<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi There,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does Twisted support or is there any way of loading intermediate CA certs from a chain file?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have a SSL certificate issued by Thawte, but my system administrator says as quoted:<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'>Looks like you may need to install an Intermediary certificate. Relevant certs for Thawte can be found at <a href="https://search.thawte.com/support/ssl-digital-certificates/index?page=content&actp=CROSSLINK&id=SO13881">https://search.thawte.com/support/ssl-digital-certificates/index?page=content&actp=CROSSLINK&id=SO13881</a><br><br><o:p></o:p></p><p class=MsoNormal>I am not sure, how to generate a chain file and later, how to use it in twisted ssl enabled server.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>At the moment, I am using following line of code:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black;background:yellow;mso-highlight:yellow'>root_ssl_service</span><span style='font-size:10.0pt;font-family:"Courier New";color:black'> = internet.SSLServer(443, site_ssl, </span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> DefaultOpenSSLContextFactory(</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> privateKeyFileName=</span><i><span style='font-size:10.0pt;font-family:"Courier New";color:#00AA00'>"<u>cert</u>/server.key"</span></i><span style='font-size:10.0pt;font-family:"Courier New";color:black'>,</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:black'> certificateFileName=</span><i><span style='font-size:10.0pt;font-family:"Courier New";color:#00AA00'>"<u>cert</u>/server.pem"</span></i><span style='font-size:10.0pt;font-family:"Courier New";color:black'>))</span><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks in advance.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sury<o:p></o:p></p></div></body></html>