[IPP] RFC: Add "printer-serial-number (text(255))" to NODRIVER

[IPP] RFC: Add "printer-serial-number (text(255))" to NODRIVER

Michael Sweet msweet at msweet.org
Tue Dec 1 17:05:23 UTC 2020


Ira,

I don't see any mention of SERIALNUMBER or SN in 5107.2 - I thought that just standardized the COMMAND SET or CMD values in the device ID?!?


> On Dec 1, 2020, at 11:44 AM, Ira McDonald <blueroofmusic at gmail.com> wrote:
> 
> Hi,
> 
> Although IEEE 1284 Device ID does allow a keyword for a serial number,
> the PWG 5107.2-2010 standard ABNF does NOT allow serial number in a
> conformant Device ID string.
> 
> May be in the wild, but not something relevant for IPP interoperability.
> 
> Cheers,
> - Ira
> 
> Ira McDonald (Musician / Software Architect)
> Chair - SAE Trust Anchors and Authentication TF
> Co-Chair - TCG Trusted Mobility Solutions WG
> Co-Chair - TCG Metadata Access Protocol SG
> Chair - Linux Foundation Open Printing WG
> Secretary - IEEE-ISTO Printer Working Group
> Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
> IETF Designated Expert - IPP & Printer MIB
> Blue Roof Music / High North Inc
> http://sites.google.com/site/blueroofmusic
> http://sites.google.com/site/highnorthinc
> mailto: blueroofmusic at gmail.com
> (permanent) PO Box 221  Grand Marais, MI 49839  906-494-2434
> 
> 
> On Tue, Dec 1, 2020 at 10:30 AM Michael Sweet via ipp <ipp at pwg.org> wrote:
> Smith,
> 
> > On Dec 1, 2020, at 8:59 AM, Kennedy, Smith (Wireless & IPP Standards) <smith.kennedy at hp.com> wrote:
> >
> > Hi Mike,
> >
> > No objections to adding this but a few thoughts:
> >
> > - PII concerns?
> 
> Not directly - this identifies the printer, not an individual.  If the value was propagated outside of IPP with other personal information it might be used to identify someone ("Mike" printed to a printer with serial number 12345678, it must be Mike Sweet and not Mike Jones). But this is purely informational from the Printer to the Client, for maintenance/support purposes.
> 
> > - Overlap with the key/value pairs provided by "printer-device-id" - the "SN" key isn't standardized but is out there...
> 
> Last time I checked (but I no longer have a copy...) IEEE-1284 defines SERIALNUMBER (official abbreviation SN, also SER and SERN in the wild) to hold this.  But "printer-device-id" isn't something we want in the long term (only needed for drivers) and implementation of the serial number in the device ID is spotty at best...
> 
> ________________________
> Michael Sweet
> 
> 
> 
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________________________
Michael Sweet



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