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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A">Without seeing your private key (I am assuming it is a private key with a PEM format…) you can use the syntax described here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A"><a href="http://stackoverflow.com/questions/5244129/use-rsa-private-key-to-generate-public-key">http://stackoverflow.com/questions/5244129/use-rsa-private-key-to-generate-public-key</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A">See the first answer where they are specifying the “in” value.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial","sans-serif";color:#323E4F">Michael Munger, dCAP, MCPS, MCNPS, MBSS<br>
High Powered Help, Inc.<br>
Microsoft Certified Professional<br>
Microsoft Certified Small Business Specialist<br>
Digium Certified Asterisk Professional<br>
</span><span style="font-family:"Arial","sans-serif";color:blue"><a href="mailto:michael@highpoweredhelp.com"><span style="color:blue">michael@highpoweredhelp.com</span></a></span><span style="font-family:"Calibri","sans-serif";color:#323E4F"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#44546A"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> tinc [mailto:tinc-bounces@tinc-vpn.org]
<b>On Behalf Of </b>Martin<br>
<b>Sent:</b> Wednesday, January 14, 2015 7:28 AM<br>
<b>To:</b> tinc@tinc-vpn.org<br>
<b>Subject:</b> Obtain public key<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there any way to obtain the public key from the private key?<o:p></o:p></p>
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<p class="MsoNormal">I know it's in host file however for the purpose of this message I need to be able to generate it on the command line.<o:p></o:p></p>
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<p class="MsoNormal">I tried<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">openssl ec < ed25519_key.priv<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I get an error <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">read EC key<o:p></o:p></p>
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<p class="MsoNormal">unable to load Key<o:p></o:p></p>
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<p class="MsoNormal">140092556813984:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:703:Expecting: ANY PRIVATE KEY<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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