[Openid-specs-ab] Call for Adoption for the OpenID Connect Key Binding Specification
Brian Campbell
bcampbell at pingidentity.com
Mon Sep 29 18:16:17 UTC 2025
Based on the content of this thread and related discussions, it appears
that several capable and well-versed individuals in OAuth/OIDC interpreted
the intent of the draft similarly to Aaron. As such, I'd characterize his
characterization of the language in the draft as perfectly reasonable.
On Mon, Sep 29, 2025 at 9:27 AM Dick Hardt via Openid-specs-ab <
openid-specs-ab at lists.openid.net> wrote:
> I agree that language could be better -- but I don't think it is
> misleading -- and your characterization of the language is misleading.
>
> On Mon, Sep 29, 2025 at 4:14 PM Aaron Parecki <aaron at parecki.com> wrote:
>
>> Great. Like I said in my first email, I'm not comfortable with even a
>> first draft of an adopted OpenID document containing the current language,
>> so would like to see this revised before adoption.
>>
>>
>> On Mon, Sep 29, 2025 at 7:58 AM Dick Hardt <dick.hardt at gmail.com> wrote:
>>
>>> That is the intent, and we plan to improve the language.
>>>
>>> On Mon, Sep 29, 2025 at 3:31 PM Aaron Parecki <aaron at parecki.com> wrote:
>>>
>>>> If that is your intent, the language in the draft should be updated to
>>>> make that explicit. I pointed out all the places in the text that could
>>>> lead to a misinterpretation of your intent. These are the sections that
>>>> will likely cause people to use ID tokens to access resources and justify
>>>> it based on the text provided.
>>>>
>>>>
>>>> On Mon, Sep 29, 2025 at 7:27 AM Dick Hardt <dick.hardt at gmail.com>
>>>> wrote:
>>>>
>>>>> A bearer token does not imply accessing a resource.
>>>>>
>>>>> We are using the term "bearer token" to contrast it with the security
>>>>> features of key binding.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Sep 29, 2025 at 2:14 PM Aaron Parecki <aaron at parecki.com>
>>>>> wrote:
>>>>>
>>>>>> | "The draft does not suggest using the ID Token as a bearer token."
>>>>>>
>>>>>> Here are the instances where it does. In the intro:
>>>>>>
>>>>>> > When an RP wants to prove to another system that it has
>>>>>> authenticated a user, it may present the ID Token as a bearer token.
>>>>>>
>>>>>> and
>>>>>>
>>>>>> > This transforms the ID Token from a vulnerable bearer token into a
>>>>>> proof-of-possession token that provides stronger security guarantees.
>>>>>>
>>>>>> In the Security Considerations:
>>>>>>
>>>>>> > Public key bound ID Tokens provide a higher level security than
>>>>>> bearer ID Tokens by using proof of possession rather than bearer
>>>>>> authentication.
>>>>>>
>>>>>> and
>>>>>>
>>>>>> > If bearer token authentication is desired, bearer ID Tokens should
>>>>>> be used instead.
>>>>>>
>>>>>> | "The draft does not suggest using ID Tokens across domains."
>>>>>>
>>>>>> The term "domain" doesn't appear in the draft, but the language
>>>>>> "another system" could easily be interpreted as across domains, since it is
>>>>>> not actually defined in the draft as a same-domain system.
>>>>>>
>>>>>> On Mon, Sep 29, 2025 at 4:28 AM Dick Hardt via Openid-specs-ab <
>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>
>>>>>>> Aaron, thanks for your feedback. I want to make sure we’re aligned
>>>>>>> on what the draft actually says.
>>>>>>>
>>>>>>> You mention not supporting adoption because:
>>>>>>>
>>>>>>> > The problematic language is the non-normative suggestion of using
>>>>>>> an ID token as a bearer token to access resources at other domains. We
>>>>>>> should not be encouraging this behavior even if it exists in the wild.
>>>>>>>
>>>>>>> > I do not believe the draft should be adopted as is, because of the
>>>>>>> language suggesting it is okay to use ID tokens directly across domains.
>>>>>>>
>>>>>>> To clarify:
>>>>>>>
>>>>>>>
>>>>>>> -
>>>>>>>
>>>>>>> Neither the word *resource* nor *domain* appears in the draft.
>>>>>>> -
>>>>>>>
>>>>>>> The draft does *not* suggest using the ID Token as a bearer
>>>>>>> token.
>>>>>>> -
>>>>>>>
>>>>>>> The draft does *not* suggest using ID Tokens across domains.
>>>>>>>
>>>>>>> If there is specific text that suggests otherwise, please point it
>>>>>>> out so we can correct it.
