Prabath Siriwardena is the Director of Security Architecture at WSO2 and an Apache Axis2 PMC member. He maintains a blog on security and identity and has authored several books. The document then outlines the evolution of key identity standards and providers from Yahoo and Hotmail in the 1990s to the development of SAML, OpenID, OAuth and their adoption by major tech companies from the mid-2000s to the present.

1. Prabath Siriwardena, @prabath

2. About Me
 Director of Security Architecture at WSO2.
 Apache Axis2 PMC member.
 Blogger: http://blog.facilelogin.com
 Books:
 Advanced API Security, Apress
 Enterprise Integration with WSO2 ESB, PACKT
 Mastering Apache Maven 3, PACKT (Dec, 2014)

3. Identity

4. Yahoo! - 1995

5. Hotmail - 1997

6. Hotmail – 1997 +

7. Microsoft Passport – 1999

8. Facebook – 2004

9. Gmail – 2004

10. User Centric Identity – 2005

11. Laws of Identity – 2005

12. SAML 2.0 – March/2005

13. Information Card – 2005

14. OpenID – 2005

15. Google Calendar – April/2006

16. Google AuthSub – June/2006

17. Windows Live – Aug/2007

18. OAuth 1.0 – Dec/2007

19. Yahoo! – Jan/2008

20. Blogger – Jan/2008

21. Facebook Connect – May/2008

22. Google – June/2008

23. Google – Oct/2008

24. Google Apps – 2008
SAML2 Web SSO

25. Twitter – 2008/2009

26. Hi5 – 2008/2009

27. Slideshare– 2008/2009

28. OpenID Hybrid – Jan/2009

29. Twitter – Jan/2009
Beta…

30. Google Apps – July/2009

31. Yahoo! – Sept/2009

32. Open Web Foundation – November/2009

33. OAuth 2.0 – Dec/2009

34. OAuth Evolution

35. Google Apps – March/2010

36. OpenID Connect – May/2010

37. Twitter – July/2010

38. Twitter – Aug/2010

39. Google Apps – March/2011

40. SCIM – May/2011

41. Identity Provisioning

42. OpenID Connect (final) – Feb/2014

43. Gmail – 2014

44. OpenID  OpenID Connect – 2014