draft-ietf-oauth-saml2-bearer-16.txt   draft-ietf-oauth-saml2-bearer-17.txt 
OAuth Working Group B. Campbell OAuth Working Group B. Campbell
Internet-Draft Ping Identity Internet-Draft Ping Identity
Intended status: Standards Track C. Mortimore Intended status: Standards Track C. Mortimore
Expires: September 30, 2013 Salesforce Expires: January 15, 2014 Salesforce
M.B. Jones M. Jones
Microsoft Microsoft
March 29, 2013 July 14, 2013
SAML 2.0 Profile for OAuth 2.0 Client Authentication and Authorization SAML 2.0 Profile for OAuth 2.0 Client Authentication and Authorization
Grants Grants
draft-ietf-oauth-saml2-bearer-16 draft-ietf-oauth-saml2-bearer-17
Abstract Abstract
This specification defines the use of a SAML 2.0 Bearer Assertion as This specification defines the use of a SAML 2.0 Bearer Assertion as
a means for requesting an OAuth 2.0 access token as well as for use a means for requesting an OAuth 2.0 access token as well as for use
as a means of client authentication. as a means of client authentication.
Status of This Memo Status of this Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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This Internet-Draft will expire on September 30, 2013. This Internet-Draft will expire on January 15, 2014.
Copyright Notice Copyright Notice
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Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Notational Conventions . . . . . . . . . . . . . . . . . 4 1.1. Notational Conventions . . . . . . . . . . . . . . . . . . 4
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. HTTP Parameter Bindings for Transporting Assertions . . . . . 4 2. HTTP Parameter Bindings for Transporting Assertions . . . . . 4
2.1. Using SAML Assertions as Authorization Grants . . . . . . 4 2.1. Using SAML Assertions as Authorization Grants . . . . . . 5
2.2. Using SAML Assertions for Client Authentication . . . . . 5 2.2. Using SAML Assertions for Client Authentication . . . . . 5
3. Assertion Format and Processing Requirements . . . . . . . . 6 3. Assertion Format and Processing Requirements . . . . . . . . . 6
3.1. Authorization Grant Processing . . . . . . . . . . . . . 8 3.1. Authorization Grant Processing . . . . . . . . . . . . . . 8
3.2. Client Authentication Processing . . . . . . . . . . . . 9 3.2. Client Authentication Processing . . . . . . . . . . . . . 9
4. Authorization Grant Example . . . . . . . . . . . . . . . . . 9 4. Authorization Grant Example . . . . . . . . . . . . . . . . . 9
5. Interoperability Considerations . . . . . . . . . . . . . . . 11 5. Interoperability Considerations . . . . . . . . . . . . . . . 11
6. Security Considerations . . . . . . . . . . . . . . . . . . . 11 6. Security Considerations . . . . . . . . . . . . . . . . . . . 11
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
7.1. Sub-Namespace Registration of urn:ietf:params:oauth 7.1. Sub-Namespace Registration of
:grant-type:saml2-bearer . . . . . . . . . . . . . . . . 11 urn:ietf:params:oauth:grant-type:saml2-bearer . . . . . . 11
7.2. Sub-Namespace Registration of urn:ietf:params:oauth 7.2. Sub-Namespace Registration of
:client-assertion-type:saml2-bearer . . . . . . . . . . . 11 urn:ietf:params:oauth:client-assertion-type:saml2-bearer . 12
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 12 8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8.1. Normative References . . . . . . . . . . . . . . . . . . 12 8.1. Normative References . . . . . . . . . . . . . . . . . . . 12
8.2. Informative References . . . . . . . . . . . . . . . . . 12 8.2. Informative References . . . . . . . . . . . . . . . . . . 13
Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 13 Appendix A. Acknowledgements . . . . . . . . . . . . . . . . . . 13
Appendix B. Document History . . . . . . . . . . . . . . . . . . 13 Appendix B. Document History . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 19 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 19
1. Introduction 1. Introduction
The Security Assertion Markup Language (SAML) 2.0 The Security Assertion Markup Language (SAML) 2.0
[OASIS.saml-core-2.0-os] is an XML-based framework that allows [OASIS.saml-core-2.0-os] is an XML-based framework that allows
identity and security information to be shared across security identity and security information to be shared across security
domains. The SAML specification, while primarily targeted at domains. The SAML specification, while primarily targeted at
providing cross domain Web browser single sign-on, was also designed providing cross domain Web browser single sign-on, was also designed
to be modular and extensible to facilitate use in other contexts. to be modular and extensible to facilitate use in other contexts.
skipping to change at page 5, line 9 skipping to change at page 5, line 20
Grants [I-D.ietf-oauth-assertions] specification with the following Grants [I-D.ietf-oauth-assertions] specification with the following
specific parameter values and encodings. specific parameter values and encodings.
