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Re: [OAUTH-WG] Message ID for draft-jones-oauth-jwt-bearer

Mike Jones <Michael.Jones@microsoft.com> Thu, 24 November 2011 01:27 UTC

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From: Mike Jones <Michael.Jones@microsoft.com>
To: John Bradley <ve7jtb@ve7jtb.com>, oauth WG <oauth@ietf.org>
Thread-Topic: Message ID for draft-jones-oauth-jwt-bearer
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Date: Thu, 24 Nov 2011 01:27:47 +0000
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Subject: Re: [OAUTH-WG] Message ID for draft-jones-oauth-jwt-bearer
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Thinking about it a bit more, since others may want to use "tid" for claims with meanings like Transaction ID ( or other words beginning with "t"), maybe the claim name should be "jti" (JSON web Token ID) to reduce chance of name collisions?

                                                            -- Mike

From: oauth-bounces@ietf.org [mailto:oauth-bounces@ietf.org] On Behalf Of Mike Jones
Sent: Wednesday, November 23, 2011 5:21 PM
To: John Bradley; oauth WG
Subject: Re: [OAUTH-WG] Message ID for draft-jones-oauth-jwt-bearer

Thanks John.  This makes sense to me.

Feedback from others?

                                                            -- Mike

From: John Bradley [mailto:ve7jtb@ve7jtb.com]<mailto:[mailto:ve7jtb@ve7jtb.com]>
Sent: Wednesday, November 23, 2011 5:02 PM
To: oauth WG
Cc: Mike Jones
Subject: Message ID for draft-jones-oauth-jwt-bearer

The draft-jones-oauth-jwt-bearer<http://tools.ietf.org/html/draft-jones-oauth-jwt-bearer-02> profile is lacking a message ID that exists in the SAML version.

This is important for the receiver to detect replay attacks.

For Connect I made up a claim to use:

tid  The tid (token id) claim, A nonce or unique identifier for the assertion. The Assertion ID may be used by implementations requiring message de- duplication for one-time use assertions.

I was tempted to use mid (Message ID) however it is the id of the token not the message.

If you add something I will change the claim to be consistent.

I think it needs to be in your spec.

Regards
John B.

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