I have below connection strings in web config file:

```

 <connectionStrings>
    <add name="ConString2" connectionString="Data Source=testdb;Persist Security Info=True;User ID=test;Password=test;Unicode=True;" providerName="System.Data.OracleClient"/>
    <add name="ConString3" connectionString="Data Source=testdb;Persist Security Info=True;User ID=test;Password=test;Unicode=True;" providerName="Oracle.DataAccess.Client"/>
  </connectionStrings>

```

I want to keep connection string in encrypted format and when I use to fetch the data from database I want to decrypt connection and connects to DB.