The value of the "grant_type" parameter MUST be The value of the "grant_type" parameter MUST be
"urn:ietf:params:oauth:grant-type:saml2-bearer". "urn:ietf:params:oauth:grant-type:saml2-bearer".
The value of the "assertion" parameter MUST contain a single SAML 2.0 The value of the "assertion" parameter MUST contain a single SAML 2.0
Assertion. The SAML Assertion XML data MUST be encoded using Assertion. The SAML Assertion XML data MUST be encoded using
base64url, where the encoding adheres to the definition in Section 5 base64url, where the encoding adheres to the definition in Section 5
of RFC 4648 [RFC4648] and where the padding bits are set to zero. To of RFC 4648 [RFC4648] and where the padding bits are set to zero. To
avoid the need for subsequent encoding steps (by "application/x-www- avoid the need for subsequent encoding steps (by "application/
form-urlencoded" [W3C.REC-html401-19991224], for example), the x-www-form-urlencoded" [W3C.REC-html401-19991224], for example), the
base64url encoded data SHOULD NOT be line wrapped and pad characters base64url encoded data SHOULD NOT be line wrapped and pad characters
("=") SHOULD NOT be included. ("=") SHOULD NOT be included.
The "scope" parameter may be used, as defined in the Assertion The "scope" parameter may be used, as defined in the Assertion
Framework for OAuth 2.0 Client Authentication and Authorization Framework for OAuth 2.0 Client Authentication and Authorization
Grants [I-D.ietf-oauth-assertions] specification, to indicate the Grants [I-D.ietf-oauth-assertions] specification, to indicate the
requested scope. requested scope.
Authentication of the client is optional, as described in Authentication of the client is optional, as described in Section
Section 3.2.1 of OAuth 2.0 [RFC6749] and consequently, the 3.2.1 of OAuth 2.0 [RFC6749] and consequently, the "client_id" is
"client_id" is only needed when a form of client authentication that only needed when a form of client authentication that relies on the
relies on the parameter is used. parameter is used.
The following non-normative example demonstrates an Access Token The following non-normative example demonstrates an Access Token
Request with an assertion as an authorization grant (with extra line Request with an assertion as an authorization grant (with extra line
breaks for display purposes only): breaks for display purposes only):
POST /token.oauth2 HTTP/1.1 POST /token.oauth2 HTTP/1.1
Host: as.example.com Host: as.example.com
Content-Type: application/x-www-form-urlencoded Content-Type: application/x-www-form-urlencoded
grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Asaml2-bearer& grant_type=urn%3Aietf%3Aparams%3Aoauth%3Agrant-type%3Asaml2-bearer&
skipping to change at page 6, line 29 skipping to change at page 6, line 38
3. Assertion Format and Processing Requirements 3. Assertion Format and Processing Requirements
In order to issue an access token response as described in OAuth 2.0 In order to issue an access token response as described in OAuth 2.0
[RFC6749] or to rely on an Assertion for client authentication, the [RFC6749] or to rely on an Assertion for client authentication, the
authorization server MUST validate the Assertion according to the authorization server MUST validate the Assertion according to the
criteria below. Application of additional restrictions and policy criteria below. Application of additional restrictions and policy
are at the discretion of the authorization server. are at the discretion of the authorization server.
1. The Assertion's <Issuer> element MUST contain a unique 1. The Assertion's <Issuer> element MUST contain a unique
identifier for the entity that issued the Assertion. identifier for the entity that issued the Assertion. Issuer
values SHOULD be compared using the Simple String Comparison
method defined in Section 6.2.1 of RFC 3986 [RFC3986], unless
otherwise specified by the application.
2. The Assertion MUST contain a <Conditions> element with an 2. The Assertion MUST contain a <Conditions> element with an
<AudienceRestriction> element with an <Audience> element that <AudienceRestriction> element with an <Audience> element that
identifies the authorization server as an intended audience. identifies the authorization server as an intended audience.
Section 2.5.1.4 of Assertions and Protocols for the OASIS Section 2.5.1.4 of Assertions and Protocols for the OASIS
Security Assertion Markup Language [OASIS.saml-core-2.0-os] Security Assertion Markup Language [OASIS.saml-core-2.0-os]
defines the <AudienceRestriction> and <Audience> elements and, defines the <AudienceRestriction> and <Audience> elements and,
in addition to the URI references discussed there, the token in addition to the URI references discussed there, the token
endpoint URL of the authorization server MAY be used as a URI endpoint URL of the authorization server MAY be used as a URI
that identifies the authorization server as an intended that identifies the authorization server as an intended
audience. Assertions that do not identify the Authorization audience. Assertions that do not identify the Authorization
Server as an intended audience MUST be rejected. Server as an intended audience MUST be rejected. Audience
values SHOULD be compared using the Simple String Comparison
method defined in Section 6.2.1 of RFC 3986 [RFC3986], unless
otherwise specified by the application.
