Actually, found that they were registered here:
http://www.pwg.org/pipermail/ipp/2015/018630.html
Mike or Ira, can you update the link for the 'sha2-512_224' and 'sha3-512_224' keyword registrations in the IANA registry?
Smith
> On Aug 27, 2018, at 3:18 PM, Kennedy, Smith (Wireless & Standards Architect) <smith.kennedy at hp.com> wrote:
>> Greetings,
>> Resurrecting an old thread: although not listed below, the 'sha2-512_224' keyword was also registered.
>> Smith
>> /**
> Smith Kennedy
> Wireless & Standards Architect - IPG-PPS
> Standards - IEEE ISTO PWG / Bluetooth SIG / Wi-Fi Alliance / NFC Forum / USB-IF
> Chair, IEEE ISTO Printer Working Group
> HP Inc.
> */
>>>>> On Jun 16, 2014, at 2:56 PM, Michael Sweet <msweet at apple.com> wrote:
>>>> OK, the consensus at today's concall is that "sha" refers to SHA-1. We will register the following values for SHA2:
>>>> sha2-224
>> sha2-256
>> sha2-384
>> sha2-512
>> sha2-512_256
>>>> The latter is the 512-bit SHA-2 hash truncated to 256 bits as used in the upcoming HTTP Digest authentication update.
>>>> Once a non-draft US NIST (or other) specification is released, we will also register the following new values for SHA-3 and Shake:
>>>> sha3-224
>> sha3-256
>> sha3-384
>> sha3-512
>> sha3-512_256
>> shake-128
>> shake-256
>>>>>> The IANA registration information for the SHA-2 registrations is:
>>>> Attributes (attribute syntax)
>> Keyword Attribute Value Reference
>> ----------------------- ---------
>> job-password-encryption (type2 keyword) [PWG5100.11]
>> sha2-224
>> sha2-256
>> sha2-384
>> sha2-512
>> sha2-512_256
>>>>>> On Jun 12, 2014, at 4:52 PM, Kennedy, Smith (Wireless Architect) <smith.kennedy at hp.com> wrote:
>>>>> Greetings,
>>>>>> PWG 5100.11 (JPS2) defines the “job-password-encryption-supported” attribute. One of the keywords defined in JPS2 is ’sha’. Neither the keyword nor the description is clear as to which SHA generation is being used. Is this SHA-0 or SHA-1? Do we need to define additional keywords to bring this up-to-date?
>>>>>> Smith
>>>>>> /**
>>> Smith Kennedy
>>> ATB Wireless Architect - PPS
>>> Hewlett-Packard Co.
>>> */
>>>>>>>>>>>> _______________________________________________
>>> ipp mailing list
>>>ipp at pwg.org>>>https://www.pwg.org/mailman/listinfo/ipp>>>> _________________________________________________________
>> Michael Sweet, Senior Printing System Engineer, PWG Chair
>>>> _______________________________________________
> ipp mailing list
>ipp at pwg.org>https://www.pwg.org/mailman/listinfo/ipp
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