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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Thanks, Tomaso. I think referencing the green book makes sense, as this recommendation is not normative upon LTP; the LTP implementer who wants to use SDLS will be able to navigate from the green book to the blue book.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Scott<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> SIS-DTN <sis-dtn-bounces@mailman.ccsds.org> <b>On Behalf Of </b>Tomaso de Cola via SIS-DTN<br><b>Sent:</b> Friday, August 1, 2025 2:50 AM<br><b>To:</b> keithlscott@gmail.com<br><b>Cc:</b> sis-dtn@mailman.ccsds.org<br><b>Subject:</b> Re: [Sis-dtn] Telecon 20250731<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you Keith & Scott for the great work in editing the annex.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>There are still a few remaining comments in Sections 3.9 and 3.10, which however are pretty much about formatting and I can fix them myself. In particular in Section 3.9, we have the following note, where we forgot to add the reference to SDLS documents:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><i>Since this specification was published, new security mechanisms have emerged or are being developed and standardized in CCSDS for the data link layer <span style='background:yellow;mso-highlight:yellow'>(reference SDLS – informative reference?)</span> and the bundle layer (BPSec). Implementors may want to omit LTP security in favor of the newer capabilities. <o:p></o:p></i></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>My idea here would be to refer to the SDLS green book and to add it to the list of informative references:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='background:lime;mso-highlight:lime'>CCSDS 350.5-G-2 Space Data Link Security Protocol—Summary of Concept and Rationale</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please let me know if you prefer to use a different reference, e.g., the SDLS blue book.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Tomaso<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> SIS-DTN <<a href="mailto:sis-dtn-bounces@mailman.ccsds.org">sis-dtn-bounces@mailman.ccsds.org</a>> <b>On Behalf Of </b>Keith Scott via SIS-DTN<br><b>Sent:</b> Donnerstag, 31. Juli 2025 18:58<br><b>To:</b> <a href="mailto:sis-dtn@mailman.ccsds.org">sis-dtn@mailman.ccsds.org</a><br><b>Subject:</b> [Sis-dtn] Telecon 20250731<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=gmail-p1 style='margin:0in'><b><span style='font-size:13.5pt;font-family:"Helvetica",sans-serif'>LTP Corrigendum</span></b><span style='font-family:"Helvetica",sans-serif'><o:p></o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'>We took out the 'shall' language and replaced it with requests or affirmative language.<o:p></o:p></span></p><p class=gmail-p2 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;min-height:14px'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'>We removed 'node' and the sort of implicit linkage to RASDS and used an engine ID POC (EPOC instead of NPOC).<o:p></o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'>Edits attached,<o:p></o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'> --keith<o:p></o:p></span></p><p class=gmail-p1 style='margin:0in;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal'><span style='font-size:9.0pt;font-family:"Helvetica",sans-serif'><o:p> </o:p></span></p></div></div></div></body></html>