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Overview of OAUTH

In our modern web development login to the web application to access the resources takes different forms in last few years. Since from 2009 we can able to see many sites facilitate their users  by providing third party authentication/authorization. The main use of this 3rd party authentication/authorization is they no need to create there information with each client application. Just they can make use of their existing user account from different resource server(Facebook,twitter,linkedin…)

Most of the 3rd party authentication/authorization provides are from social networking/commercial web application one of main advantage here is they can easily share their information with other over the network.Currently there are more number of 3rd party authentication/authorization provides, in the developer stand if we need to integrate each provides in this point OAUTH come into picture.

OAUTH is a common standard implemented by the each 3rd party provides to implement with out application. OAUTH provide the secure way of access the resource information need for client application.Through OAUTH user can authentication/authorization the client application to access there information without sharing there credential. As per the specification of OAUTH the communication happen client application and resource server through access_token.

List of popular 3rd party provides using OAUTH

1) Facebook
2) Google
3) twitter
4) LinkedIn
5) Microsoft
6) Yammer
7) Instagram
8) PayPal

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