This C# OpenID library adds OpenID 2.0 Provider and Relying Party support to your web site both programmatically and through convenient drop-in ASP.NET controls.
Check out the VersionChanges page to see where we're going or where we've been. Important breaking changes in version 2.3 from prior releases
Features
- Add support for your site visitors to login with their OpenIDs by just dropping an ASP.NET control onto your page. It's that easy. An AJAX-style login control is also included for a slick, streamlined user experience.
- Give your site members their own OpenIDs with the provider support included in this library.
- Sample relying party and provider web sites show you just how to do it.
- Easy access to all the functionality so you can customize how OpenID will operate on your site, whether you use ASP.NET or not. New CTP showing off Classic ASP support!
- Full support for custom extensions. Plus built-in support for Simple Registration, Attribute Exchange and PAPE.
- Works in partial trusted shared hosting environments.
- Support for web farms where state persistence, front-facing web servers and ASP.NET may not be standard or even available.
- OpenId 2.0 and 1.x support.
- Superior support for multi-byte Unicode identifiers.
- Lots of Security features
- 250+ unit tests to verify correctness.
Requirements
- .NET Framework 2.0
- Microsoft Windows (Linux+mono: your mileage may vary)
History
This library was originally a port from the JanRain OpenId library that was written in the .NET Boo language, and that library was a port from a Python library. It has come a long way since then.