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<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">Dear SDLS WG member,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">The order of processing between SDLS and the COP in TC has raised questions by implementing projects. To clarify the matter and provide a complete justification,
Greg Kazz (SLP WG chairman) proposes to include an additional paragraph in the SDLS Green Book (355.0-G) (see exchange of mails hereafter). A text along the following lines is proposed to be inserted in front of Figure 3-3 on page 3-10:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">“There are several reasons for this ordering of SDLS and COP functions :</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">COP-1, being a go-back-N retransmission protocol, will eventually replay TC frames. SDLS is a function providing anti-replay protection, integrity
and confidentiality. Therefore if FOP is applied before SDLS at the sending end, and SDLS before FARM at the receiving end, SDLS at the receiving end will discard all replayed frames by COP-1, thus defeating the COP.</span><span lang="EN-US"><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">SDLS at the receiving end checks integrity of TC frames by checking the MAC. The MAC is a very powerful error detecting code (in fact much more powerful
than the BCH code). Therefore, SDLS receiving end will discard all TC frames impacted by transmission errors, if the FARM is applied after SDLS. This has two impacts :</span><span lang="EN-US">
<o:p></o:p></span>
<ul style="margin-top:0cm" type="circle">
<li class="MsoNormal" style="mso-list:l0 level2 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Accountability of transmission errors vs security related events cannot be made : all errors are detected by SDLS and therefore classified as security
events</span><span lang="EN-US"><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">COP-1 will replay those SDLS rejected frames, because the FARM will never see them. Those replayed TC frames will be later rejected as replay by
SDLS.”</span><span lang="EN-US"><o:p></o:p></span></li></ul>
</li></ul>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">SDLS GB (355.0-G-1) is due for 5-year review in 2023. Nevertheless, GB do not have the same stability requirement as Blue Book and could possibly be updated
more frequently. The proposal I would like to submit to the WG is to prepare an update of the GB this year to include this justification and any other clarifications/additions/updates that might be beneficial. Of course the proposed text is to be discussed
and tuned so that it fits properly in that section.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">Please do not hesitate to comment on that proposal so that we can initiate or not this GB update.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">Gilles Moury<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US">SDLS WG chair<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Gilles MOURY</span><span style="font-family:"Times New Roman",serif;color:#1F497D">
<br>
</span><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">CNES Toulouse</span><span style="font-family:"Times New Roman",serif;color:#1F497D">
</span><span style="font-size:11.0pt;color:#1F497D;mso-fareast-language:EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt">De :</span></b><span style="font-size:11.0pt"> Kazz, Greg J (US 312B) <greg.j.kazz@jpl.nasa.gov>
<br>
<b>Envoyé :</b> jeudi 21 janvier 2021 18:12<br>
<b>À :</b> Biggerstaff, Craig (JSC-CD42)[SGT, INC] <craig.biggerstaff@nasa.gov>; Moury Gilles <Gilles.Moury@cnes.fr>; Weiss, Howard <Howard.Weiss@parsons.com>; Gian.Paolo.Calzolari@esa.int<br>
<b>Cc :</b> Shames, Peter M (US 312B) <peter.m.shames@jpl.nasa.gov>; Sank, Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <victor.j.sank@nasa.gov>; Andres, Brent (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <brent.r.andres@nasa.gov>; Matthew
Cosby <Matt.Cosby@Goonhilly.org>; Thomas Gannett <thomas.gannett@tgannett.net><br>
<b>Objet :</b> Re: CCSDS Order of Processing: Figure 6-3 in CCSDS 232.0 and Figure 3-3 in CCSDS 350.5-G<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">That would be in 2023, 3 years from now…since security is on everybody’s plate these days, I highly recommend it get updated this year. It is a Green book, so I would hope we have more discretion
and flexibility in updating them more frequently than the blue books. I understand the rationale for not updating blue books that often.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Thanks!<br>
Greg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="color:black">From: </span></b><span lang="EN-US" style="color:black">"Biggerstaff, Craig (JSC-CD42)[SGT, INC]" <<a href="mailto:craig.biggerstaff@nasa.gov">craig.biggerstaff@nasa.gov</a>><br>
<b>Date: </b>Thursday, January 21, 2021 at 8:53 AM<br>
<b>To: </b>"Kazz, Greg J (US 312B)" <<a href="mailto:greg.j.kazz@jpl.nasa.gov">greg.j.kazz@jpl.nasa.gov</a>>, Moury Gilles <<a href="mailto:Gilles.Moury@cnes.fr">Gilles.Moury@cnes.fr</a>>, "Weiss, Howard" <<a href="mailto:Howard.Weiss@parsons.com">Howard.Weiss@parsons.com</a>><br>
