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<span id="docs-internal-guid-7da79249-7fff-4305-0b44-92b7a62a9740" class="">
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-family: Arial; font-size: 11pt; white-space: pre-wrap;" class="">Dear Colleagues,</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">As Joe and Suzanne have mentioned previously, Afilias
is working on several DNSSEC operational changes to the TLDs delegated to PIR. This note enumerates the changes we are planning to make below. We certainly welcome any comments you may have which could help us improve the plan, along with any clarifying questions.</span></p>
<div class=""><font face="Arial" class=""><span style="font-size: 15px;" class="">Thanks,</span></font></div>
<div class=""><font face="Arial" class=""><span style="font-size: 15px;" class="">Suzanne & Joe</span></font></div>
<div class=""><font face="Arial" class=""><span style="font-size: 15px;" class=""><br class="">
</span></font></div>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Objective</span></h2>
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">As
has been described in various technical meetings earlier this year, our immediate goal is to remove any dependency on the SHA-1 algorithm from the DNSSEC parameters used to sign PIR’s top-level domains.</span></div>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">PIR Top-Level Domains</span></h2>
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">The
PIR top-level domains that will be included in this work are:</span></div>
<br class="">
<ul style="margin-top:0;margin-bottom:0;" class="">
<li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">ORG</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">NGO</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">ONG</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">संगठन
/ XN--I1B6B1A6A2E</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">机构
/ XN--NQV7F</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">орг
/ XN--C1AVG</span></div>
</li><li dir="ltr" style="list-style-type: disc; font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre;" class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">组织机构
/ XN--NQV7FS00EMA</span></div>
</li></ul>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Changes to each Top Level Domain DNSKEY
RRset</span></h2>
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Currently,
a DNSSEC enabled query for the DNSKEY RRset for a PIR TLD returns 3 DNSKEYs -- current KSK (2048 bits), current and next ZSKs (1024 bits) -- along with 2 RRSIGs, one by the KSK, one by the current ZSK. All of the DNSKEYs currently use algorithm 7 (RSASHA1-NSEC3-SHA1).</span></div>
<br class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Afilias
will remove the DNSKEY RRSIG generated using the ZSK, as this is superfluous.</span></div>
<br class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Most
importantly, we will be performing an algorithm roll of the DNSKEYs to algorithm 8 (RSA/SHA-256), using the methodology described in RFC 6781.</span></div>
<br class="">
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">At
this time, we do not plan to suppress the pre-publication of the incoming ZSK.</span></div>
<div style="line-height: 1.38; margin-top: 0pt; margin-bottom: 0pt;" class=""><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">We
also do not plan to increase the size of the ZSK for now, to keep response sizes smaller while we perform the algorithm roll. We plan to increase the effective ZSK key strength at a later date, e.g. by rolling in a 2048-bit RSA key or doing an algorithm roll
from algorithm 8 (RSA/SHA-256) to algorithm 13 (ECDSA P-256). We will share details of our plans once they have solidified, which we do not expect to happen before this first set of changes is complete.</span></div>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Changes to each Top Level Domain Delegation
DS RRset</span></h2>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">We will be removing all DS records in the root zone
which use algorithm 1 (SHA-1). This will reduce the DS RRSet to a single DS record. The DS record will be changed as part of the algorithm roll mentioned above.</span></p>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Changes to each Top Level Domain NSEC3PARAM</span></h2>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Afilias will be changing the salt value during the algorithm
roll, Hash Iterations: we will be changing the number of hash iterations from 1 to 100.</span></p>
<h2 dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 16pt; font-family: Arial; font-weight: 400; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Timeline</span></h2>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Below is an estimated timeline for this transition.
Later dates could be subject to change due to an unforeseen delay. We’ve tried to allow plenty of time for anomalies to appear, while keeping things moving.</span></p>
<br class="">
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">#</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Task</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Timeframe</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Dependencies</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;"></span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Notes</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">1</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Signer Adjustments</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-15</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">None</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Stop ZSK RRSIG on DNSKEYS, etc.</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Generate key material</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-15</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">None</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">SHA-256 DNSKEYs, DSs</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">3</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Re-sign w/ new ZSK</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;"></span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-15</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Allows for comments, holiday</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">4</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">RRSIG hold down period</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-15 - 2020-09-21</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">3</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">5</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Publish new DNSKEYs</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-21- 2020-09-25</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">4</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">6</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">DNSKEY add hold down</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-25 - 2020-09-28</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">5</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">7</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Prepare RZM Request</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-22 - 2020-09-24</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">8</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Send RZM Request</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-28</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">6, 7</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">9</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">RZM Processing</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-28 - 2020-10-05</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">8</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Assumes timely ACKs</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">10</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">DS change hold down period</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-09-29 - 2020-10-09</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">9</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">11</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Remove old DNSKEYs</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-10-13 - 2020-10-19</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">10</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">and also old KSK RRSIG</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">12</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">DNSKEY remove hold down</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-10-13 - 2020-10-23</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">11</span></p>
<p dir="ltr" style="line-height:1.38;margin-top:12pt;margin-bottom:12pt;" class="">
<span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">13</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">Remove old RRSIGs</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">2020-10-17 - 2020-10-25</span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class=""><span class="Apple-tab-span" style="white-space:pre;">
</span></span><span style="font-size: 11pt; font-family: Arial; font-variant-ligatures: normal; font-variant-east-asian: normal; font-variant-position: normal; vertical-align: baseline; white-space: pre-wrap;" class="">12</span></p>
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