Cross Reference: /frameworks/base/docs/html/training/id-auth

`Name`	`Date`	`Size`
Up to higher level directory
`authenticate.jd`	25-Jul-2013	`11.5K`
`custom_auth.jd`	25-Jul-2013	`8.6K`
`identify.jd`	25-Jul-2013	`5.6K`
`index.jd`	25-Jul-2013	`1.9K`