<b>Cc: </b>"Shames, Peter M (US 312B)" <<a href="mailto:peter.m.shames@jpl.nasa.gov">peter.m.shames@jpl.nasa.gov</a>>, "<a href="mailto:Gian.Paolo.Calzolari@esa.int">Gian.Paolo.Calzolari@esa.int</a>" <<a href="mailto:Gian.Paolo.Calzolari@esa.int">Gian.Paolo.Calzolari@esa.int</a>>,
"Sank, Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <<a href="mailto:victor.j.sank@nasa.gov">victor.j.sank@nasa.gov</a>>, "Andres, Brent (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <<a href="mailto:brent.r.andres@nasa.gov">brent.r.andres@nasa.gov</a>>,
Matthew Cosby <<a href="mailto:Matt.Cosby@Goonhilly.org">Matt.Cosby@Goonhilly.org</a>>, Thomas Gannett <<a href="mailto:thomas.gannett@tgannett.net">thomas.gannett@tgannett.net</a>><br>
<b>Subject: </b>RE: CCSDS Order of Processing: Figure 6-3 in CCSDS 232.0 and Figure 3-3 in CCSDS 350.5-G<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">I agree with incorporating Gilles’ text. The normal opportunity to do this would be the Green Book’s 5-year review/revision cycle.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Best regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Craig</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt">From:</span></b><span lang="EN-US" style="font-size:11.0pt"> Kazz, Greg J (US 312B) <<a href="mailto:greg.j.kazz@jpl.nasa.gov">greg.j.kazz@jpl.nasa.gov</a>>
<br>
<b>Sent:</b> Wednesday, January 20, 2021 6:15 PM<br>
<b>To:</b> Moury Gilles <<a href="mailto:Gilles.Moury@cnes.fr">Gilles.Moury@cnes.fr</a>>; Biggerstaff, Craig (JSC-CD42)[SGT, INC] <<a href="mailto:craig.biggerstaff@nasa.gov">craig.biggerstaff@nasa.gov</a>>; Weiss, Howard <<a href="mailto:Howard.Weiss@parsons.com">Howard.Weiss@parsons.com</a>><br>
<b>Cc:</b> Shames, Peter M (JPL-312B)[JPL Employee] <<a href="mailto:peter.m.shames@jpl.nasa.gov">peter.m.shames@jpl.nasa.gov</a>>;
<a href="mailto:Gian.Paolo.Calzolari@esa.int">Gian.Paolo.Calzolari@esa.int</a>; Sank, Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <<a href="mailto:victor.j.sank@nasa.gov">victor.j.sank@nasa.gov</a>>; Andres, Brent (GSFC-567.0)[SCIENCE SYSTEMS
AND APPLICATIONS INC] <<a href="mailto:brent.r.andres@nasa.gov">brent.r.andres@nasa.gov</a>>; Matthew Cosby <<a href="mailto:Matt.Cosby@Goonhilly.org">Matt.Cosby@Goonhilly.org</a>>; Thomas Gannett <<a href="mailto:thomas.gannett@tgannett.net">thomas.gannett@tgannett.net</a>><br>
<b>Subject:</b> CCSDS Order of Processing: Figure 6-3 in CCSDS 232.0 and Figure 3-3 in CCSDS 350.5-G</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Gilles, Craig, and Howie,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">What Gilles provided me, Victor, and Brent (highlighted below, i.e., his bullet points) was an excellent explanation, as to why the COP has to be applied
<i>after</i> SDLS at the sending end. And because this topic seems to come up again and again at least at NASA and perhaps at other agencies as well, I strongly recommend that we take Gilles’ text below and put it into a new paragraph in front of figure 3-3
on p. 3-10 in CCSDS 350.5-G (June 2018) to augment the rationale for that figure. I believe it will be useful for user’s to understand the rationale for processing between COP and SDLS. Note that figure 3-3 is identical to figure 6-3 in CCSDS 232.0.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">What does the SDLS WG think of this recommendation ?</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Best regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Greg</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="color:black">From: </span></b><span lang="EN-US" style="color:black">Moury Gilles <<a href="mailto:Gilles.Moury@cnes.fr">Gilles.Moury@cnes.fr</a>><br>
<b>Date: </b>Tuesday, January 12, 2021 at 3:57 AM<br>
<b>To: </b>"Kazz, Greg J (US 312B)" <<a href="mailto:greg.j.kazz@jpl.nasa.gov">greg.j.kazz@jpl.nasa.gov</a>><br>
<b>Cc: </b>"Sank, Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]" <<a href="mailto:victor.j.sank@nasa.gov">victor.j.sank@nasa.gov</a>><br>
<b>Subject: </b>[EXTERNAL] RE: CCSDS Order of Processing: Figure 6-3 in CCSDS 232.0</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Dear Greg and Victor,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">All my best wishes for 2021 ! I hope we can meet in person this year !</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">There are several reasons for this ordering of SDLS and COP functions :</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;background:yellow;mso-highlight:yellow">COP-1, being a go-back-N retransmission protocol, will eventually replay TC frames. SDLS is a function providing
anti-replay protection, integrity and confidentiality. Therefore if FOP is applied before SDLS at the sending end, and SDLS before FARM at the receiving end, SDLS at the receiving end will discard all replayed frames by COP-1, thus defeating the COP.</span><span lang="EN-US"><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level1 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;background:yellow;mso-highlight:yellow">SDLS at the receiving end checks integrity of TC frames by checking the MAC. The MAC is a very powerful error
