I am an assigned INT directorate reviewer for . These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see https://datatracker.ietf.org/group/intdir/about/ < https://datatracker.ietf.org/group/intdir/about/>. Based on my review, if I was on the IESG I would ballot this document as NO OBJECTION. This document is generally in quite good shape. It specifies a certificate extension for including logotypes in public key certificates and attribute certificates. As such, usual INT Area considerations play very little part in the draft. The following are minor issues (typos, misspelling, minor text improvements) with the document: Section 9, Page 21: In the paragraph on has algorithm collisions, consider "vulnerable to collision attacks." -> "vulnerable to collision attacks such as MD5 [RFC6151]." Nits: Section 3, Page 7: "between of" -> "of between" Section 3. Page 8: "more than one of the audio object" -> "more than one of the audio objects" Section 7, Page 18: - I think ".ext" as the column header for extension is a bit obscure. How about ".ext" -> "Extension"? - It seems odd to require support for .svgz but not .svg since you obviously have to support .svg internally if you support .svgz. Section 10, Page 23: "hide the name resolution" -> "hides the name resolution" Stylistic: Section 1.1, Page 4: "the user in conscious contact with the result of a certificate-based identification process," -> "to the user's attention a certificate-based identification," Section 4.1, Pages 11&12: There are three flavors of logotype defined and for each of them the same statement occurs that it "MAY be present in an end entity certificate, a CA certificate, or an attribute certificate." I would factor that out of the three sub paragraphs and change the lead in line from "Logotype types defined in this specification are:" to something like "Three Logotypes are specified in this section below. Each of them "MAY be present in an end entity certificate, a CA certificate, or an attribute certificate." Thanks, Donald =============================== Donald E. Eastlake 3rd +1-508-333-2270 (cell) 2386 Panoramic Circle, Apopka, FL 32703 USA d3e3e3@gmail.com