How to configure web.config file to support web service over HTTP and HTTPS ?

Do I need to change something in my code or just in web.config?

Config below works over HTTP, but I can't make it to work over HTTPS

Below is my web.config file for web service:

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation targetFramework="4.0">
      <assemblies>
        <add assembly="System.Web.Abstractions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add assembly="System.Web.Routing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
        <add assembly="System.Data.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
        <add assembly="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
      </assemblies>
    </compilation>
  </system.web>

  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="LotOfObjectsBehavior">
          <serviceMetadata httpGetEnabled="true" httpsGetEnabled="false" />
          <serviceDebug includeExceptionDetailInFaults="true" />
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <wsHttpBinding>
        <binding name="HttpsBigMessage" receiveTimeout="20:10:00" sendTimeout="20:10:00" maxReceivedMessageSize="2147483647">
          <security mode="Transport">
            <transport clientCredentialType="None" />
          </security>
        </binding>
      </wsHttpBinding>
      <basicHttpBinding>
        <binding name="HttpBigMessage"
                         receiveTimeout="20:10:00"
                         sendTimeout="20:10:00"
                         maxReceivedMessageSize="2147483647" >
          <security mode="None" />
        </binding>
      </basicHttpBinding>
    </bindings>
    <services>
      <service name="Nop.Plugin.Com.WebServices.NopService" behaviorConfiguration="LotOfObjectsBehavior">
        <endpoint address="" binding="basicHttpBinding" bindingConfiguration="HttpBigMessage"
                          contract="Nop.Plugin.Com.WebServices.INopService" />
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
      </service>
    </services>
  </system.serviceModel>
</configuration>