detecting code (in fact much more powerful than the BCH code). Therefore, SDLS receiving end will discard all TC frames impacted by transmission errors, if the FARM is applied after SDLS. This has two impacts :</span><span lang="EN-US">
<o:p></o:p></span>
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<li class="MsoNormal" style="mso-list:l0 level2 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;background:yellow;mso-highlight:yellow">Accountability of transmission errors vs security related events cannot be made : all errors are detected
by SDLS and therefore classified as security events</span><span lang="EN-US"><o:p></o:p></span></li><li class="MsoNormal" style="mso-list:l0 level2 lfo3"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D;background:yellow;mso-highlight:yellow">COP-1 will replay those SDLS rejected frames, because the FARM will never see them. Those replayed TC frames
will be later rejected as replay by SDLS.</span><span lang="EN-US"><o:p></o:p></span></li></ul>
</li></ul>
<p class="MsoListParagraph"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0cm"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">I hope this clarifies the matter.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0cm"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0cm"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Best regards,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0cm"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Gilles</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">Gilles MOURY</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:#1F497D">
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</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D">CNES Toulouse</span><span lang="EN-US" style="font-family:"Times New Roman",serif;color:#1F497D">
</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt">De :</span></b><span lang="EN-US" style="font-size:11.0pt"> Kazz, Greg J (US 312B) <<a href="mailto:greg.j.kazz@jpl.nasa.gov">greg.j.kazz@jpl.nasa.gov</a>>
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<b>Envoyé :</b> dimanche 10 janvier 2021 18:52<br>
<b>À :</b> Moury Gilles <<a href="mailto:Gilles.Moury@cnes.fr">Gilles.Moury@cnes.fr</a>><br>
<b>Cc :</b> Sank, Victor J. (GSFC-567.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <<a href="mailto:victor.j.sank@nasa.gov">victor.j.sank@nasa.gov</a>><br>
<b>Objet :</b> CCSDS Order of Processing: Figure 6-3 in CCSDS 232.0</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Happy New Year, Gilles !<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Victor Sank and I have a question for you, which I would like to ask you again to confirm my understanding, or correct my thinking.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Why must the FOP on the ground be done after SDLS is applied ? In other words, “why can’t the Frame Sequence Number in the Transfer Frame Primary Header, be input/applied prior to the SDSL ApplySecurity? “ <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I vaguely remember you saying something like, if the order were reversed (do FOP first, and then SDLS), there would be no way to know why a transfer frame was rejected and therefore the project would not have the accountability
it needs to take the correct action. There would be <i>no definitive</i> accountability as to
<i>why </i>a given<i> </i>transfer frames was rejected i.e., was it first rejected by SDLS because of an intentional cyber attack or was it just a non-cyber related incident detected by SDLS security (e.g., bit flips due to a regular noisy channel). By executing
the FOP-1 and the FARM-1 together as a pair, i.e., back to back as Figure 6-3 shows, you get clean accountability back from SDLS and also from the FARM (if the frame passes SDLS, then the FARM can determine if any other COP rules have been violated or not,
independent of SDLS). <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is my explanation above also your understanding ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Greg<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Greg Kazz</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Principal Engineer</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Technical Group Supervisor,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">PSSE/EEISE/PPSE (312B)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">Jet Propulsion Laboratory<img border="0" width="1366" height="892" style="width:14.2291in;height:9.2916in" id="Picture_x0020_1" src="cid:image001.png@01D6EFD5.75A04AC0"></span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">4800 Oak Grove Dr., M/S 301-490</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">Pasadena, CA 91109</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">1+(818)393 6529(voice)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt">1</span><span lang="ES-MX" style="font-size:11.0pt">+(818)393 6871(fax)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="ES-MX" style="font-size:11.0pt">email: <a href="mailto:greg.j.kazz@jpl.nasa.gov">
greg.j.kazz@jpl.nasa.gov</a> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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