set all cookie become httpOnlyCookies="true" requireSSL="true"

How do I enable the httpOnlyCookies and requireSSL for all the cookie in IIS 7.5 ?

I have tried adding

<httpCookies httpOnlyCookies="true" requireSSL="true" />

within the web.config's

<system.webServer>

but it show 500 Internal Error.