<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hi Pedro,<div><br></div><div>All CAs in the Apple Root Program are required to complete an audit based on either WebTrust Principles and Criteria for Certification Authorities or ETSI EN 319 411-1 LCP, NCP, or NCP+ per Section 1.1.1 of the ARP Policy. For clientAuth-only CAs, these are currently the only audit criteria.</div><div><br></div><div>I appreciate the comment regarding TLS CAs; I’ll look at improving this language, but this specifically is referencing CAs capable of asserting the serverAuth EKU as clientAuth is not required for TLS. That is, the serverAuth EKU is required at a protocol level to establish a secure TLS connection, while the clientAuth EKU is only used in specific contexts, such as mTLS — which is almost always a use-case better (or perhaps more ideally) solved by Enterprise or Private PKIs.</div><div><br></div><div>Thanks!</div><div>-Clint<br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On May 17, 2024, at 2:32 AM, Pedro FUENTES <pfuentes@wisekey.com> wrote:</div><br class="Apple-interchange-newline"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">I also oversaw that…<div><br></div><div>Anyhow… @Clint, what are the audit requirements for these clientAuth CAs?</div><div>In your program you mention WTBR as a requirement for "TLS CAs”, but there’s no distinction between clientAuth or serverAuth… while both are used to secure TLS handshakes.</div><div><div><br><blockquote type="cite"><div>On 17 May 2024, at 11:22, Dimitris Zacharopoulos (HARICA) <dzacharo@harica.gr> wrote:</div><br class="Apple-interchange-newline"><div><div><br><br>On 16/5/2024 10:29 μ.μ., Clint Wilson wrote:<br><blockquote type="cite"><blockquote type="cite">AFAIK Apple and Mozilla also don't have a specific "trust bit" for Client Authentication. Only Microsoft does.<br></blockquote>FWIW, Apple does indeed have a specific trust bit for id-kp-clientAuth EKU and allows for (and ships) dedicated clientAuth Root CAs in the Apple Root Program (as outlined in 2.1.3 of the ARP Policy).<br><br></blockquote><br>Thanks for the correction Clint. I had the impression that you shipped only Apple Roots for clientAuth. My bad.<br><br>Dimitris.<br><br><br><br></div></div></blockquote></div><br><div>
<meta charset="UTF-8"><div dir="auto" style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="text-align: start; text-indent: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><font style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; line-height: normal; text-align: start; text-indent: 0px;"><b><font color="#f62400" style="font-size: 11px;"><br class="Apple-interchange-newline">WISeKey SA<br></font></b></font><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; text-align: start; text-indent: 0px;"><font style="font-size: 12px; font-weight: normal; font-style: normal;"><span style="font-size: 11px;"><b>Pedro Fuentes<br></b>CSO - Trust Services Manager</span><br><font size="1">Office: + 41 (0) 22 594 30 00<br>Mobile: + 41 (0) </font></font><span style="font-size: x-small; font-weight: normal; font-style: normal;">791 274 790</span></div><div style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; text-align: start; text-indent: 0px;"><font style="caret-color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;"><font size="1">Address: </font></font><font size="1">Avenue Louis-Casaï 58 | </font><span style="font-size: x-small;">1216 Cointrin | Switzerland</span></div><div style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; text-align: start; text-indent: 0px;"><font><font size="1" style="caret-color: rgb(0, 0, 0); font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;"><b>Stay connected with <a href="http://www.wisekey.com/"><font color="#f62400">WISeKey</font></a><br></b></font></font><span style="caret-color: rgb(0, 0, 0); color: rgb(169, 169, 169); font-size: 10px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; orphans: 2; widows: 2;"><br></span></div><div style="caret-color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-position: normal; font-variant-caps: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; font-weight: normal; line-height: normal; text-align: start; text-indent: 0px;"><div style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal;"><span style="orphans: 2; widows: 2;"><font size="1" color="#78a600"><b>THIS IS A TRUSTED MAIL</b>: This message is digitally signed with a WISeKey identity. If you get a mail from WISeKey please check the signature to avoid security risks</font></span></div><div style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal;"><span style="orphans: 2; widows: 2; font-size: 9px;"><font color="#a9a9a9"><br></font></span></div><div style="font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal;"><div style="orphans: 2; widows: 2;"><font color="#a9a9a9" style="font-size: 9px;"><b>CONFIDENTIALITY: </b>This email and any files transmitted with it can be confidential and it’s intended solely for the use of the individual or entity to which they are addressed. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. If you have received this email in error please notify the sender</font></div><div style="orphans: 2; widows: 2;"><font color="#a9a9a9" style="font-size: 9px;"><br></font></div><div style="orphans: 2; widows: 2;"><font color="#a9a9a9" style="font-size: 9px;"><b>DISCLAIMER: </b>WISeKey does not warrant the accuracy or completeness of this message and does not accept any liability for any errors or omissions herein as this message has been transmitted over a public network. Internet communications cannot be guaranteed to be secure or error-free as information may be intercepted, corrupted, or contain viruses. Attachments to this e-mail are checked for viruses; however, we do not accept any liability for any damage sustained by viruses and therefore you are kindly requested to check for viruses upon receipt.</font></div></div></div></div></div></div></div></div></div></div></div></div></div>
</div>
<br></div></div></div></blockquote></div><br></div></body></html>