r1IZZYVnQuesz3AeVUkpNCG2OfMWDeaPULtJ5Ay24SYnBR4FNtQQSf1pijelXRGE8pzH7s49RLsKWQuwVTyMrOUoIMcmD4xIPmN/cqpQ=</CipherValue>

									    </CipherData>

									   </EncryptedKey>

									  </KeyInfo>

									  <CipherData>

									   <CipherValue>deXEhu/mqe+WkD51qXhi9jwBhEurU6EQXBQINOGOyDgpw/W4xTpi3DtTDcEzJXbaHvyKaXLfkPxxljce07ANtN7VXRfDov0Olsq/3+hkYqVXRI5A80XVkOKh2CQaVWx/GJC7JBbbRlKXJvS93M+OQWGKpW0twcZlL1ns97g5w8QstGN6vszAiZw1z6gKXlsrMf9224ExGq+dGJS9BSU+mxaKkd9EAVELMtWv2r7jIXsEneggDR49Mtdu91j1dsDj6am3NcaHmRQ=</CipherValue>

									  </CipherData>

									 </EncryptedData>

									</connectionStrings>

									</configuration>

导出密钥容器

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									spnet_regiis -px "Key" "d:\Key.xml"

注意：加上-pri参数为导出公钥+私钥

导入密钥容器

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									aspnet_regiis -pi "Key" "d:\Key.xml"

删除密钥容器

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									aspnet_regiis -pz "Key"

注意：删除密钥程序会报错

原文链接：https://www.idaobin.com/archives/1201.html

详解C#App.config和Web.config加密

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