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<p class="MsoNormal"><span style="color:#1F497D">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Can anyone share information on function that does signature verification in unbound library (version 1.11.0).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Is there any way to bypass FIPS mode setting and allow signature verification for 1024 key sizes as well in FIPS mode in unbound. Or can we use any openssl flag to disable FIPS mode for unbound. Appreciate any
inputs on this.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">rafiq<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Mohammad Rafiq</span></b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Technical Lead<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN"><a href="mailto:mohrafiq@cisco.com"><span style="color:#666666;text-decoration:none">mohrafiq@cisco.com</span></a></span><span style="color:#1F497D;mso-fareast-language:EN-IN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Tel:
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Cisco Systems, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">SDB-7, Unit-IV, GF,1F-4F,ELCOT SEZ #602/3, Sholinganallur<br>
CHENNAI<br>
600 119<br>
India<br>
cisco.com</span><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D;display:none;mso-fareast-language:EN-IN"><o:p> </o:p></span></p>
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before you print.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#999999;mso-fareast-language:EN-IN">This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution
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<p class="MsoNormal" style="margin-left:36.0pt"><b><span lang="EN-US" style="mso-fareast-language:EN-IN">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-IN"> Mohammad Rafiq -X (mohrafiq - HCL TECHNOLOGIES LIMITED at Cisco)
<br>
<b>Sent:</b> 30 April 2021 21:01<br>
<b>To:</b> unbound-users@lists.nlnetlabs.nl<br>
<b>Subject:</b> Unbound 1.11.0 FIPS mode issue<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify">Hi There,<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify"> While trying to verify DANE compliance for a domain, we are facing RSA signature verification issue in FIPS mode for 1024 key sizes.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify">As per our understanding we could see in Non FIPS mode, (openssl) rsa_sign.c RSA_verify functions is taking care of signature verification and its passing.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify">In FIPS mode we see that unbound doesn’t call RSA_verify, could you help us understand if there is any other was verification takes place.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify">Below is the unbound query response for ietf.org.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt;text-align:justify"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">Answer in Non FIPS mode:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[('MX', 'ietf.org', 0, 'SECURE', 3963714400605L, (0, 'mail.ietf.org'))] ns:[] ar:[]><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[('A', 'mail.ietf.org', 0, 'SECURE', 3963714400605L, '4.31.198.44')] ns:[] ar:[]><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[] ns:[] ar:[]><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[('TLSA', '_25._tcp.mail.ietf.org', 0, 'SECURE', 3969483822987L, '0301010c72ac70b745ac19998811b131d662c9ac69dbdbe7cb23e5b514b56664c5d3d6')] ns:[] ar:[]><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">Answer in FIPS mode:<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[('MX', 'ietf.org', 0, 'BOGUS', 4274224824212L, (0, 'mail.ietf.org'))]<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><dns_reply rcode=0 q:[] an:[('A', 'mail.ietf.org', 0, 'BOGUS', 4274224824212L, '4.31.198.44')] ns:[] ar:[]><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">We appreciate any inputs on how we can verify 1024 key sizes signature verification in FIPS mode.<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">Thanks,<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt">rafiq<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:36.0pt"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-IN"><img border="0" width="602" height="78" style="width:6.2708in;height:.8125in" id="Picture_x0020_1" src="cid:image004.jpg@01D74213.3F5ED3B0" alt="logo_Grey"></span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-IN"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Mohammad Rafiq</span></b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Technical Lead<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN"><a href="mailto:mohrafiq@cisco.com"><span style="color:#666666;text-decoration:none">mohrafiq@cisco.com</span></a></span><span style="mso-fareast-language:EN-IN"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Tel:
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">Cisco Systems, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:EN-IN">SDB-7, Unit-IV, GF,1F-4F,ELCOT SEZ #602/3, Sholinganallur<br>
CHENNAI<br>
600 119<br>
India<br>
cisco.com</span><span style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#666666"><o:p></o:p></span></p>
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