![Digi-CA™ the complete Certificate Authority [CA] system](/files/imagefield_thumbs/digi-ca-server_0.png)
The following services are available on all versions of Digi-CA™.
When purchasing your Digi-CA™system, the initial order will contain a fixed number of digital certificates/signatures. In the case of Digi-CA™Service, the entire annual cost is based on the number of certificates in use. With Digi-CA™Server, the system is supplied, as standard, with 100 multi-use certificates.
Therefore, additional certificates must be ordered on an, as needed basis. Additional single use (e.g. for encryption only) or multi-use (e.g. authentication and digital signature, etc.) certificates must be ordered separately.