>>>>>>>
>>>>>>> We will add additional non-normative text that instructs readers to
>>>>>>> not use the ID Token for access, as well as to not use the same keys for
>>>>>>> signing other objects.
>>>>>>>
>>>>>>> It sounds like you agree with Karl (co-author of *Identity
>>>>>>> Assertion Authorization Grant*) that normative language around key
>>>>>>> binding is useful. I hope with the clarifications above—and with the
>>>>>>> additional non-normative guidance—we address your concerns about adoption.
>>>>>>>
>>>>>>> /Dick
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Sep 26, 2025 at 11:33 PM Aaron Parecki via Openid-specs-ab <
>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>
>>>>>>>> I do not support adoption of the draft as it currently stands, for
>>>>>>>> similar reasons to the previous replies on this topic.
>>>>>>>>
>>>>>>>>
>>>>>>>> The problematic language is the non-normative suggestion of using
>>>>>>>> an ID token as a bearer token to access resources at other domains. We
>>>>>>>> should not be encouraging this behavior even if it exists in the wild.
>>>>>>>>
>>>>>>>>
>>>>>>>> However, I do have a use for binding a DPoP key to an ID Token. One
>>>>>>>> application of the OAuth draft "Identity and Authorization Chaining Across
>>>>>>>> Domains"
>>>>>>>> https://datatracker.ietf.org/doc/draft-ietf-oauth-identity-chaining/ involves
>>>>>>>> exchanging an initial token from the domain that issued it (using RFC8693
>>>>>>>> Token Exchange) for a token that moves across domains and is later
>>>>>>>> exchanged for an access token using RFC7523. This is further profiled by
>>>>>>>> the draft "Identity Assertion Authorization Grant"
>>>>>>>> https://datatracker.ietf.org/doc/draft-parecki-oauth-identity-assertion-authz-grant/ (currently
>>>>>>>> in the middle of the working group adoption call), which specifies that the
>>>>>>>> initial token is an identity assertion such as an ID token.
>>>>>>>>
>>>>>>>>
>>>>>>>> In this flow, the OpenID Provider issues an ID token to a client.
>>>>>>>> The client uses Token Exchange to exchange the ID token back at the OpenID
>>>>>>>> Provider for a new JWT. It takes the new JWT to an authorization server in
>>>>>>>> a different trust domain exchanging it for an OAuth access token.
>>>>>>>>
>>>>>>>>
>>>>>>>> It would be valuable to be able to bind the ID token to the client
>>>>>>>> using DPoP, which is possible using the method described in this OpenID
>>>>>>>> draft. This use of the ID token doesn't have the problematic attribute of
>>>>>>>> being used directly in another domain.
>>>>>>>>
>>>>>>>>
>>>>>>>> I believe the sorts of cross-domain uses of ID tokens mentioned in
>>>>>>>> the draft would likely be better accomplished using "Identity and
>>>>>>>> Authorization Chaining Across Domains", which properly scopes the tokens to
>>>>>>>> each trust domain.
>>>>>>>>
>>>>>>>>
>>>>>>>> All this said, I do not believe the draft should be adopted as is,
>>>>>>>> because of the language suggesting it is okay to use ID tokens directly
>>>>>>>> across domains. I would not want an OIDF draft to endorse this behavior.
>>>>>>>>
>>>>>>>> Aaron Parecki
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Sep 26, 2025 at 1:37 PM Ralph Bragg via Openid-specs-ab <
>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>
>>>>>>>>> *This message originated outside your organization.*
>>>>>>>>>
>>>>>>>>> ------------------------------
>>>>>>>>>
>>>>>>>>> Likewise, I do not support utilisation the id token In this way
>>>>>>>>> for the reasons already raised. We’ve just had issues with multiple aud
>>>>>>>>> values being identified as a significant source of vulnerability with PKJ
>>>>>>>>> so extending / modifying an id tokens aud raises too many concerns for me
>>>>>>>>> as a potential mitigation. I don’t believe that this token should be relied
>>>>>>>>> on by any actor other than the intended audience.
