[OAUTH-WG] Alissa Cooper's Discuss on draft-ietf-oauth-token-exchange-16: (with DISCUSS and COMMENT)

Alissa Cooper <alissa@cooperw.in> Tue, 20 November 2018 19:50 UTC

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From: Alissa Cooper <alissa@cooperw.in>
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Date: Tue, 20 Nov 2018 11:50:43 -0800
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Subject: [OAUTH-WG] Alissa Cooper's Discuss on draft-ietf-oauth-token-exchange-16: (with DISCUSS and COMMENT)
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Alissa Cooper has entered the following ballot position for
draft-ietf-oauth-token-exchange-16: Discuss

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DISCUSS:
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Section 6: The requirements around confidentiality here are weaker than in both
RFC 7519 Sec. 12 and RFC 6749 Sec. 10.8. Why?


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COMMENT:
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Section 3:

If I understand this correctly:

"The distinction between an access token and a JWT is subtle."

I think it would be clearer if it said:

"The distinction between an access token type and a JWT token type is subtle."

Section 4.1:

What is the value of maintaining the whole delegation chain rather than
expressing just the most recent delegation? Doesn't it potentially expose
information about past exchanges unnecessarily?