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--></style></head><body lang=en-SE link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=SV>All,<o:p></o:p></span></p><p class=MsoNormal><span lang=SV><o:p> </o:p></span></p><p class=MsoNormal><span lang=SV>CSBR section 7.1.6.3 states:<o:p></o:p></span></p><p><span lang=EN-US>”</span>A Certificate issued to a Subordinate CA that issues Code Signing Certificates and is an Affiliate of the Issuing CA:<o:p></o:p></p><ol start=1 type=1><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo1'>MUST include the CA/Browser Forum reserved identifier specified in <a href="https://github.com/cabforum/code-signing/blob/main/docs/CSBR.md#7161-reserved-certificate-policy-identifiers">Section 7.1.6.1</a> to indicate the Subordinate CA's compliance with these Requirements, and<o:p></o:p></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l1 level1 lfo1'>MAY contain the "anyPolicy" identifier (<code><span style='font-size:10.0pt'>2.5.29.32.0</span></code>) in place of an explicit policy identifier.<o:p></o:p></li></ol><p>A Certificate issued after 31 March 2022 to a Subordinate CA that issues Timestamp Certificates and is an Affiliate of the Issuing CA:<o:p></o:p></p><ol start=1 type=1><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2'>MUST include the CA/Browser Forum reserved identifier specified in <a href="https://github.com/cabforum/code-signing/blob/main/docs/CSBR.md#7161-reserved-certificate-policy-identifiers">Section 7.1.6.1</a> to indicate the Subordinate CA’s compliance with these Requirements, and<o:p></o:p></li><li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2'>MAY contain the “anyPolicy” identifier (<code><span style='font-size:10.0pt'>2.5.29.32.0</span></code>) in place of an explicit policy identifier.<span lang=EN-US>”</span><o:p></o:p></li></ol><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I find there’s a few issues with this:<o:p></o:p></span></p><ul type=disc><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l2 level1 lfo3'><span lang=EN-US>“</span>MUST include the CA/Browser Forum reserved identifier specified in <a href="https://github.com/cabforum/code-signing/blob/main/docs/CSBR.md#7161-reserved-certificate-policy-identifiers">Section 7.1.6.1</a><span lang=EN-US>”, seems to state there’s only one policy OID to use, while in fact there are 3 in the named section, 2 which are for code signing certificates. This is a minor issue though and could be fixed in a cleanup ballot.<o:p></o:p></span></li><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l2 level1 lfo3'><span lang=EN-US>More concerning I find the MUST and MAY language. If we take the language related to CA Certificates for Code Signing Certificates, what does this language actually state? Should this be interpreted as:<o:p></o:p></span></li><ul type=circle><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l2 level2 lfo3'><span lang=EN-US>MUST include a CABF OID and MAY additionally contain the “anyPolicy” OID.<br>or does it state:<o:p></o:p></span></li><li class=MsoListParagraph style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:0cm;mso-list:l2 level2 lfo3'><span lang=EN-US>MUST include either a CABF OID or the “anyPolicy” OID?<o:p></o:p></span></li></ul></ul><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I would like to think the intent here is to allow CA Certificates with just the “anyPolicy” OID, but at the same time, a MAY overriding a MUST, seems counterproductive.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Any thoughts on this?<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Regards,<br><br>Martijn<o:p></o:p></span></p></div></body></html>