3. The Assertion MUST contain a <Subject> element. The subject MAY 3. The Assertion MUST contain a <Subject> element. The subject MAY
identify the resource owner for Additional information identify the resource owner for Additional information
identifying the subject/principal of the transaction MAY be identifying the subject/principal of the transaction MAY be
included in an <AttributeStatement>. included in an <AttributeStatement>.
a. When using an Assertion as an authorization grant, the A. When using an Assertion as an authorization grant, the
Subject SHOULD identify an authorized accessor for whom the Subject SHOULD identify an authorized accessor for whom the
access token is being requested (typically the resource access token is being requested (typically the resource
owner, or an authorized delegate). owner, or an authorized delegate).
b. For client authentication, the Subject MUST be the B. For client authentication, the Subject MUST be the
"client_id" of the OAuth client. "client_id" of the OAuth client.
4. The Assertion MUST have an expiry that limits the time window 4. The Assertion MUST have an expiry that limits the time window
during which it can be used. The expiry can be expressed either during which it can be used. The expiry can be expressed either
as the NotOnOrAfter attribute of the <Conditions> element or as as the NotOnOrAfter attribute of the <Conditions> element or as
the NotOnOrAfter attribute of a suitable the NotOnOrAfter attribute of a suitable
<SubjectConfirmationData> element. <SubjectConfirmationData> element.
5. The <Subject> element MUST contain at least one 5. The <Subject> element MUST contain at least one
<SubjectConfirmation> element that allows the authorization <SubjectConfirmation> element that allows the authorization
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The example shows an assertion issued and signed by the SAML Identity The example shows an assertion issued and signed by the SAML Identity
Provider identified as "https://saml-idp.example.com". The subject Provider identified as "https://saml-idp.example.com". The subject
of the assertion is identified by email address as of the assertion is identified by email address as
"brian@example.com", who authenticated to the Identity Provider by "brian@example.com", who authenticated to the Identity Provider by
means of a digital signature where the key was validated as part of means of a digital signature where the key was validated as part of
an X.509 Public Key Infrastructure. The intended audience of the an X.509 Public Key Infrastructure. The intended audience of the
assertion is "https://saml-sp.example.net", which is an identifier assertion is "https://saml-sp.example.net", which is an identifier
for a SAML Service Provider with which the authorization server for a SAML Service Provider with which the authorization server
identifies itself. The assertion is sent as part of an access token identifies itself. The assertion is sent as part of an access token
request to the authorization server's token endpoint at "https:// request to the authorization server's token endpoint at
authz.example.net/token.oauth2". "https://authz.example.net/token.oauth2".
Below is an example SAML 2.0 Assertion (whitespace formatting is for Below is an example SAML 2.0 Assertion (whitespace formatting is for
display purposes only): display purposes only):
<Assertion IssueInstant="2010-10-01T20:07:34.619Z" <Assertion IssueInstant="2010-10-01T20:07:34.619Z"
ID="ef1xsbZxPV2oqjd7HTLRLIBlBb7" ID="ef1xsbZxPV2oqjd7HTLRLIBlBb7"
Version="2.0" Version="2.0"
xmlns="urn:oasis:names:tc:SAML:2.0:assertion"> xmlns="urn:oasis:names:tc:SAML:2.0:assertion">
<Issuer>https://saml-idp.example.com</Issuer> <Issuer>https://saml-idp.example.com</Issuer>
<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"> <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
[...omitted for brevity...] [...omitted for brevity...]
