Re: [Gen-art] [Acme] Genart last call review of draft-ietf-acme-acme-11

Sophie Herold <sophie_herold@hemio.de> Tue, 24 April 2018 15:55 UTC

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To: Richard Barnes <rlb@ipv.sx>, Dale Worley <worley@ariadne.com>
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From: Sophie Herold <sophie_herold@hemio.de>
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Date: Tue, 24 Apr 2018 17:55:47 +0200
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Subject: Re: [Gen-art] [Acme] Genart last call review of draft-ietf-acme-acme-11
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Hi,

On 24/04/18 17:30, Richard Barnes wrote:
>> 8.3.  HTTP Challenge
>>
>>    On receiving a response, the server constructs and stores the key
>>    authorization from the challenge "token" value and the current client
>>    account key.
>>
>> I'm not sure this storage step is necessary, or even visible in the
>> protocol operation.  (E.g., the server can calculate the key
>> authorization at any time that it needs to know the value.)  So you
>> might want to remove this sentence.
>>
> There's no harm in storing it; servers can make their own decisions.

Storing the key authorization avoids interference between a pending
authorization and an account key roll-over.

Best,
Sophie