Enable LDAPS

We want to enable LDAPS on our domain controllers. The third-party CA wants the request file to include the following  things

E-Mail address
Common Name
Organizational Unit
Locality (City)
State/Province
Country

Hence do these attributes need to be specified with a value in the attribute editor, as currently there is no value defined for these attributes on the domain controllers on which I want to enable LDAPS.

Also, the Hash Algorithm should be at least SHA256, so should I include the line:

HashAlgorithm = SHA256 in the inf file?