Voir aussi :

• Infrastructure de Gestion de Clefs
• Mod_SSL

• http://huddledmasses.org/code-signing-with-openssl-and-powershell/
• http://www.top20toolbar.com/misc/codesigncert.htm

• http://isc.sans.edu/diary.html?storyid=8686

 openssl s_client -connect isc.sans.org:443

On this page you'll find how to create only one file which contains your certificate and others chain certificates (Concatenate them in one), like, I think, you could have only one configuration directive to use : the CertificateFile, and to not need the CertificateChainFile anymore :

http://help.globalscape.com/help/eft5/admin/certificate_chaining.htm