[media-types] Re: [IANA #1421602] application/vnd.nu baltec.nudoku-game registration request

Hi Amanda,

On 14/08/2025 20:19, Amanda Baber via RT wrote:
> Hi Alexey,
>
> We have a response to the two comments about the "Additional Information" section:
>
> ===
>
>>> Additional information:
>>>
>>> 1. Deprecated alias names for this type: N/A
>>> 2. Magic number(s): UTF-8 character sequence "ndkg" at the start of
>>> the file.
>> Is the file format pure JSON or does it include some header? If the
>> former, I am not sure this is true.
> The payload itself is in pure JSON, but it contains as the header a
> subset of the string pattern "ndgk[\u0020-\u007E]*\n", with the
> pattern-matching string representing the protocol specification for
> interpretation of the following json data. The frst two experimental
> content versions with a slightly different data layout look like
> --------------
> ndkg
> {
> ...
> }
> --------------
>
> and
>
> --------------
> ndkg2
> {
> ...
> }
> --------------
As a side note: It might be worth noting presence of multiple slightly 
different versions in the "Interoperability Considerations".
>> 3. File extension(s): .ndg
>> It looks like this file extension is already used by one of Adobe image
>> formats. I suggest a different file extension is to be used.
> Yes, I was not really sure if this has to be in three letter format, I
> can live with .ndkg or .nudoku instead. .ndkg seems to be unused as far
> as I can see.
>
> ===
>
> Do they need to update the magic number field?
I don't think so, the explanation was sufficient for me.
> Do you have a recommendation for the file extension field?

Either of .ndkg or .nudoku would work, I don't really have a preference.

> If they agree, we'll go ahead and register this.

Sure.

Best Regards,

Alexey

>
> thanks,
> Amanda
>
> On Wed Aug 13 17:32:22 2025, [email protected] wrote:
>> Hi Amanda,
>>
>> Sorry for the delay on this one.
>>
>> I have some non blocking comments for the requestor (see below), but
>> in
>> general this is reasonable to register.
>>
>> On 20/06/2025 18:55, Amanda Baber via RT wrote:
>>> Hi Alexey,
>>>
>>> New request here. Can you review this by July 4th?
>>>
>>> thanks,
>>> Amanda
>>>
>>> =====
>>>
>>> Name: Peter Koellner
>>>
>>> Email:[email protected]
>>>
>>> Media type name: application
>>>
>>> Media subtype name: vnd.nubaltec.nudoku-game
>>>
>>> Required parameters: N/A
>>>
>>> Optional parameters: N/A
>>>
>>> Encoding considerations: binary
>>>
>>> Security considerations: This is a media type for sharing json-
>>> encoded game files for our "nudoku" games on android/ios devices
>>> between users of the application. It contains neither executable code
>>> nor private information, but just the data required to reproduce a
>>> game state. The files should be about 3-4 kB in size. Depending on
>>> the operating system, existing security vulnerabilities of the
>>> devices' json decoder and file i/o libraries may apply.
>>>
>>> Interoperability considerations: The media type contains a sudoku
>>> board, its solution and some extra information, such as the game
>>> difficulty level, as json-encoded arrays, strings, 1-digit integer
>>> numbers and booleans. It may be opened in a text editor and read, but
>>> is primarily designed to exchange game configurations between users
>>> of the nudoku app.
>>>
>>> Published specification: "RFC publication of vendor and personal
>>> media type registrations is allowed but not required."
>>>
>>> Applications which use this media: Our Android nudoku and nudoku+
>>> applications let the user play sudoku games on their device. The
>>> media type allows game setups to be shared between the users.
>>>
>>> Fragment identifier considerations: N/A
>>>
>>> Restrictions on usage: The file should only be downloaded or opened
>>> with the nudoku/nudoku+ applications where available, but can be
>>> opened with a text viewer/editor or third-party game applications
>>> that can make use of the format.
>>>
>>> Provisional registration? (standards tree only): No
>>>
>>> Additional information:
>>>
>>> 1. Deprecated alias names for this type: N/A
>>> 2. Magic number(s): UTF-8 character sequence "ndkg" at the start of
>>> the file.
>> Is the file format pure JSON or does it include some header? If the
>> former, I am not sure this is true.
>>
>>> 3. File extension(s): .ndg
>> It looks like this file extension is already used by one of Adobe
>> image
>> formats. I suggest a different file extension is to be used.
>>> 4. Macintosh file type code: N/A
>>> 5. Object Identifiers: N/A
>>>
>>> Person to contact for further information:
>>>
>>> 1. Name: Peter Koellner
>>> 2. Email:[email protected]
>>>
>>> Intended usage: COMMON
>>>
>>> Author/Change controller: Nubaltec IT Consulting, S.L.
>>> Peter Koellner
>>> [email protected]
>>> RT Version 5.0.3
>>>
>>>

_______________________________________________
media-types mailing list -- [email protected]
To unsubscribe send an email to [email protected]