>>>>>>>>>
>>>>>>>>> Ralph Bragg
>>>>>>>>>
>>>>>>>>> Chief Technology Officer
>>>>>>>>>
>>>>>>>>> M.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +447890130559
>>>>>>>>>
>>>>>>>>> T.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +44 20 4583 6770
>>>>>>>>>
>>>>>>>>> ralph.bragg at raidiam.com
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ------------------------------
>>>>>>>>> *From:* Openid-specs-ab <openid-specs-ab-bounces at lists.openid.net>
>>>>>>>>> on behalf of Andrii Deinega via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net>
>>>>>>>>> *Sent:* Saturday, September 27, 2025 4:26:07 AM
>>>>>>>>> *To:* Artifact Binding/Connect Working Group <
>>>>>>>>> openid-specs-ab at lists.openid.net>
>>>>>>>>> *Cc:* Andrii Deinega <andrii.deinega at gmail.com>
>>>>>>>>> *Subject:* Re: [Openid-specs-ab] Call for Adoption for the OpenID
>>>>>>>>> Connect Key Binding Specification
>>>>>>>>>
>>>>>>>>> I believe that any recipient of a JWT (in this case, an ID Token)
>>>>>>>>> should immediately reject it if it isn't the intended audience (which is
>>>>>>>>> indicated by the aud claim), regardless of whether cryptographic binding is
>>>>>>>>> present or not. This alone makes the statement below too problematic for me.
>>>>>>>>>
>>>>>>>>> When an RP wants to prove to another system that it has
>>>>>>>>> authenticated a user, it may present the ID Token as a bearer token.
>>>>>>>>> However, bearer tokens are vulnerable to theft and replay attacks - if an
>>>>>>>>> attacker intercepts the ID Token, they can impersonate the authenticated
>>>>>>>>> user to downstream systems that accept a ID Token as a bearer token.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> It's difficult to imagine multiple systems (recipients) sharing
>>>>>>>>> the same value in the aud claim (this value must be a client_id of the RP
>>>>>>>>> per the Core spec). It's fair to add the aud claim may contain an array
>>>>>>>>> with more than one element, but it's also fair to say this practice is
>>>>>>>>> discouraged (1) and comes with additional complexity and concerns (2).
>>>>>>>>>
>>>>>>>>> At the end of the day... I see a lot of value, and I see the
>>>>>>>>> reason why people want to have the standard around "proving to another
>>>>>>>>> system that it has authenticated a user," but I don't think that
>>>>>>>>> repurposing existing ID Tokens for it is the right way to go.... I’d
>>>>>>>>> suggest, and actually love to see - the use of SD JWT VCs (or other VCs)
>>>>>>>>> for this purpose instead.
>>>>>>>>>
>>>>>>>>> I haven’t reached the point where I need to "touch" Justin’s
>>>>>>>>> concerns... I fully agree with him on them.
>>>>>>>>>
>>>>>>>>> All the best,
>>>>>>>>> Andrii
>>>>>>>>>
>>>>>>>>> On Fri, Sep 26, 2025 at 9:05 AM Justin Richer via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>>
>>>>>>>>> I do not support adoption of this work. The ID Token is not
>>>>>>>>> intended to be a conveyable artifact, and using it as such is a security
>>>>>>>>> layer boundary. It’s hard enough to get people to not use ID Tokens as
>>>>>>>>> Access Tokens today, since a lot of developers see all JWTs as equivalent,
>>>>>>>>> really. This work would make this problem significantly worse.
>>>>>>>>>
>>>>>>>>> — Justin
>>>>>>>>>
>>>>>>>>> On Sep 15, 2025, at 6:57 PM, Michael Jones via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>>
>>>>>>>>> This starts a two-week call for feedback on whether to adopt the
>>>>>>>>> OpenID Connect OpenID Connect Key Binding specification contributed to the
>>>>>>>>> working group by Dick Hardt and Ethan Heilman as an OpenID Connect Working
>>>>>>>>> Group specification. Please reply-all by Monday, September 29, 2025 saying
>>>>>>>>> whether you are favor of adoption or not, also saying why.
>>>>>>>>>
>>>>>>>>> The specification was contributed at
>>>>>>>>> https://lists.openid.net/pipermail/openid-specs-ab/2025-August/010890.html
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/pipermail/openid-specs-ab/2025-August/010890.html__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ8YWyonU$>.
>>>>>>>>> It has been extensively discussed by the working group both on calls and on
>>>>>>>>> the mailing list. From my observations of the discussion as a working
>>>>>>>>> group chair, I believe that there is consensus that it would be useful to
>>>>>>>>> have a standard solving the problem addressed by this specification.
>>>>>>>>>
>>>>>>>>> Writing as a
>>>>>>>>> working group chair,
>>>>>>>>> --
>>>>>>>>> Mike
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/mailman/listinfo/openid-specs-ab__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ2Sra7o3$>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/mailman/listinfo/openid-specs-ab__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ2Sra7o3$>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Openid-specs-ab mailing list
>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Fri, Sep 26, 2025 at 11:33 PM Aaron Parecki via Openid-specs-ab <
>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>
>>>>>>>> I do not support adoption of the draft as it currently stands, for
>>>>>>>> similar reasons to the previous replies on this topic.