</ds:Signature> </ds:Signature>
<Subject> <Subject>
<NameID <NameID
Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"> Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress">
brian@example.com brian@example.com
</NameID> </NameID>
<SubjectConfirmation <SubjectConfirmation
Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"> Method="urn:oasis:names:tc:SAML:2.0:cm:bearer">
<SubjectConfirmationData <SubjectConfirmationData
NotOnOrAfter="2010-10-01T20:12:34.619Z" NotOnOrAfter="2010-10-01T20:12:34.619Z"
Recipient="https://authz.example.net/token.oauth2"/> Recipient="https://authz.example.net/token.oauth2"/>
</SubjectConfirmation> </SubjectConfirmation>
</Subject> </Subject>
<Conditions> <Conditions>
<AudienceRestriction> <AudienceRestriction>
<Audience>https://saml-sp.example.net</Audience> <Audience>https://saml-sp.example.net</Audience>
</AudienceRestriction> </AudienceRestriction>
</Conditions> </Conditions>
<AuthnStatement AuthnInstant="2010-10-01T20:07:34.371Z"> <AuthnStatement AuthnInstant="2010-10-01T20:07:34.371Z">
<AuthnContext> <AuthnContext>
<AuthnContextClassRef> <AuthnContextClassRef>
urn:oasis:names:tc:SAML:2.0:ac:classes:X509 urn:oasis:names:tc:SAML:2.0:ac:classes:X509
</AuthnContextClassRef> </AuthnContextClassRef>
</AuthnContext> </AuthnContext>
</AuthnStatement> </AuthnStatement>
</Assertion> </Assertion>
Figure 1: Example SAML 2.0 Assertion Figure 1: Example SAML 2.0 Assertion
To present the Assertion shown in the previous example as part of an To present the Assertion shown in the previous example as part of an
access token request, for example, the client might make the access token request, for example, the client might make the
following HTTPS request (with extra line breaks for display purposes following HTTPS request (with extra line breaks for display purposes
only): only):
POST /token.oauth2 HTTP/1.1 POST /token.oauth2 HTTP/1.1
Host: authz.example.net Host: authz.example.net
skipping to change at page 11, line 32 skipping to change at page 11, line 46
No additional security considerations apply beyond those described No additional security considerations apply beyond those described
within The OAuth 2.0 Authorization Framework [RFC6749], the Assertion within The OAuth 2.0 Authorization Framework [RFC6749], the Assertion
Framework for OAuth 2.0 Client Authentication and Authorization Framework for OAuth 2.0 Client Authentication and Authorization
Grants [I-D.ietf-oauth-assertions], and the Security and Privacy Grants [I-D.ietf-oauth-assertions], and the Security and Privacy
Considerations for the OASIS Security Assertion Markup Language Considerations for the OASIS Security Assertion Markup Language
(SAML) V2.0 [OASIS.saml-sec-consider-2.0-os] specifications. (SAML) V2.0 [OASIS.saml-sec-consider-2.0-os] specifications.
7. IANA Considerations 7. IANA Considerations
7.1. Sub-Namespace Registration of urn:ietf:params:oauth:grant- 7.1. Sub-Namespace Registration of
type:saml2-bearer urn:ietf:params:oauth:grant-type:saml2-bearer
This is a request to IANA to please register the value "grant- This is a request to IANA to please register the value
type:saml2-bearer" in the registry urn:ietf:params:oauth established "grant-type:saml2-bearer" in the registry urn:ietf:params:oauth
in An IETF URN Sub-Namespace for OAuth [RFC6755]. established in An IETF URN Sub-Namespace for OAuth [RFC6755].
o URN: urn:ietf:params:oauth:grant-type:saml2-bearer o URN: urn:ietf:params:oauth:grant-type:saml2-bearer
o Common Name: SAML 2.0 Bearer Assertion Grant Type Profile for o Common Name: SAML 2.0 Bearer Assertion Grant Type Profile for
OAuth 2.0 OAuth 2.0
o Change controller: IETF o Change controller: IETF
o Specification Document: [[this document]] o Specification Document: [[this document]]
7.2. Sub-Namespace Registration of urn:ietf:params:oauth:client- 7.2. Sub-Namespace Registration of
assertion-type:saml2-bearer urn:ietf:params:oauth:client-assertion-type:saml2-bearer
This is a request to IANA to please register the value "client- This is a request to IANA to please register the value
assertion-type:saml2-bearer" in the registry urn:ietf:params:oauth "client-assertion-type:saml2-bearer" in the registry
established in An IETF URN Sub-Namespace for OAuth [RFC6755]. urn:ietf:params:oauth established in An IETF URN Sub-Namespace for
OAuth [RFC6755].
o URN: urn:ietf:params:oauth:client-assertion-type:saml2-bearer o URN: urn:ietf:params:oauth:client-assertion-type:saml2-bearer
o Common Name: SAML 2.0 Bearer Assertion Profile for OAuth 2.0 o Common Name: SAML 2.0 Bearer Assertion Profile for OAuth 2.0
Client Authentication Client Authentication
o Change controller: IETF o Change controller: IETF
o Specification Document: [[this document]] o Specification Document: [[this document]]
8. References 8. References
8.1. Normative References 8.1. Normative References
[I-D.ietf-oauth-assertions] [I-D.ietf-oauth-assertions]
Campbell, B., Mortimore, C., Jones, M., and Y. Goland, Campbell, B., Mortimore, C., Jones, M., and Y. Goland,
"Assertion Framework for OAuth 2.0", draft-ietf-oauth- "Assertion Framework for OAuth 2.0 Client Authentication
assertions-10 (work in progress), January 2013. and Authorization Grants", draft-ietf-oauth-assertions
(work in progress), July 2013.
