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<p class="MsoNormal">Hello, OpenSSL experts !<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We need your help in better understanding a below behavior -
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We are experiencing issue during the initial TLS handshake :<o:p></o:p></p>
<p class="MsoNormal">We have the customer-issued TLS certificate that we deploy on our TLS client system
<o:p></o:p></p>
<p class="MsoNormal">The certs have been generated with a CSR that was generated on customer’s FIPS compliant server
<o:p></o:p></p>
<p class="MsoNormal">The CSR was then signed by CA hosted on SMGR <o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal">During the endpoint registration with the server we have an endpoint initiated TLS handshake – during that handshake the TLS server requests the client Certificate but our TLS client responds with the Certificates Length 0 that causes the
TLS server to respond with the Handshake Failure.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The Google search gives some generic ideas on why that might be happening – something along the following lines - that could be happening in case the client’s certificate does not match the server certificate – for example, due to a signing
authority mismatch, or due to the encryption cipher type mismatch, or maybe due to some other factors.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could you please help us in better understanding this issue – what else could be wrong or missing in the Server and Client certificates ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Vladimir Bashin<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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