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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#467886" vlink="#96607D" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Thanks, Lars and Lukas! <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Adding the Book Editor (Jonathan Jackson) and the WG (plus Security WG chair) to distro (and including your attachment). <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I was out of office yesterday and didn’t get to join the DTN WG call. I have a conflict this coming Thursday, as well, but hope to be able to work something out. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I gave these a quick look and see nothing that I disagree with (not that that particularly matters…). The clarifications you offer are most helpful. Clearly 14 and 15 are the meaty ones – I’m inclined to support your initial alternative on 14 (remove fragmentation-related tests) for now. I have raised the issue with the IETF WG chairs, and they VERY MUCH do not want us to divert from RFC behavior (and I agree with them). It seems like the best approaches are to 1) define a security context that establishes the behaviors we want – I believe that this is permitted without violating 9172, and/or 2) assist IETF with drafting an acceptable fix to 9172 (and possibly 9171), which will, of course, require us to issue pink sheets once it comes out.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Best,<br>Bob<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-family:"Calibri",sans-serif'>From:</span></b><span style='font-family:"Calibri",sans-serif'> Lars Baumgaertner <Lars.Baumgaertner@esa.int> <br><b>Sent:</b> Friday, March 21, 2025 10:15 AM<br><b>To:</b> Robert C Durst <durst@mitre.org><br><b>Cc:</b> Lukas Holst <Lukas.Holst@ext.esa.int><br><b>Subject:</b> [EXT] BPSec Red Book Annex A - ICS RL RIDs<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='mso-line-height-alt:.75pt'><span style='font-size:1.0pt;color:white'>Hi Bob, While testing our ESA BP impl against annex A of the BPSec red book – Lukas implemented each and every one as a unit test - we found a few issues with the requirements list </span><span style='font-size:1.0pt;font-family:"Segoe UI Emoji",sans-serif;color:white'>☹</span><span style='font-size:1.0pt;color:white'> I know it’s a bit late but some of the stuff should be discussed<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-line-height-alt:.75pt'><span style='font-size:1.0pt;color:white'><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>Hi Bob,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>While testing our ESA BP impl against annex A of the BPSec red book – Lukas implemented each and every one as a unit test - we found a few issues with the requirements list </span><span lang=EN-GB style='font-family:"Segoe UI Emoji",sans-serif;mso-ligatures:standardcontextual'>☹</span><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>I know it’s a bit late but some of the stuff should be discussed (and fixed) before publishing the book.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>There are some editorial issues but also technical problems, bpsec and fragmentation the never-ending story, and duplicate tests.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>I attached the findings as a txt file with all the RIDs.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>We initially wanted to bring this up at the dtn wg meeting a few weeks ago when we discussed the other bpsec issues but the session was just too short..<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>We also have a nice spreadsheet for the ICS RL which I could share if others want to test their implementation but since the tests and their number will (have to) change, I will delay that. We are all delay-tolerant, aren’t we? </span><span lang=EN-GB style='font-family:"Segoe UI Emoji",sans-serif;mso-ligatures:standardcontextual'>😉</span><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>Have a nice weekend,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'>Lars<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual;mso-fareast-language:EN-GB'>-- <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual;mso-fareast-language:EN-GB'>Lars Baumgaertner<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual;mso-fareast-language:EN-GB'>Internal Research Fellow (OPS-GAE)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual;mso-fareast-language:EN-GB'>European Space Agency ESA/ESOC<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual;mso-fareast-language:EN-GB'>Robert-Bosch-Str. 5, D-64293 Darmstadt<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='mso-ligatures:standardcontextual'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:12.0pt'>This message is intended only for the recipient(s) named above. It may contain proprietary information and/or protected content. Any unauthorised disclosure, use, retention or dissemination is prohibited. If you have received this e-mail in error, please notify the sender immediately. ESA applies appropriate organisational measures to protect personal data, in case of data privacy queries, please contact the ESA Data Protection Officer (<a href="mailto:dpo@esa.int">dpo@esa.int</a>). <o:p></o:p></span></p></div></body></html>