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Subject: Re: [saml-dev] Which version to use?
Scott, Thanks for your reply. > They're not exactly the same, just functionally equivalent. SAMLv2 is the > successor to ID-FF 1.2 in terms of Liberty progression. It has features > ID-FF 1.2 doesn't, because it's a merge of existing work into a new spec. > I know they are exactly not the same for eg, ECP in SAML talks about PAOS (from liberty phase 2) & thus completes the specification of the profile in a good way but functionally not different. > There is no direct wire interoperability, any more than there is between > ID-FF 1.1 and 1.2, or SAML 1.1 and SAMLv2. Interop is a product-level > issue. > I'm sure many vendors will implement both, but that's their business. The > direction of evolution is still one-way, at least in the SAML community. > So we envision a world where there will be an IDP based on SAML 2.0 & SP based on Liberty-IDFF-1.2/Phase2 & we do leave the possibility of problems of wire interoperability. Scott, I am also sure vendors will implement both as they will be left with no other choice like having a merge of SAML & Liberty standard into one. Kapil Sachdeva http://www.dotnetcard.com/blogs/ksachdeva ----- Original Message ----- From: "Scott Cantor" <cantor.2@osu.edu> To: "'Kapil Sachdeva'" <ksachdeva@sbcglobal.net> Cc: <saml-dev@lists.oasis-open.org> Sent: Monday, November 08, 2004 12:30 PM Subject: RE: [saml-dev] Which version to use? >> Could you please elaborate what makes Liberty not an option if both >> specifications are the same except for schema namespaces ? > > They're not exactly the same, just functionally equivalent. SAMLv2 is the > successor to ID-FF 1.2 in terms of Liberty progression. It has features > ID-FF 1.2 doesn't, because it's a merge of existing work into a new spec. > >> The thing is that I am not able to understand the existence of two >> parallel standards and that too when two standard organizations have >> 90% common companies formulating the specifications. > > They're not parallel, SAMLv2 is the standardization via OASIS of the > functional work done in ID-FF plus additional issues raised by SAML > deployments. One follows from the other. > >> For me (unless I am very wrong) I see the vendors implementing two >> parallel specs i.e. Liberty-ID-FF-1.2 & SAML 2.0. And for sure will >> arise an issue of interoperabilty between 2 of them in near future. > > There is no direct wire interoperability, any more than there is between > ID-FF 1.1 and 1.2, or SAML 1.1 and SAMLv2. Interop is a product-level > issue. > I'm sure many vendors will implement both, but that's their business. The > direction of evolution is still one-way, at least in the SAML community. > > -- Scott >
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