In today's wonderful computing world you have a number of really popular companies (such as twitter, Google and Facebook to name a few) and they have a huge user base. To allow these users access to your web services you can use something called an API (Application Programming interface). An API allows a programmer to integrate a product or service into their particular product or service (such as a wordpress blog). A popular example would be having a GMail account and creating or accessing Your Wordpress account. This is made possible by their APIs which is why you see buttons like "Connect with Facebook" or "login with your GMail Account".
Who currently uses the Open ID Standard?
Look for the “Sign in with a Google Account” button or use your Google Profile URL | Look for the “Sign in with Yahoo” button. | Look for the “Yahoo! JAPAN IDでログイン” button. |
Enter “username.livejournal.com” | ||
mixi is a web service that allows users to communicate with their friends and acquaintances. | ||
Look for the “Login with MySpaceID” button or enter “www.myspace.com/username” | Look for a “Sign in with AOL” button or enter “openid.aol.com/screenname” | |
Chi.mp allows you to create your own social hub on an OpenID domain you own and control. | ClaimID is an easy way to manage your online identity with OpenID. | myID.net is an OpenID provider with support for groups and the Korean language. |
myOpenID is the first standalone provider for both individuals and businesses, with secure multi-factor authentication. | VeriSign’s Personal Identity Provider is an OpenID provider with support for multi-factor authentication. | Your Internet ID lets you build a social identity to use on the web. |
Please note who is notice who is missing from the list most noticeably Apple and Microsoft.
What are some benefits of using OpenID?
Most websites ask for an extended, repetitive amount of information in order to use their application. OpenID allows you to sign in to websites with a single click. Basic profile information (such as your name, birth date etc) can be used to pre-populate registration forms, so you spend more time engaging and less time filling out annoying registration pages.Allowing the user to use Open ID will help reduce frustration and keep the user to a minimum number of multiple usernames and passwords which they may find difficult to remember. Since password recovery process is tedious the user will be more inclined to use the site that makes it easiest for them to use. However using the same password at each of your favorite websites poses a security risk. With OpenID, you can use a single, existing account (from providers like Google, Yahoo, AOL or your own blog) to sign in to thousands of websites without ever needing to create another username and password. This makes OpenID is the safer and easier method to joining new sites.OpenID is a decentralized standard, meaning it is not controlled by any one website or service provider. You control how much personal information you choose to share with websites that accept OpenID. Multiple OpenIDs can be used for different websites or purposes. If your email (Google, Yahoo, AOL), photo stream (Flickr) or blog (Blogger, WordPress, LiveJournal) serves as your primary online presence, OpenID allows you to have a portable identity across the web.Many web users deploy the same password across multiple websites. And since traditional passwords are not centrally administered, if a security compromise occurs at any website you use, a hacker could gain access to your password across multiple sites. OpenID is more secure because passwords are never shared with any websites, and if a compromise does occur, you can simply change the password for your OpenID, thus immediately preventing a hacker from gaining access to your accounts at any websites you visit.Since the focus of most OpenID providers (such as Google, Yahoo and AOL) is in identity management, they can be more thorough about protecting your online identity. Most website operators are less likely to be as dedicated to protecting your identity as the OpenID providers, whose focus is on securely hosting user identities.Plugins such as the Wordpress Open ID plugin allows users to login to their local WordPress account using an OpenID. This also allows the enabling of commenters to leave authenticated comments using OpenID. The plugin also includes an OpenID provider, enabling users to login to OpenID-enabled sites using their own personal WordPress account. XRDS-Simple is required for the OpenID Provider and some features of the OpenID Consumer.Developer documention for the Wordpress Open ID API, which includes all of the public methods and hooks for integrating with and extending the plugin, can be found here.
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