windows runtime - Winrt certificates -

i took on developing of winrt mobile app. have 1 question, app has 2 certificates. "appname_storekey.pfx" , "appname_temporarykey.pfx". cen easly create "appname_temporarykey.pfx" visual studio. can create "appname_storekey.pfx"? created during creating app packages store?

it's created when associate project store app entity.