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</o:shapelayout></xml><![endif]--></head><body lang=ES link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'>Forwarding it to the Sever Certificate WG<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>De:</b> Smcwg-public <smcwg-public-bounces@cabforum.org> <b>En nombre de </b>Chris Kemmerer via Smcwg-public<br><b>Enviado el:</b> jueves, 16 de marzo de 2023 15:46<br><b>Para:</b> smcwg-public@cabforum.org<br><b>Asunto:</b> [Smcwg-public] Redline for SC-59: Weak keys ballot<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div style='border:solid black 1.0pt;padding:2.0pt 2.0pt 2.0pt 2.0pt'><p class=MsoNormal style='line-height:12.0pt;background:#FAFA03'><span style='font-size:10.0pt;color:black'>CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'>Hello,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'>A diff for our proposed changes may be found here: <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fcabforum%2Fservercert%2Fcompare%2F2c63814...9ecc201%3Fdiff%3Dsplit&data=05%7C01%7Cinigo.barreira%40sectigo.com%7C9d27ee5b4bb7400b1fa908db262d2483%7C0e9c48946caa465d96604b6968b49fb7%7C0%7C0%7C638145747577702166%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=FaXtQOTrKeZMl523hWU9ts32%2B05OaGiT8S%2BdJzsczq4%3D&reserved=0">https://github.com/cabforum/servercert/compare/2c63814...9ecc201?diff=split</a><o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt;background:white'><span style='font-size:12.0pt;color:black'><br>This compares the current BR branch (2c63814) with our latest updates. Ben Wilson and Martijn Katerbarg have offered extremely useful suggestions, some of which we have accommodated and others we offer for discussion. Specifically, in 6.1.1.3:<o:p></o:p></span></p></div><div><ul type=disc><li class=elementtoproof style='color:black;mso-list:l0 level1 lfo1;background:white'><span class=contentpasted2><span style='font-size:12.0pt'>Our version removes the provision "2. There is clear evidence that the specific method used to generate the Private Key was flawed" as we believe that this case is essentially the same as the next one (i.e. "clear evidence" of a flawed method must lead to awareness of the "demonstrated or proven method")</span></span><span style='font-size:12.0pt'><o:p></o:p></span></li><li class=elementtoproof style='color:black;mso-list:l0 level1 lfo1;background:white'><span class=contentpasted2><span style='font-size:12.0pt'>The four items 4 (b) (i though iv) are inclusive (i.e all parameters combined) and are now joined by an "and"</span></span><span style='font-size:12.0pt'><o:p></o:p></span></li><li class=elementtoproof style='color:black;mso-list:l0 level1 lfo1;background:white'><span class=contentpasted2><span style='font-size:12.0pt'>As this ballot covers various weak key issues, "Debian" has been removed where not specifically required</span></span><span style='font-size:12.0pt'><o:p></o:p></span></li><li class=elementtoproof style='color:black;mso-list:l0 level1 lfo1;background:white'><span class=contentpasted2><span style='font-size:12.0pt'>The directive that "CAs MUST check for Debian weak keys for all RSA modulus lengths and exponents that they accept" was added via discussion in our SCWG calls and in our view reinforces and extends the provision in 4(b). It should be decided if there will be a cutoff point or not. If a CA wants to support 16384-bit RSA keys, do they have to generate first all Debian weak keys of that size or could it be assumed that such Debian weak keys are not expected to have been generated before?</span></span><span style='font-size:12.0pt'><o:p></o:p></span></li><li class=elementtoproof style='color:black;mso-list:l0 level1 lfo1;background:white'><span class=contentpasted2><span style='font-size:12.0pt'>We had included links to specific tools but now see that these (and more!) may be found at <a href="https://cabforum.org/resources/tools/">https://cabforum.org/resources/tools/</a> under "Check for Bad Private Keys". We have edited the section to direct to this resource.</span></span><span style='font-size:12.0pt'><o:p></o:p></span></li></ul><div><p class=MsoNormal style='background:white'><span class=contentpasted2><span style='font-size:12.0pt;color:black'>Regards,</span></span><span style='font-size:12.0pt;color:black'><br><br><span class=contentpasted2>Chris K</span><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div></div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div></div><div><p class=MsoNormal style='background:white'><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div></div></div></body></html>