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Re: [Rats] Android comments on EAT draft

Laurence Lundblade <lgl@island-resort.com> Fri, 17 May 2019 23:57 UTC

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From: Laurence Lundblade <lgl@island-resort.com>
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Date: Fri, 17 May 2019 16:57:07 -0700
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Cc: Simon Frost <Simon.Frost@arm.com>, Shawn Willden <swillden=40google.com@dmarc.ietf.org>, "rats@ietf.org" <rats@ietf.org>
To: Mathias Brossard <Mathias.Brossard@arm.com>
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Subject: Re: [Rats] Android comments on EAT draft
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> On May 16, 2019, at 9:31 AM, Mathias Brossard <Mathias.Brossard@arm.com> wrote:
> 
> But even for the relatively simple use-case of putting a public key in a token, which it technically supports, I am worried that the semantics might be too constraining. It focuses on proof-of-possession (PoP), where we are thinking about additional functions (signature, encryption, key agreement, etc.).


Mathias, can you say more about the additional functions you are thinking about? 

Would they change the protocol flow in a big way? Mostly what we are thinking is that the RP sends a nonce to the device and the device returns a token. 

LL

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