[OASIS.saml-core-2.0-os] [OASIS.saml-core-2.0-os]
Cantor, S., Kemp, J., Philpott, R., and E. Maler, Cantor, S., Kemp, J., Philpott, R., and E. Maler,
"Assertions and Protocol for the OASIS Security Assertion "Assertions and Protocol for the OASIS Security Assertion
Markup Language (SAML) V2.0", OASIS Standard saml- Markup Language (SAML) V2.0", OASIS Standard saml-core-
core-2.0-os, March 2005. 2.0-os, March 2005.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
Resource Identifier (URI): Generic Syntax", STD 66,
RFC 3986, January 2005.
[RFC4648] Josefsson, S., "The Base16, Base32, and Base64 Data [RFC4648] Josefsson, S., "The Base16, Base32, and Base64 Data
Encodings", RFC 4648, October 2006. Encodings", RFC 4648, October 2006.
[RFC6749] Hardt, D., "The OAuth 2.0 Authorization Framework", RFC [RFC6749] Hardt, D., "The OAuth 2.0 Authorization Framework",
6749, October 2012. RFC 6749, October 2012.
[RFC6755] Campbell, B. and H. Tschofenig, "An IETF URN Sub-Namespace [RFC6755] Campbell, B. and H. Tschofenig, "An IETF URN Sub-Namespace
for OAuth", RFC 6755, October 2012. for OAuth", RFC 6755, October 2012.
8.2. Informative References 8.2. Informative References
[OASIS.saml-deleg-cs] [OASIS.saml-deleg-cs]
Cantor, S., Ed., "SAML V2.0 Condition for Delegation Cantor, S., Ed., "SAML V2.0 Condition for Delegation
Restriction", Nov 2009. Restriction", Nov 2009.
[OASIS.saml-metadata-2.0-os] [OASIS.saml-metadata-2.0-os]
Cantor, S., Moreh, J., Philpott, R., and E. Maler, Cantor, S., Moreh, J., Philpott, R., and E. Maler,
"Metadata for the Security Assertion Markup Language "Metadata for the Security Assertion Markup Language
(SAML) V2.0", OASIS Standard saml-metadata-2.0-os, March (SAML) V2.0", OASIS Standard saml-metadata-2.0-os,
2005. March 2005.
[OASIS.saml-profiles-2.0-os] [OASIS.saml-profiles-2.0-os]
Hughes, J., Cantor, S., Hodges, J., Hirsch, F., Mishra, Hughes, J., Cantor, S., Hodges, J., Hirsch, F., Mishra,
P., Philpott, R., and E. Maler, "Profiles for the OASIS P., Philpott, R., and E. Maler, "Profiles for the OASIS
Security Assertion Markup Language (SAML) V2.0", OASIS Security Assertion Markup Language (SAML) V2.0", OASIS
Standard OASIS.saml-profiles-2.0-os, March 2005. Standard OASIS.saml-profiles-2.0-os, March 2005.
[OASIS.saml-sec-consider-2.0-os] [OASIS.saml-sec-consider-2.0-os]
Hirsch, F., Philpott, R., and E. Maler, "Security and Hirsch, F., Philpott, R., and E. Maler, "Security and
Privacy Considerations for the OASIS Security Markup Privacy Considerations for the OASIS Security Markup
Language (SAML) V2.0", OASIS Standard saml-sec- Language (SAML) V2.0", OASIS Standard saml-sec-consider-
consider-2.0-os, March 2005. 2.0-os, March 2005.
[W3C.REC-html401-19991224] [W3C.REC-html401-19991224]
Hors, A., Raggett, D., and I. Jacobs, "HTML 4.01 Hors, A., Raggett, D., and I. Jacobs, "HTML 4.01
Specification", World Wide Web Consortium Recommendation Specification", World Wide Web Consortium
REC-html401-19991224, December 1999, Recommendation REC-html401-19991224, December 1999,
<http://www.w3.org/TR/1999/REC-html401-19991224>. <http://www.w3.org/TR/1999/REC-html401-19991224>.
Appendix A. Acknowledgements Appendix A. Acknowledgements
The following people contributed wording and concepts to this The following people contributed wording and concepts to this
document: Paul Madsen, Patrick Harding, Peter Motykowski, Eran document: Paul Madsen, Patrick Harding, Peter Motykowski, Eran
Hammer, Peter Saint-Andre, Ian Barnett, Eric Fazendin, Torsten Hammer, Peter Saint-Andre, Ian Barnett, Eric Fazendin, Torsten
Lodderstedt, Susan Harper, Scott Tomilson, Scott Cantor, Hannes Lodderstedt, Susan Harper, Scott Tomilson, Scott Cantor, Hannes
Tschofenig, David Waite, Phil Hunt, and Mukesh Bhatnagar. Tschofenig, David Waite, Phil Hunt, and Mukesh Bhatnagar.
