CDS signature requies a CDS certificate to be used for signing. You can purchase CDS certificate from GlobalSign and probably from other certificate authorities. On the above link you will find detailed description of CDS program.
What is CDS signature? Does SecureBlackbox support it?
CDS signature is the signature with the certificate chain which ends up with a root certificate issued by Adobe. The idea is that since Adobe software knows the root certificate and always trusts it, validation process which is going on in Adobe software is to some extent simplified.