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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Posting on behalf of AT&T:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:blue">AT&T typically looks to NIST for guidance and reference on industry standards, see page 45 of the attached (NIST SP800-57-Pt1R4) document.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial",sans-serif;color:blue">---------<o:p></o:p></span></p>
<h1><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#1F497D"><o:p> </o:p></span></h1>
<h1><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></h1>
<h1><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></h1>
<h1><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></h1>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Dean Coclin</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;background:white"> </span></span><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="mailto:public%40cabforum.org?Subject=Re%3A%20%5Bcabfpub%5D%20Draft%20Ballot%20185%20-%20Limiting%20the%20Lifetime%20of%0A%20Certificates&In-Reply-To=%3CBY2PR16MB015203FBA15FB55DA256386CFA4E0%40BY2PR16MB0152.namprd16.prod.outlook.com%3E" title="[cabfpub] Draft Ballot 185 - Limiting the Lifetime of Certificates"><span style="color:windowtext">Dean_Coclin
at symantec.com</span><span class="apple-converted-space"><span style="color:windowtext;text-decoration:none"> </span></span></a><br>
<i>Sat Feb 4 13:00:29 MST 2017</i><o:p></o:p></span></p>
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<pre style="white-space:pre-wrap;font-variant-ligatures: normal;font-variant-caps: normal;orphans: 2;text-align:start;widows: 2;-webkit-text-stroke-width: 0px;word-spacing:0px"><span style="font-family:"Arial",sans-serif">For those following from outside the forum and without posting privileges, if you would like to comment, you are welcome to email: <a href="https://clicktime.symantec.com/a/1/NkLWdTxeHuw-WuW0Ah513fni4GFNcJf0Ud_KJnR3W4w=?d=d6q0Ni4stW6ebWACollarpYIDu3WWlrrlhTUlHdRHURGimObMFRVawImNsfYY6e1rJjNRgsys1-e06Va5clVemNXwqnUA0fqANVx-hw1yYOOGLMiqSMP9A6fKu3uNDi2pAuF0W_T2kMAI4RPEcrDZBnIzZ6U1L7AX8NdvIR1_OMqSs-31S4er26x8uCt-IcrqAin8p-jCePb6VmVMqeiKWzHdlPM0zcId5D4ZzL5IT4P5yLH1A9fpM21tNqaqfUtM99raRIldNt3sNw7MQqE0Hxg1Mr61SPYDk9MFRtnwOhe1abzjKRqL6jXMTBIsmA375hVxh1tCjL4FNOeyyj-F0SFefBxO0tqkZAWGmPofhypXmJg-ATRKi3KXUrArPP9VPvB4i5N-TjX4DOsATF2BAEk3onqvede06_4eeYS5zdgoD_TmdeZ4g%3D%3D&u=https%3A%2F%2Fcabforum.org%2Fmailman%2Flistinfo%2Fpublic"><span style="color:windowtext">questions at cabforum.org</span></a><mailto:<a href="https://clicktime.symantec.com/a/1/NkLWdTxeHuw-WuW0Ah513fni4GFNcJf0Ud_KJnR3W4w=?d=d6q0Ni4stW6ebWACollarpYIDu3WWlrrlhTUlHdRHURGimObMFRVawImNsfYY6e1rJjNRgsys1-e06Va5clVemNXwqnUA0fqANVx-hw1yYOOGLMiqSMP9A6fKu3uNDi2pAuF0W_T2kMAI4RPEcrDZBnIzZ6U1L7AX8NdvIR1_OMqSs-31S4er26x8uCt-IcrqAin8p-jCePb6VmVMqeiKWzHdlPM0zcId5D4ZzL5IT4P5yLH1A9fpM21tNqaqfUtM99raRIldNt3sNw7MQqE0Hxg1Mr61SPYDk9MFRtnwOhe1abzjKRqL6jXMTBIsmA375hVxh1tCjL4FNOeyyj-F0SFefBxO0tqkZAWGmPofhypXmJg-ATRKi3KXUrArPP9VPvB4i5N-TjX4DOsATF2BAEk3onqvede06_4eeYS5zdgoD_TmdeZ4g%3D%3D&u=https%3A%2F%2Fcabforum.org%2Fmailman%2Flistinfo%2Fpublic"><span style="color:windowtext">questions at cabforum.org</span></a>> and someone will re-post add it to the public list discussion.<o:p></o:p></span></pre>
<pre><span style="font-family:"Arial",sans-serif"><o:p> </o:p></span></pre>
<pre><span style="font-family:"Arial",sans-serif">Thanks<o:p></o:p></span></pre>
<pre><span style="font-family:"Arial",sans-serif">Dean<o:p></o:p></span></pre>
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