Hi Pengcheng, It's quite possible to find tutorials online on implementing your own login form, storage of usernames and passwords, hashed salting of stored passwords, etc. However the convenience of implementing federated login schemes is what actually makes them attractive. You should check out http://gae-login-explainer.appspot.com/#section_Google_signin and the Google Identity Platform Docs <https://developers.google.com/identity/sign-in/web/> to see how easy it can be to implement sign-in without having to bother with much authentication flows and security details yourself.
Best wishes, Nick On Monday, August 10, 2015 at 6:02:41 PM UTC-4, Pengcheng Yin wrote: > > Hello, community! I am developing an app on Android, GAE as backend, I > want to implement user account services, which I mean login/register. All > solutions I can find are using Google account, but I only want to use my > own account system. It seems impractical for me to implement all the > authentication protocols. Any idea how should I do this? Thanks. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/ae63ee2a-c1f4-48ac-8219-83062a26c4e1%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