>>>>>>>>
>>>>>>>>
>>>>>>>> The problematic language is the non-normative suggestion of using
>>>>>>>> an ID token as a bearer token to access resources at other domains. We
>>>>>>>> should not be encouraging this behavior even if it exists in the wild.
>>>>>>>>
>>>>>>>>
>>>>>>>> However, I do have a use for binding a DPoP key to an ID Token. One
>>>>>>>> application of the OAuth draft "Identity and Authorization Chaining Across
>>>>>>>> Domains"
>>>>>>>> https://datatracker.ietf.org/doc/draft-ietf-oauth-identity-chaining/
>>>>>>>> involves exchanging an initial token from the domain that issued it (using
>>>>>>>> RFC8693 Token Exchange) for a token that moves across domains and is later
>>>>>>>> exchanged for an access token using RFC7523. This is further profiled by
>>>>>>>> the draft "Identity Assertion Authorization Grant"
>>>>>>>> https://datatracker.ietf.org/doc/draft-parecki-oauth-identity-assertion-authz-grant/
>>>>>>>> (currently in the middle of the working group adoption call), which
>>>>>>>> specifies that the initial token is an identity assertion such as an ID
>>>>>>>> token.
>>>>>>>>
>>>>>>>>
>>>>>>>> In this flow, the OpenID Provider issues an ID token to a client.
>>>>>>>> The client uses Token Exchange to exchange the ID token back at the OpenID
>>>>>>>> Provider for a new JWT. It takes the new JWT to an authorization server in
>>>>>>>> a different trust domain exchanging it for an OAuth access token.
>>>>>>>>
>>>>>>>>
>>>>>>>> It would be valuable to be able to bind the ID token to the client
>>>>>>>> using DPoP, which is possible using the method described in this OpenID
>>>>>>>> draft. This use of the ID token doesn't have the problematic attribute of
>>>>>>>> being used directly in another domain.
>>>>>>>>
>>>>>>>>
>>>>>>>> I believe the sorts of cross-domain uses of ID tokens mentioned in
>>>>>>>> the draft would likely be better accomplished using "Identity and
>>>>>>>> Authorization Chaining Across Domains", which properly scopes the tokens to
>>>>>>>> each trust domain.
>>>>>>>>
>>>>>>>>
>>>>>>>> All this said, I do not believe the draft should be adopted as is,
>>>>>>>> because of the language suggesting it is okay to use ID tokens directly
>>>>>>>> across domains. I would not want an OIDF draft to endorse this
>>>>>>>> behavior.
>>>>>>>>
>>>>>>>> Aaron Parecki
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Sep 26, 2025 at 1:37 PM Ralph Bragg via Openid-specs-ab <
>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>
>>>>>>>>> *This message originated outside your organization.*
>>>>>>>>>
>>>>>>>>> ------------------------------
>>>>>>>>>
>>>>>>>>> Likewise, I do not support utilisation the id token In this way
>>>>>>>>> for the reasons already raised. We’ve just had issues with multiple aud
>>>>>>>>> values being identified as a significant source of vulnerability with PKJ
>>>>>>>>> so extending / modifying an id tokens aud raises too many concerns for me
>>>>>>>>> as a potential mitigation. I don’t believe that this token should be relied
>>>>>>>>> on by any actor other than the intended audience.
>>>>>>>>>
>>>>>>>>> Ralph Bragg
>>>>>>>>>
>>>>>>>>> Chief Technology Officer
>>>>>>>>>
>>>>>>>>> M.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +447890130559
>>>>>>>>>
>>>>>>>>> T.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +44 20 4583 6770
>>>>>>>>>
>>>>>>>>> ralph.bragg at raidiam.com
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ------------------------------
>>>>>>>>> *From:* Openid-specs-ab <openid-specs-ab-bounces at lists.openid.net>
>>>>>>>>> on behalf of Andrii Deinega via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net>
>>>>>>>>> *Sent:* Saturday, September 27, 2025 4:26:07 AM
>>>>>>>>> *To:* Artifact Binding/Connect Working Group <
>>>>>>>>> openid-specs-ab at lists.openid.net>
>>>>>>>>> *Cc:* Andrii Deinega <andrii.deinega at gmail.com>
>>>>>>>>> *Subject:* Re: [Openid-specs-ab] Call for Adoption for the OpenID
>>>>>>>>> Connect Key Binding Specification
>>>>>>>>>
>>>>>>>>> I believe that any recipient of a JWT (in this case, an ID Token)
>>>>>>>>> should immediately reject it if it isn't the intended audience (which is
>>>>>>>>> indicated by the aud claim), regardless of whether cryptographic binding is
>>>>>>>>> present or not. This alone makes the statement below too problematic for me.