Appendix B. Document History Appendix B. Document History
[[ to be removed by RFC editor before publication as an RFC ]] [[ to be removed by RFC editor before publication as an RFC ]]
draft-ietf-oauth-saml2-bearer-17
o Stated that issuer and audience values SHOULD be compared using
the Simple String Comparison method defined in Section 6.2.1 of
RFC 3986 unless otherwise specified by the application.
draft-ietf-oauth-saml2-bearer-16 draft-ietf-oauth-saml2-bearer-16
o Changed title from "SAML 2.0 Bearer Assertion Profiles for OAuth o Changed title from "SAML 2.0 Bearer Assertion Profiles for OAuth
2.0" to "SAML 2.0 Profile for OAuth 2.0 Client Authentication and 2.0" to "SAML 2.0 Profile for OAuth 2.0 Client Authentication and
Authorization Grants" to be more explicit about the scope of the Authorization Grants" to be more explicit about the scope of the
document per http://www.ietf.org/mail-archive/web/oauth/current/ document per
msg11063.html. http://www.ietf.org/mail-archive/web/oauth/current/msg11063.html.
o Fixed typo in text identifying the presenter from "or similar o Fixed typo in text identifying the presenter from "or similar
element, the" to "or similar element in the". element, the" to "or similar element in the".
o Numbered the list of processing rules. o Numbered the list of processing rules.
o Smallish editorial cleanups to try and improve readability and o Smallish editorial cleanups to try and improve readability and
comprehensibility. comprehensibility.
o Cleaner split out of the processing rules in cases where they o Cleaner split out of the processing rules in cases where they
skipping to change at page 14, line 25 skipping to change at page 15, line 5
to SAML Metadata. to SAML Metadata.
o Added more explanatory context to the example in Section 4. o Added more explanatory context to the example in Section 4.
draft-ietf-oauth-saml2-bearer-15 draft-ietf-oauth-saml2-bearer-15
o Reference RFC 6749 and RFC 6755. o Reference RFC 6749 and RFC 6755.
o Update draft-ietf-oauth-assertions reference to -06. o Update draft-ietf-oauth-assertions reference to -06.
o Remove extraneous word per http://www.ietf.org/mail-archive/web/ o Remove extraneous word per
oauth/current/msg10055.html http://www.ietf.org/mail-archive/web/oauth/current/msg10055.html
draft-ietf-oauth-saml2-bearer-14 draft-ietf-oauth-saml2-bearer-14
o Add more text to intro explaining that an assertion grant type can o Add more text to intro explaining that an assertion grant type can
be used with or without client authentication/identification and be used with or without client authentication/identification and
that client assertion authentication is nothing more than an that client assertion authentication is nothing more than an
alternative way for a client to authenticate to the token endpoint alternative way for a client to authenticate to the token endpoint
o Add examples to Sections 2.1 and 2.2 o Add examples to Sections 2.1 and 2.2
skipping to change at page 15, line 5 skipping to change at page 15, line 34
o Changed "Description" to "Specification Document" in both o Changed "Description" to "Specification Document" in both
registration requests in IANA Considerations per changes to the registration requests in IANA Considerations per changes to the
template in ietf-oauth-urn-sub-ns(-03) template in ietf-oauth-urn-sub-ns(-03)
o Added "(or an acceptable alias)" so that it's in both sentences o Added "(or an acceptable alias)" so that it's in both sentences
about Recipient and the token endpoint URL so there's no ambiguity about Recipient and the token endpoint URL so there's no ambiguity
o Update area and workgroup (now Security and OAuth was Internet and o Update area and workgroup (now Security and OAuth was Internet and
nothing) nothing)
draft-ietf-oauth-saml2-bearer-12
o updated reference to draft-ietf-oauth-v2 from -25 to -26 and o updated reference to draft-ietf-oauth-v2 from -25 to -26 and
draft-ietf-oauth-assertions from -02 to -03 draft-ietf-oauth-assertions from -02 to -03
draft-ietf-oauth-saml2-bearer-11 draft-ietf-oauth-saml2-bearer-11
o Removed text about limited lifetime access tokens and the SHOULD o Removed text about limited lifetime access tokens and the SHOULD
NOT on issuing refresh tokens. The text was moved to draft-ietf- NOT on issuing refresh tokens. The text was moved to
oauth-assertions-02 and somewhat modified per http://www.ietf.org/ draft-ietf-oauth-assertions-02 and somewhat modified per
mail-archive/web/oauth/current/msg08298.html. http://www.ietf.org/mail-archive/web/oauth/current/msg08298.html.
