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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">Or for completeness, just reference both the SDLS Blue and Green Books (one stop shoping for the reader).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif">howie<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Aptos",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> SIS-DTN <sis-dtn-bounces@mailman.ccsds.org> <b>
On Behalf Of </b>sburleig.sb--- via SIS-DTN<br>
<b>Sent:</b> Friday, August 1, 2025 9:44 AM<br>
<b>To:</b> Tomaso.deCola@dlr.de; keithlscott@gmail.com<br>
<b>Cc:</b> sis-dtn@mailman.ccsds.org<br>
<b>Subject:</b> [EXTERNAL] Re: [Sis-dtn] Telecon 20250731<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<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>
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<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>Tomaso de Cola via SIS-DTN<br>
<b>Sent:</b> Friday, August 1, 2025 2:50 AM<br>
<b>To:</b> <a href="mailto:keithlscott@gmail.com">keithlscott@gmail.com</a><br>
<b>Cc:</b> <a href="mailto:sis-dtn@mailman.ccsds.org">sis-dtn@mailman.ccsds.org</a><br>
<b>Subject:</b> Re: [Sis-dtn] Telecon 20250731<o:p></o:p></p>
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<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>
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<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>
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<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>
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<span style="font-size:9.0pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p>
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