>>>>>>>>>
>>>>>>>>> When an RP wants to prove to another system that it has
>>>>>>>>> authenticated a user, it may present the ID Token as a bearer token.
>>>>>>>>> However, bearer tokens are vulnerable to theft and replay attacks - if an
>>>>>>>>> attacker intercepts the ID Token, they can impersonate the authenticated
>>>>>>>>> user to downstream systems that accept a ID Token as a bearer token.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> It's difficult to imagine multiple systems (recipients) sharing
>>>>>>>>> the same value in the aud claim (this value must be a client_id of the RP
>>>>>>>>> per the Core spec). It's fair to add the aud claim may contain an array
>>>>>>>>> with more than one element, but it's also fair to say this practice is
>>>>>>>>> discouraged (1) and comes with additional complexity and concerns (2).
>>>>>>>>>
>>>>>>>>> At the end of the day... I see a lot of value, and I see the
>>>>>>>>> reason why people want to have the standard around "proving to another
>>>>>>>>> system that it has authenticated a user," but I don't think that
>>>>>>>>> repurposing existing ID Tokens for it is the right way to go.... I’d
>>>>>>>>> suggest, and actually love to see - the use of SD JWT VCs (or other VCs)
>>>>>>>>> for this purpose instead.
>>>>>>>>>
>>>>>>>>> I haven’t reached the point where I need to "touch" Justin’s
>>>>>>>>> concerns... I fully agree with him on them.
>>>>>>>>>
>>>>>>>>> All the best,
>>>>>>>>> Andrii
>>>>>>>>>
>>>>>>>>> On Fri, Sep 26, 2025 at 9:05 AM Justin Richer via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>>
>>>>>>>>> I do not support adoption of this work. The ID Token is not
>>>>>>>>> intended to be a conveyable artifact, and using it as such is a security
>>>>>>>>> layer boundary. It’s hard enough to get people to not use ID Tokens as
>>>>>>>>> Access Tokens today, since a lot of developers see all JWTs as equivalent,
>>>>>>>>> really. This work would make this problem significantly worse.
>>>>>>>>>
>>>>>>>>> — Justin
>>>>>>>>>
>>>>>>>>> On Sep 15, 2025, at 6:57 PM, Michael Jones via Openid-specs-ab <
>>>>>>>>> openid-specs-ab at lists.openid.net> wrote:
>>>>>>>>>
>>>>>>>>> This starts a two-week call for feedback on whether to adopt the
>>>>>>>>> OpenID Connect OpenID Connect Key Binding specification contributed to the
>>>>>>>>> working group by Dick Hardt and Ethan Heilman as an OpenID Connect Working
>>>>>>>>> Group specification. Please reply-all by Monday, September 29, 2025 saying
>>>>>>>>> whether you are favor of adoption or not, also saying why.
>>>>>>>>>
>>>>>>>>> The specification was contributed at
>>>>>>>>> https://lists.openid.net/pipermail/openid-specs-ab/2025-August/010890.html
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/pipermail/openid-specs-ab/2025-August/010890.html__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ8YWyonU$>.
>>>>>>>>> It has been extensively discussed by the working group both on calls and on
>>>>>>>>> the mailing list. From my observations of the discussion as a working
>>>>>>>>> group chair, I believe that there is consensus that it would be useful to
>>>>>>>>> have a standard solving the problem addressed by this specification.
>>>>>>>>>
>>>>>>>>> Writing as a
>>>>>>>>> working group chair,
>>>>>>>>> --
>>>>>>>>> Mike
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/mailman/listinfo/openid-specs-ab__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ2Sra7o3$>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>> <https://urldefense.com/v3/__https://lists.openid.net/mailman/listinfo/openid-specs-ab__;!!PwKahg!6QnHIKzhjBzjwwVrJqFfHF90LftISX-Hsr1obR0wAaEN3vBfUK_FDeluuf1qi3PARLAeMVkMdeDKDke1X_e_ZGJaQ2Sra7o3$>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> Openid-specs-ab mailing list
>>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Openid-specs-ab mailing list
>>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Openid-specs-ab mailing list
>>>>>>> Openid-specs-ab at lists.openid.net
>>>>>>> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>>>>>>>
>>>>>> _______________________________________________
> Openid-specs-ab mailing list
> Openid-specs-ab at lists.openid.net
> https://lists.openid.net/mailman/listinfo/openid-specs-ab
>
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