请教大师们,配置文件,这种加密是什么的加密,怎么解

Question

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings>
  <!-- <add name="WebSiteConnectionString" connectionString="4xvqs0zkKfReLYWGrZIKnSDNgbQ9y8rysik7CE4deX4aKt5GxFjgNbup7rTILWqqcIHfEfG/M7yAKVMgt0BB3JhCqQTcCyJv5i+Wzbx8v2lkMaLZVq7L0EZTf1FB7p7w" providerName="System.Data.SqlClient"/>-->
    <add name="WebSiteConnectionString" connectionString="Data Source=.;Initial Catalog=meili2009;Integrated Security=True" providerName="System.Data.SqlClient"/>
    <add name="localConnectionString" connectionString="JUVyErOpbKXPxGtG2sU/aYUd/tgz1+uocI65lqLoJEkDZRYN48J/CrEpSZdMqptqLMOrcWObLfc=" providerName="System.Data.SqlClient"/>
  </connectionStrings>
</configuration>
ConnectionString那