attachment
<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Wingdings;
panose-1:5 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:"Calibri",sans-serif;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoPlainText">Hi Michael,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Just a quick note, it was pointed out to me that there appears to be a typo in some of the attribute names:<o:p></o:p></p>
<p class="MsoPlainText">(replace “<span style="color:red">format</span>” with “<b>source</b>”)<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">document-<span style="color:red">format</span>-application-name
<span style="font-family:Wingdings">à</span> should be document-<b>source</b>-application-name<o:p></o:p></p>
<p class="MsoPlainText">document-<span style="color:red">format</span>-application-version
<span style="font-family:Wingdings">à</span> should be document-<b>source</b>-application-version<o:p></o:p></p>
<p class="MsoPlainText">document-<span style="color:red">format</span>-os-name
<span style="font-family:Wingdings">à</span> should be document-<b>source</b>-os-name<o:p></o:p></p>
<p class="MsoPlainText">document-<span style="color:red">format</span>-os-version
<span style="font-family:Wingdings">à</span> should be document-<b>source</b>-os-version<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Best Regards,<o:p></o:p></p>
<p class="MsoPlainText">Cihan<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">-----Original Message-----<br>
From: ipp <ipp-bounces@pwg.org> On Behalf Of Michael Sweet via ipp<br>
Sent: Wednesday, April 17, 2019 1:16 PM<br>
To: PWG IPP Workgroup <ipp@pwg.org><br>
Subject: [IPP] Fate of "document-format-details" attribute</p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">All,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">The following represents the consensus of those attending the IPP workgroup session at the April 2019 PWG Face-to-Face meeting concerning the "document-format-details" attribute and its related attributes:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- All of the definitions of the attribute will be moved to the IPP Job Extensions v2.0 specification update in development<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- The "document-format-details" attribute will be DEPRECATED (still available for use) and will be reduced to the "collection" syntax (just a single value). This is compatible at the wire level and reflects that there are no uses for
multiple values in a single document.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- The "document-format", "document-format-version", and "document-natural-language" member attributes will be made OBSOLETE because they are redundant with the corresponding top-level attributes and could be used to bypass security/format
checks.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- The "document-format-device-id" member attribute will be made OBSOLETE because it is too short (127 octets vs. 1023 octets for "printer-device-id").<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- The "<span style="background:yellow;mso-highlight:yellow">document-format-application-name</span>" and "<span style="background:yellow;mso-highlight:yellow">document-format-application-version</span>" member attributes will be retained
for informational use with a cautionary notice about interoperability and authenticity issues and the potential for use as PII.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- The "<span style="background:yellow;mso-highlight:yellow">document-format-os-name</span>" and "<span style="background:yellow;mso-highlight:yellow">document-format-os-version</span>" member attributes will be retained for informational
use with a cautionary notice about interoperability and authenticity issues and the potential for use as PII.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- A section will be added to the security considerations concerning the authenticity and PII issues of "document-format-details" in general, with a reference to the EFF work concerning user identification.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">- An informational reference will be added to the EFF article on using User-Agent to track users:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"> <a href="https://www.eff.org/deeplinks/2010/01/tracking-by-user-agent">
<span style="color:windowtext;text-decoration:none">https://www.eff.org/deeplinks/2010/01/tracking-by-user-agent</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_________________________________________________________<o:p></o:p></p>
<p class="MsoPlainText">Michael Sweet, Senior Printing System Engineer<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">ipp mailing list<o:p></o:p></p>
<p class="MsoPlainText"><a href="mailto:ipp@pwg.org"><span style="color:windowtext;text-decoration:none">ipp@pwg.org</span></a><o:p></o:p></p>
<p class="MsoPlainText"><a href="https://www.pwg.org/mailman/listinfo/ipp"><span style="color:windowtext;text-decoration:none">https://www.pwg.org/mailman/listinfo/ipp</span></a><o:p></o:p></p>
</div>
</body>
</html>