c# - Owin use external forms authentication cookie -

so think issue going have 1 mvc website using standard forms authentication , 1 mvc geared more towards asp.net identity.

what trying configure owin authentication read , accept auth cookie generated standard mvc forms auth site. configured below can't seem owin accept cookie.

app.setdefaultsigninasauthenticationtype(defaultauthenticationtypes.externalcookie); app.usecookieauthentication(new cookieauthenticationoptions {     authenticationtype = defaultauthenticationtypes.externalcookie,     authenticationmode = authenticationmode.active,     loginpath = new pathstring("/account/login"),     cookiehttponly = true,     cookiename = "myauthcookie",     cookiedomain = ".mydomain.com",     cookiepath = "/",     provider = new cookieauthenticationprovider     {         // enables application validate security stamp when user logs in.         // security feature used when change password or add external login account.           onvalidateidentity = securitystampvalidator.onvalidateidentity<applicationusermanager, applicationuser>(             validateinterval: timespan.fromminutes(30),             regenerateidentity: (manager, user) => user.generateuseridentityasync(manager))     } }); 

what trying accomplish not possible. cookie authentication middleware claims-based , serializes claims associated identity authentication ticket in cookie. forms authentication stores user name , additional data knows nothing claims. basically, authentication ticket put inside cookie different in both cases , not able cookie authentication middleware read ticket created fam or vice versa.