Hello Q,

Thanks for your reply and the updated version, which addresses all my 
non-blocking COMMENT.

It seems that I was not clear in my DISCUSS point though, sorry about that.

The DISCUSS is based on the text below that I find ambiguous whether 
“onion-csr-01” challenge can be used also for non “.onion” FQDN, and by ‘can be 
used’ I do not only mean technically but also whether the ACME WG has agreed on 
this extended non .onion use and whether it fits the ACME charter. All in all, 
adding a sentence like “This “onion-csr-01” challenge MAY (or MUST NOT) be used 
for non “.onion” Special-Use Domain Names.” Will clear the ambiguity and I will 
clear my DISCUSS ballot.

```
Two methods already defined in ACME and allowed by the CA/BF ("http-01" and 
"tls-alpn-01") do not allow issuance of wildcard certificates. A ".onion" 
Special-Use Domain Name can have subdomains (just like any other domain in the 
DNS), and a site operator may find it useful to have one certificate for all 
virtual hosts on their site.
```

Regards

-éric

From: Q Misell <q=40as207960....@dmarc.ietf.org>
Date: Monday, 13 January 2025 at 10:57
To: Eric Vyncke (evyncke) <evyn...@cisco.com>
Cc: Tomofumi Okubo <tomofumi.ok...@gmail.com>, The IESG <i...@ietf.org>, 
draft-ietf-acme-on...@ietf.org <draft-ietf-acme-on...@ietf.org>, 
acme-cha...@ietf.org <acme-cha...@ietf.org>, acme@ietf.org <acme@ietf.org>, 
tomofumi.okubo+i...@gmail.com <tomofumi.okubo+i...@gmail.com>
Subject: Re: Éric Vyncke's Discuss on draft-ietf-acme-onion-05: (with DISCUSS 
and COMMENT)

Hi Eric,

> May the onion-csr-01 challenge be used over the plain global Internet? As it 
> allows for wildcard certificates and plain ACME does not, it would seem 
> necessary to specify whether it is supported or forbidden.

I do not quite follow what you mean here. This document defines extensions to 
ACME, and ACME may be carried over the plain Internet or over Tor. 
"onion-csr-01" only makes sense in the context of requesting certificates for 
.onion domains, however the medium over which these are requests are made is of 
no concern to ACME.

> s/These use the ".onion"/These services use the ".onion"/ (I had to re-read 
> the whole sentence 3 times to understand it)

Will incorporate.

> As 3.1.1 uses 'MUST NOT', suggest to s/can be used/MAY be used/

Agreed, will incorporate.

> What is the basis for selecting 30 days? I would assume that the ACME 
> challenge/response is done within minutes if not seconds. Or is this 
> challenge/response assumed to be executed multiple times?

This is copied from the CA/BF BRs, I will add a reference to them. It may be 
that some manual work is involved in accessing an offline identity key on a HSM 
or some air-gapped machine, hence the long time.

> Only supporting Ed25519 seems to lack agility or am I missing something?

Tor only supports Ed25519.

> It is also unclear to me whether authKey is the client public key (probably) 
> or the server public key. Please add clarifying text.

Will do.

> Is authKey the same field as in section 3.2?

I will add a cross reference between section 3.2 and section 4.

> To avoid any ambiguity, please add a reference to the registry by its URI

Will do.

Q
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Ar Iau, 9 Ion 2025 am 12:58 Eric Vyncke (evyncke) 
<evyn...@cisco.com<mailto:evyn...@cisco.com>> ysgrifennodd:
Hello Tomofumi,

Thanks for your reply and for the shepherd’s write-up update: it makes sense 
indeed to set the intended status to PS.

