Re: [Acme] Barry Leiba's Discuss on draft-ietf-acme-email-smime-10: (with DISCUSS and COMMENT)

Alexey Melnikov <alexey.melnikov@isode.com> Thu, 12 November 2020 16:30 UTC

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From: Alexey Melnikov <alexey.melnikov@isode.com>
To: Barry Leiba <barryleiba@computer.org>
Cc: The IESG <iesg@ietf.org>, "Salz, Rich" <rsalz@akamai.com>, acme@ietf.org, acme-chairs@ietf.org
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Subject: Re: [Acme] Barry Leiba's Discuss on draft-ietf-acme-email-smime-10: (with DISCUSS and COMMENT)
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Hi Barry,

On 05/11/2020 11:03, Alexey Melnikov wrote:
> Hi Barry,
>
> On 29/10/2020 21:33, Barry Leiba wrote: 
   [snip]
>>>> The example body contains a “.”, which is not a valid base64url 
>>>> character.
>>> It is JWS, which contains a dot.
>> I'm confused, then.  The text says that it's "one or more line
>> containing the base64url-encoded SHA-256 digest [FIPS180-4] of the key
>> authorization".
>>
>> How can that contain a dot?  The key authorization might, but then you
>> make a digest of it and encode the digest, and that encoded blob can't
>> contain a dot, right?  What am I missing (just hit me over the head;
>> it's OK).
> I will come back to you on this.

Yes, you are right and I am wrong. I will fix.

Best Regards,

Alexey