o Fixed typo/missing word per http://www.ietf.org/mail-archive/web/ o Fixed typo/missing word per
oauth/current/msg08733.html. http://www.ietf.org/mail-archive/web/oauth/current/msg08733.html.
o Added Terminology section. o Added Terminology section.
draft-ietf-oauth-saml2-bearer-10 draft-ietf-oauth-saml2-bearer-10
o fix a spelling mistake o fix a spelling mistake
draft-ietf-oauth-saml2-bearer-09 draft-ietf-oauth-saml2-bearer-09
o Attempt to address an ambiguity around validation requirements o Attempt to address an ambiguity around validation requirements
when the Conditions element contain a NotOnOrAfter and when the Conditions element contain a NotOnOrAfter and
SubjectConfirmation/SubjectConfirmationData does too. Basically SubjectConfirmation/SubjectConfirmationData does too. Basically
it needs to have at least one bearer SubjectConfirmation element it needs to have at least one bearer SubjectConfirmation element
but that element can omit SubjectConfirmationData, if Conditions but that element can omit SubjectConfirmationData, if Conditions
has an expiry on it. Otherwise, a valid SubjectConfirmation must has an expiry on it. Otherwise, a valid SubjectConfirmation must
skipping to change at page 15, line 47 skipping to change at page 16, line 29
though it's implied by schema) though it's implied by schema)
o fix a typo o fix a typo
draft-ietf-oauth-saml2-bearer-08 draft-ietf-oauth-saml2-bearer-08
o fix some typos o fix some typos
draft-ietf-oauth-saml2-bearer-07 draft-ietf-oauth-saml2-bearer-07
o update reference from draft-campbell-oauth-urn-sub-ns to draft- o update reference from draft-campbell-oauth-urn-sub-ns to
ietf-oauth-urn-sub-ns draft-ietf-oauth-urn-sub-ns
o Updated to reference draft-ietf-oauth-v2-20 o Updated to reference draft-ietf-oauth-v2-20
draft-ietf-oauth-saml2-bearer-06
o Fix three typos NamseID->NameID and (2x) Namspace->Namespace o Fix three typos NamseID->NameID and (2x) Namspace->Namespace
draft-ietf-oauth-saml2-bearer-05 draft-ietf-oauth-saml2-bearer-05
o Allow for subject confirmation data to be optional when Conditions o Allow for subject confirmation data to be optional when Conditions
contain audience and NotOnOrAfter contain audience and NotOnOrAfter
o Rework most of the spec to profile draft-ietf-oauth-assertions for o Rework most of the spec to profile draft-ietf-oauth-assertions for
both authn and authz including (but not limited to): both authn and authz including (but not limited to):
* remove requirement for issuer to be urn:oasis:names:tc:SAML:2.0 * remove requirement for issuer to be
:nameid-format:entity urn:oasis:names:tc:SAML:2.0:nameid-format:entity
* change wording on Subject requirements * change wording on Subject requirements
o using a MAY, explicitly say that the Audience can be token o using a MAY, explicitly say that the Audience can be token
endpoint URL of the authorization server endpoint URL of the authorization server
o Change title to be more generic (allowing for client authn too) o Change title to be more generic (allowing for client authn too)
o added client authentication to the abstract o added client authentication to the abstract
o register and use urn:ietf:params:oauth:grant-type:saml2-bearer for o register and use urn:ietf:params:oauth:grant-type:saml2-bearer for
grant type rather than http://oauth.net/grant_type/saml/2.0/bearer grant type rather than http://oauth.net/grant_type/saml/2.0/bearer
o register urn:ietf:params:oauth:client-assertion-type:saml2-bearer o register urn:ietf:params:oauth:client-assertion-type:saml2-bearer
o remove scope parameter as it is defined in http://tools.ietf.org/ o remove scope parameter as it is defined in
html/draft-ietf-oauth-assertions http://tools.ietf.org/html/draft-ietf-oauth-assertions
o remove assertion param registration because it [should] be in o remove assertion param registration because it [should] be in
http://tools.ietf.org/html/draft-ietf-oauth-assertions http://tools.ietf.org/html/draft-ietf-oauth-assertions
o fix typo(s) and update/add references o fix typo(s) and update/add references
draft-ietf-oauth-saml2-bearer-04 draft-ietf-oauth-saml2-bearer-04
o Changed the grant_type URI from "http://oauth.net/grant_type/ o Changed the grant_type URI from
assertion/saml/2.0/bearer" to "http://oauth.net/grant_type/saml/ "http://oauth.net/grant_type/assertion/saml/2.0/bearer" to
2.0/bearer" - dropping the word assertion from the path. Recent "http://oauth.net/grant_type/saml/2.0/bearer" - dropping the word
versions of draft-ietf-oauth-v2 no longer refer to extension assertion from the path. Recent versions of draft-ietf-oauth-v2
grants using the word assertion so this URI is more reflective of no longer refer to extension grants using the word assertion so
that. It also more closely aligns with the grant type URI in this URI is more reflective of that. It also more closely aligns
draft-jones-oauth-jwt-bearer-00 which is "http://oauth.net/ with the grant type URI in draft-jones-oauth-jwt-bearer-00 which
grant_type/jwt/1.0/bearer". is "http://oauth.net/grant_type/jwt/1.0/bearer".
