使用前解密 AES connectionString.config 数据

我将连接字符串、用户名、密码存储在 connectionString.config 文件中。有没有办法解密所有这些值，然后在值未加密的情况下像往常一样连接？

欢迎所有建议，因为我不确定从这里开始，因为我没有发现Microsoft文档非常有用。

connectionString.config

<connectionStrings>
  <add name="as400"
       connectionString="DataSource=AgIrRzkARUJsQBUYXKCPpH8MdqtQ5Sd+lt4kyBEZBY=; userid=tRGgY7PERBTg2WPPzVerIlMP93kmQbTSuKsJKyDHFU=; password=kMxEGU75lJ1VD5OaaujnLzleR/7ZQDco3kddfwTOvI=;"/>
</connectionStrings>

应用配置

版

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
  </startup>
  <appSettings file="AppSettings.config"/>
  <connectionStrings configSource="connectionStrings.config"/>
</configuration>

应用程序代码

//Open connection to the iSeries
            iDB2Connection cn = new iDB2Connection();
            cn.ConnectionString = ConfigurationManager.ConnectionStrings[database].ConnectionString;

DataSet dsConnection = new DataSet();
dsConnection.ReadXml(System.Web.Hosting.HostingEnvironment.MapPath("~/ConnectionString.Config.xml"));
String connection = dsConnection.Tables[0].Rows[0]["connectionstring"].ToString();
SqlConnectionStringBuilder DBConfig = new SqlConnectionStringBuilder(connection); 
string ConnectionString = "Data Source=" + Decrypt(DBConfig.DataSource) + ";Initial Catalog=" + Decrypt(DBConfig.InitialCatalog) + ";User ID=" + Decrypt(DBConfig.UserID) + ";Password=" + Decrypt(DBConfig.Password);
iDB2Connection cn = new iDB2Connection();
cn.ConnectionString = ConnectionString;