History
The original OpenID authentication protocol was developed in May 2005 by Brad Fitzpatrick, creator of popular community website LiveJournal, while working at Six Apart. Initially referred to as Yadis (an acronym for "Yet another distributed identity system"), it was named OpenID after the openid.net domain name was given to Six Apart to use for the project. OpenID support was soon implemented on LiveJournal and fellow LiveJournal engine community DeadJournal for blog post comments and quickly gained attention in the digital identity community. Web developer JanRain was an early supporter of OpenID, providing OpenID software libraries and expanding its business around OpenID-based services.
In late June, discussions started between OpenID users and developers from enterprise software company NetMesh, leading to collaboration on interoperability between OpenID and NetMesh's similar Light-Weight Identity (LID) protocol. The direct result of the collaboration was the Yadis discovery protocol, adopting the name originally used for OpenID. The new Yadis was announced on October 24, 2005. After a discussion at the 2005 Internet Identity Workshop a few days later, XRI/i-names developers joined the Yadis project, contributing their Extensible Resource Descriptor Sequence (XRDS) format for utilization in the protocol.
In December, developers at Sxip Identity began discussions with the OpenID/Yadis community after announcing a shift in the development of version 2.0 of its Simple Extensible Identity Protocol (SXIP) to URL-based identities like LID and OpenID. In March 2006, JanRain developed a Simple Registration (SREG) extension for OpenID enabling primitive profile-exchange and in April submitted a proposal to formalize extensions to OpenID. The same month, work had also begun on incorporating full XRI support into OpenID. Around early May, key OpenID developer David Recordon left Six Apart, joining VeriSign to focus more on digital identity and guidance for the OpenID spec. By early June, the major differences between the SXIP 2.0 and OpenID projects were resolved with the agreement to support multiple personas in OpenID by submission of an identity provider URL rather than a full identity URL. With this, as well as the addition of extensions and XRI support underway, OpenID was evolving into a full-fledged digital identity framework, with Recordon proclaiming "We see OpenID as being an umbrella for the framework that encompasses the layers for identifiers, discovery, authentication and a messaging services layer that sits atop and this entire thing has sort of been dubbed 'OpenID 2.0'. " In late July, Sxip began to merge its Digital Identity Exchange (DIX) protocol into OpenID, submitting initial drafts of the OpenID Attribute Exchange (AX) extension in August. Late in 2006, a ZDNet opinion piece made the case for OpenID to users, web site operators and entrepreneurs.
On January 31, 2007, Symantec announced support for OpenID in its Identity Initiative products and services. A week later, on February 6 Microsoft made a joint announcement with JanRain, Sxip, and VeriSign to collaborate on interoperability between OpenID and Microsoft's Windows CardSpace digital identity platform, with particular focus on developing a phishing-resistant authentication solution for OpenID. As part of the collaboration, Microsoft pledged to support OpenID in its future identity server products and JanRain, Sxip, and VeriSign pledged to add support for Microsoft's Information Card profile to their future identity solutions. In mid-February, AOL announced that an experimental OpenID provider service was functional for all AOL and AOL Instant Messenger (AIM) accounts.
In May, Sun Microsystems began working with the OpenID community, announcing an OpenID program, as well as entering a non-assertion covenant with the OpenID community, pledging not to assert any of its patents against implementations of OpenID. In June, OpenID leadership formed the OpenID Foundation, an Oregon-based public benefit corporation for managing the OpenID brand and property. The same month, an independent OpenID Europe Foundation was formed in Belgium by Snorri Giorgetti. By early December, non-assertion agreements were collected by the major contributors to the protocol and the final OpenID Authentication 2.0 and OpenID Attribute Exchange 1.0 specifications were ratified on December 5.
In mid-January 2008, Yahoo! announced initial OpenID 2.0 support, both as a provider and as a relying party, releasing the provider service by the end of the month. In early February, Google, IBM, Microsoft, VeriSign and Yahoo! joined the OpenID Foundation as corporate board members. Around early May, SourceForge, Inc. introduced OpenID provider and relying party support to leading open source software development website SourceForge.net. In late July, popular social network service MySpace announced support for OpenID as a provider. In late October, Google launched support as an OpenID provider and Microsoft announced that Windows Live ID would support OpenID. In November, JanRain announced a free hosted service, RPX Basic, that allows websites to begin accepting OpenIDs for registration and login without having to install, integrate and configure the OpenID open source libraries.
In January 2009, PayPal joined the OpenID Foundation as a corporate member, followed shortly by Facebook in February. The OpenID Foundation formed an executive committee and appointed Don Thibeau as executive director. In March, MySpace launched their previously announced OpenID provider service, enabling all MySpace users to use their MySpace URL as an OpenID. In May, Facebook launched their relying party functionality, letting users use an automatic login-enabled OpenID account (e.g. Google) to log into Facebook.
Read more about this topic: Open ID
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