Does Craft Commerce support One Time Password and Social Login features? I have just started reviewing this plugin for e-commerce development. Fully featured though it is, I wanted to know if Craft Commerce can also support custom auth (login and registration) features such as One Time Password using a mobile cell number and Social Login through facebook and twitter?

Is it possible to build or use an existing plugin around these features?
Craft Pro gives you the ability to add multiple user accounts to your site. Craft Commerce is a plugin that extends Craft so user accounts and everything that goes with them are available to use. 

There is a plugin to enable social logins (currently in beta) made by Dukt that you may find helpful.