Regards

-éric

From: Tomofumi Okubo <tomofumi.ok...@gmail.com<mailto:tomofumi.ok...@gmail.com>>
Date: Wednesday, 8 January 2025 at 20:01
To: Eric Vyncke (evyncke) <evyn...@cisco.com<mailto:evyn...@cisco.com>>
Cc: The IESG <i...@ietf.org<mailto:i...@ietf.org>>, 
draft-ietf-acme-on...@ietf.org<mailto:draft-ietf-acme-on...@ietf.org> 
<draft-ietf-acme-on...@ietf.org<mailto:draft-ietf-acme-on...@ietf.org>>, 
acme-cha...@ietf.org<mailto:acme-cha...@ietf.org> 
<acme-cha...@ietf.org<mailto:acme-cha...@ietf.org>>, 
acme@ietf.org<mailto:acme@ietf.org> <acme@ietf.org<mailto:acme@ietf.org>>, 
tomofumi.okubo+i...@gmail.com<mailto:tomofumi.okubo%2bi...@gmail.com> 
<tomofumi.okubo+i...@gmail.com<mailto:tomofumi.okubo%2bi...@gmail.com>>
Subject: Re: Éric Vyncke's Discuss on draft-ietf-acme-onion-05: (with DISCUSS 
and COMMENT)
Hello Éric,

My apologies for the delayed response.
Thank you very much for the review and comments.

Onion is an extension to RFC8555 which is standards track and already has some 
implementations as well. Therefore, I do believe that the proposed standard 
would be the suitable status for this draft. I have also updated the shepherd's 
write-up accordingly.

Thanks again!
Tomofumi

On Thu, Jan 2, 2025 at 8:33 PM Éric Vyncke via Datatracker 
<nore...@ietf.org<mailto:nore...@ietf.org>> wrote:
Éric Vyncke has entered the following ballot position for
draft-ietf-acme-onion-05: Discuss

When responding, please keep the subject line intact and reply to all
email addresses included in the To and CC lines. (Feel free to cut this
introductory paragraph, however.)


Please refer to 
https://www.ietf.org/about/groups/iesg/statements/handling-ballot-positions/
for more information about how to handle DISCUSS and COMMENT positions.


The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/draft-ietf-acme-onion/



----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------


# Éric Vyncke, INT AD, comments for draft-ietf-acme-onion-05
CC @evyncke

Thank you for the work put into this document.

Please find below one blocking DISCUSS points (easy to address, i.e., I simply
want to check this point), some non-blocking COMMENT points (but replies would
be appreciated even if only for my own education), and some nits.

Special thanks to Tomofumi Okubo for the shepherd's detailed write-up including
the WG consensus *but it lacks* the justification of the intended status.

You may also expect a DNS directorate review as it has been requested.

I hope that this review helps to improve the document,

Regards,

-éric

## DISCUSS (blocking)

As noted in https://www.ietf.org/blog/handling-iesg-ballot-positions/, a
DISCUSS ballot is just a request to have a discussion on the following topics:

### onion-csr-01 and global Internet ACME

It is easy to clear this DISCUSS by replying to the next paragraph.

May the onion-csr-01 challenge be used over the plain global Internet ? As it
allows for wildcard certificates and plain ACME does not, it would seem
necessary to specify whether it is supported or forbidden.


----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------


## COMMENTS (non-blocking)

### Section 1

s/These use the ".onion"/These services use the ".onion"/ (I had to re-read the
whole sentence 3 times to understand it)

### Sections 3.1.2 and 3.1.3

As 3.1.1 uses 'MUST NOT', suggest to s/can be used/MAY be used/

### Section 3.2

What is the basis for selecting 30 days? I would assume that the ACME
challenge/response is done within minutes if not seconds. Or is this
challenge/response assumed to be executed multiple times ?

Only supporting Ed25519 seems to lack agility or am I missing something ?

It is also unclear to me whether authKey is the client public key (probably) or
the server public key. Please add clarifying text. Some explanations could be
given on when to use this field.

### Section 4

Is authKey the same field as in section 3.2 ? This would explain this field
role but is confusing to the reader. Suggest adding something like "this field
is specified in section 4' when introducing this field in section 3.2.

### Section 7.1

To avoid any ambiguity, please add a reference to the registry by its URI
https://www.iana.org/assignments/acme/acme.xhtml#acme-validation-methods

The legend of table 1 should probably use singular and not plural.

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