Several benefits exist in adopting decentralized authentication schemes – reduction in  the number of clicks required for authentication, increased conversion rates and easy user-specific customization of services . This article discusses how you can log in users to your website using Facebook (decentralized) authentication schemes and the PHP SDK found on the Facebook developers website. To get a [...]

Facebook Authentication is built using OAuth2.0 framework and supports two main OAuth flows. – Server side and Client Side .The server side flow which is discussed in detail in this tutorial is used when the authentication call is made from your web server .e.g your php script, jsp script etc . The client side flow [...]

It has become a common trend to see large websites sporting a “Login with Facebook”, or “OpenID” button. Both of these Login/ Authencation technologies are examples of decentralized authentication. This article aims to discuss motivations for decentralized authentication, how it works, and the above mentioned authentication schemes as they are used today. (P.S these schemes are [...]

As an introduction, I have a budding interest in GIS systems and their applications in solving a wide array of problems.  According to Wikipedia, GIS is described as follows “Geographic information systems (GIS) or geospatial information systems is a set of tools that captures, stores, analyzes, manages, and presents data that are linked to location(s). [...]