I have a small test network that includes Win2k8 R2 machines, an Enterprise CA server and an Exchange 2010 SP1 RU1 CAS server. I would like to issue a certificate for Exchange from the CA.
As the first step, I created the certificate request, which (according to OpenSSL) contains the following info:
C:\OpenSSL\bin>openssl req -in e.req -noout -text Certificate Request: Data: Version: 0 (0x0) Subject: CN=mail.mnet.com, OU=IT, O=MNet, L=Budapest, ST=Budapest, C=HU Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public Key: (2048 bit) ...snip... Exponent: 65537 (0x10001) Attributes: 18.104.22.168.4.1.322.214.171.124 :6.1.7600.2 126.96.36.199.4.1.311.21.20 :unable to print attribute 188.8.131.52.4.1.3184.108.40.206 :unable to print attribute Requested Extensions: X509v3 Key Usage: critical Digital Signature, Key Encipherment X509v3 Subject Alternative Name: DNS:cas.int.mnet.com, DNS:mail.mnet.com, DNS:autodiscover.mnet.com, DNS:pop.int.mnet.com, DNS:imap.int.mnet.com X509v3 Basic Constraints: critical CA:FALSE X509v3 Subject Key Identifier: F0:7E:53:47:BE:04:0F:5C:78:FD:63:8C:D6:5C:BC:0D:45:A3:4F:48 Signature Algorithm: sha1WithRSAEncryption ...snip...
As the second step, I would like to submit this request to the CA, but I get the following message:
The request contains no certificate information. Denied by Policy Module 0x80094801, The request does not contain a certificate template extension of the CertificateTemplate request attribute.
What would be the best way to get this working?
How should I generate the same request from Exchange to include the info on which certificate to use?
How should I convince the CA to issue the certificate, even if the request doesn't match a certificate template?
(I'm actually interested in the answer to all three questions to learn more about both Exchange and the CA services.)