how to use hashed password in impersonate of ASP.NET

I have an ASP.NET application that requires impersonation as an administrato开发者_如何学运维r user. In web.config:

<identity impersonate="true" userName="administrator" password="password"/>

The customer complained about saving the password in clear text format. Is there a way to save the password here as hashed?

aspnet_regiis with the appropriate switch should do the trick, see this article.