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We have just been granted a wildcard SSL certificate for a sub-domain that we manage (e.g. *.service.test.com). Rather than use this certificate on all of our IIS servers, I have been asked to use this certificate to sign certificates for each of our servers. I've tried some Googling on this topic but I can't find anything. Does anyone know if this is possible and if so how to do it? We're running Windows Server 2008 with IIS 7. | |||
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Certificates contain a usage restriction. Common certificates you get from a CA only contain the usage flag for using the certificate for authentication and purposes - hence to use it with SSL/TSL. For creating sub-certificates and sign them with the one you have you need a special certificate which can be used as intermediate CA certificate. Such certificates are much more expensive than regular certificates and you have to make provide a special hardware infrastructure and do a lot of certifications before you can get it. Conclusion: I doubt that the certificate you have can be used to issue certificates. | |||
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Certificates you get from a CA can not be used to sign other certificates. | |||
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