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--></style></head><body lang=en-SE link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p style='margin:0cm'><span style='font-size:11.0pt;color:#212121'>All,<o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'> <o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'>We’ve recently become aware that some CAs have issued certificates containing punycode encoded domain labels compatible with IDNA2008, that are not compatible with IDNA2003.<o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'> <o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'>Our own interpretation is that IDNA2008 is currently not permitted. While the LDH, Non-Reserved LDH and XN label definitions reference RFC 5890, they only quote a very specific part of it. Meanwhile the P-Label definition directly references RFC3492 for encoding. Likewise RFC5280 which the BRs require adherence to, both reference IDNA2003 (RFC3490). (Side-note, I believe RFC9549 aims to rectify the issue with RFC5280)<o:p></o:p></span></p><p style='margin:0cm'><span style='font-size:11.0pt;color:#212121'><o:p> </o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'>As a note, ballot SC48v2 updated the language to the current definition.<o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'> <o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'>I’m looking for the opinions of this group as to their interpretations, as well as opinions if we indeed want to allow IDNA2008 and make this clear within the language.<o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'> <o:p></o:p></span></p><p style='margin:0cm;caret-color: rgb(33, 33, 33);font-variant-caps: normal;orphans: auto;text-align:start;widows: auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span style='font-size:11.0pt;color:#212121'>Regards,<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Martijn<o:p></o:p></p></div></body></html>