[OPSAWG]Re: [IANA #1436513] expert review for draft-ietf-opsawg-prefix-lengths (smi-numbers)

[Sean Turner <[e-mail]>]

Yes. This would work great! Can I suggest the following string for the module:

id-mod-plm-2025 (TBD0)

That would make the registrations:

id-mod-plm-2025 (86) in https://www.iana.org/assignments/smi-numbers/smi-numbers.xhtml#security-smime-0

and

id-ct-prefixlenCSVwithCRLF (57) in https://www.iana.org/assignments/smi-numbers/smi-numbers.xhtml#security-smime-1

spt

> On Dec 3, 2025, at 13:19, David Dong via RT <[e-mail]> wrote:
> 
> Hi Sean,
> 
> Would this proposed update from Russ be OK if they were to implement it? This is still on the telechat agenda for tomorrow, if you would be able to let us know today.
> 
> Thank you!
> 
> Best regards,
> 
> David Dong
> IANA Services Sr. Specialist
> 
> On Wed Dec 03 17:41:54 2025, [e-mail] wrote:
>> I suggest an Appendix with this ASN.1 Module:
>> 
>> ~~~
>>   PrefixLengthsModule-2025
>>     { iso(1) member-body(2) us(840) rsadsi(113549)
>>       pkcs(1) pkcs9(9) smime(16) mod(0) TBD0 }
>> 
>> DEFINITIONS IMPLICIT TAGS ::=
>> BEGIN
>> 
>> -- EXPORTS ALL --
>> 
>> IMPORTS
>>  CONTENT-TYPE
>>  FROM CryptographicMessageSyntax-2010 -- in [RFC6268]
>>  { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
>>    pkcs-9(9) smime(16) modules(0) id-mod-cms-2009(58) } ;
>> 
>> ContentSet CONTENT-TYPE ::= { ct-prefixlenCSVwithCRLF, ... }
>> 
>> ct-prefixlenCSVwithCRLF CONTENT-TYPE ::=
>>  { TYPE OCTET STRING IDENTIFIED BY id-ct-prefixlenCSVwithCRLF }
>> 
>> id-ct-prefixlenCSVwithCRLF OBJECT IDENTIFIER ::=
>>  { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1)
>>    pkcs-9(9) smime(16) ct(1) TBD1 }
>> 
>> END
>> ~~~
>> 
>> We will also need IANA to assign an OID for the module.  This is a
>> minor update to the IANA considerations section.
>> 
>> Russ
>> 
>>> On Dec 2, 2025, at 5:09 PM, David Dong via RT <drafts-expert-review-
>>> [e-mail]> wrote:
>>> 
>>> Dear Authors/Chairs/ADs,
>>> 
>>> Please see below for feedback for the SMI Security for S/MIME CMS
>>> Content Type registration from the expert.
>>> 
>>> Best regards,
>>> 
>>> David Dong
>>> IANA Services Sr. Specialist
>>> 
>>> On Tue Dec 02 20:45:44 2025, [e-mail] wrote:
>>>> Did a quick look at this and have a questions about why there’s no
>>>> ASN.1 module that formally defines the content type? The knock on
>>>> effects for adding a module that come to mind would be:
>>>> - another section for the ASN.1 module
>>>> - another IANA request for SMIME ASN.1 Module Arc
>>>> - normative refs to X.680, X.690, & RFC 5911 (imports CONTENT-TYPE)
>>>> 
>>>> Cheers,
>>>> spt
>>>> 
>>>>> On Dec 1, 2025, at 18:50, David Dong via RT <drafts-expert-review-
>>>>> [e-mail]> wrote:
>>>>> 
>>>>> Dear Sean Turner (cc: opsawg WG),
>>>>> 
>>>>> As the backup designated expert for the SMI Security for S/MIME CMS
>>>>> Content Type registry, can you review the proposed registration in
>>>>> draft-ietf-opsawg-prefix-lengths-08 for us? Would you be able to
>>>>> review this before the IESG telechat this week?
>>>>> 
>>>>> Please note that Russ is a co-author on this document.
>>>>> 
>>>>> Please see:
>>>>> 
>>>>> https://datatracker.ietf.org/doc/draft-ietf-opsawg-prefix-lengths/
>>>>> 
>>>>> If this is OK, when the IESG approves the document for publication,
>>>>> we'll make the registration at:
>>>>> 
>>>>> https://www.iana.org/assignments/smi-numbers/
>>>>> 
>>>>> With thanks,
>>>>> 
>>>>> David Dong
>>>>> IANA Services Sr. Specialist
>>>>> 
>>>>> On Thu Nov 13 23:10:41 2025, david.dong wrote:
>>>>>> Dear Sean Turner (cc: opsawg WG),
>>>>>> 
>>>>>> As the backup designated expert for the SMI Security for S/MIME
>>>>>> CMS
>>>>>> Content Type registry, can you review the proposed registration in
>>>>>> draft-ietf-opsawg-prefix-lengths-08 for us? Please note that Russ
>>>>>> is
>>>>>> a
>>>>>> co-author on this document.
>>>>>> 
>>>>>> Please see:
>>>>>> 
>>>>>> https://datatracker.ietf.org/doc/draft-ietf-opsawg-prefix-lengths/
>>>>>> 
>>>>>> The due date is November 27th.
>>>>>> 
>>>>>> If this is OK, when the IESG approves the document for
>>>>>> publication,
>>>>>> we'll make the registration at:
>>>>>> 
>>>>>> https://www.iana.org/assignments/smi-numbers/
>>>>>> 
>>>>>> With thanks,
>>>>>> 
>>>>>> David Dong
>>>>>> IANA Services Sr. Specialist
>>>>> 
>>> 
>