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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We are planning to designing an embedded device integrating ATECC508A module for PKI support. The embedded device is planned to communicate with a host device which will be ported with FIPS compliant OpenSSL library.  Our embedded device
 will be using ECDSA (FIPS 186-3)  and ECDH (FIPS SP800-56A) by calling APIs of ATECC508A SDK.  Is there any compatibility issue?  <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">      
</span></span><![endif]>Whether a digest signed using openssl library can be verified in our embedded module and vice-versa .<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">      
</span></span><![endif]>We understand that, OpenSSL doesn’t have FIPS 140-2 certification for ECDH. If we use ECDH, whether we can claim our system to be FIPS 140-2 compliant?<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Manoj<o:p></o:p></p>
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