o Added "case sensitive" to scope definition to align with draft- o Added "case sensitive" to scope definition to align with
ietf-oauth-v2-15/16. draft-ietf-oauth-v2-15/16.
o Updated to reference draft-ietf-oauth-v2-16 o Updated to reference draft-ietf-oauth-v2-16
draft-ietf-oauth-saml2-bearer-03 draft-ietf-oauth-saml2-bearer-03
o Cleanup of some editorial issues. o Cleanup of some editorial issues.
draft-ietf-oauth-saml2-bearer-02 draft-ietf-oauth-saml2-bearer-02
o Added scope parameter with text copied from draft-ietf-oauth-v2-12 o Added scope parameter with text copied from draft-ietf-oauth-v2-12
(the reorg of draft-ietf-oauth-v2-12 made it so scope wasn't (the reorg of draft-ietf-oauth-v2-12 made it so scope wasn't
really inherited by this spec anymore) really inherited by this spec anymore)
o Change definition of the assertion parameter to be more generally o Change definition of the assertion parameter to be more generally
applicable per the suggestion near the end of http://www.ietf.org/ applicable per the suggestion near the end of
mail-archive/web/oauth/current/msg05253.html http://www.ietf.org/mail-archive/web/oauth/current/msg05253.html
o Editorial changes based on feedback o Editorial changes based on feedback
draft-ietf-oauth-saml2-bearer-01 draft-ietf-oauth-saml2-bearer-01
o Update spec name when referencing draft-ietf-oauth-v2 (The OAuth o Update spec name when referencing draft-ietf-oauth-v2 (The OAuth
2.0 Protocol Framework -> The OAuth 2.0 Authorization Protocol) 2.0 Protocol Framework -> The OAuth 2.0 Authorization Protocol)
o Update wording in Introduction to talk about extension grant types o Update wording in Introduction to talk about extension grant types
rather than the assertion grant type which is a term no longer rather than the assertion grant type which is a term no longer
skipping to change at page 18, line 35 skipping to change at page 19, line 18
o Added some wording about identifying the client when the subject o Added some wording about identifying the client when the subject
hasn't directly authenticated including an informative reference hasn't directly authenticated including an informative reference
to SAML V2.0 Condition for Delegation Restriction. to SAML V2.0 Condition for Delegation Restriction.
o Added a few examples to the language about verifying that the o Added a few examples to the language about verifying that the
Assertion is valid in all other respects. Assertion is valid in all other respects.
o Added some wording to the introduction about the similarities to o Added some wording to the introduction about the similarities to
Web SSO in the format and processing rules Web SSO in the format and processing rules
o Changed the grant_type (was assertion_type) URI from http:// o Changed the grant_type (was assertion_type) URI from
oauth.net/assertion_type/saml/2.0/bearer to http://oauth.net/ http://oauth.net/assertion_type/saml/2.0/bearer to
grant_type/assertion/saml/2.0/bearer http://oauth.net/grant_type/assertion/saml/2.0/bearer
o Changed title to include "Grant Type" in it. o Changed title to include "Grant Type" in it.
o Editorial updates based on feedback from the WG and others o Editorial updates based on feedback from the WG and others
(including capitalization of Assertion when referring to SAML). (including capitalization of Assertion when referring to SAML).
draft-campbell-oauth-saml-00 draft-campbell-oauth-saml-00
o Initial I-D o Initial I-D
Authors' Addresses Authors' Addresses
Brian Campbell Brian Campbell
Ping Identity Corp. Ping Identity
Email: brian.d.campbell@gmail.com Email: brian.d.campbell@gmail.com
Chuck Mortimore Chuck Mortimore
Salesforce.com Salesforce.com
Email: cmortimore@salesforce.com Email: cmortimore@salesforce.com
Michael B. Jones Michael B. Jones
Microsoft Microsoft
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