Licensing

DigiCert® Software Trust Manager operates on a subscription licensing model, offering a range of units that correspond to different cryptographic activities. Understanding these units and their limits is essential for managing your accounts effectively. For updates to your license agreement, contact DigiCert Sales.

License	Description	How does it work?
Signature units	Signature units are relative to the number of hashes that are signed with a production keypair. Every hash that you sign will consume one signature unit.	`Soft limit` You can exceed the allocated signature units, but overages will be incurred.
Test signature units	Test signature units are relative to the number of hashes that are signed with a test keypair. Every hash that you sign will consume one signature unit.	`Soft limit` You can exceed the allocated signature units, but overages will be incurred.
Cryptographic units	Cryptographic units is a count of all operations performed by an account which are related to cryptographic assets excluding signatures. Cryptographic events include: Create a keypair Update a keypair Export a keypair Import keypair Create a certificate Update a certificate Import a certificate Revoke a certificate Generate a CSR	`Soft limit` You can exceed the allocated signature units, but overages will be incurred.
HSM keypair units	HSM keypair units refer to how many keypairs you create on our HSMs. We provide sufficient space for the number of public trust certificates you are licensed to create as part of your DigiCert® Software Trust Manager license. The more signature units you buy, the more public certificates and HSM keypair space you will be allocated.	`Hard limit` You cannot exceed the allocated HSM keypair units unless the license is amended through Sales.
Threat detection (GB)	Threat detection units are calculated in GB. For every GB that they scan, 1 threat detection unit will be consumed.	`Soft limit` You can exceed the allocated signature units, but overages will be incurred.

License notifications

You can personalize your email notification preferences for monitoring your production signature unit and HSM unit consumption. While the final notification occurs when you exhaust your units, you also have the option to request advance notifications as you approach your account limit.

To specify the licensing thresholds that trigger email notifications:

Sign in to DigiCert ONE.
Select the Manager menu (top right) > Software Trust.
Navigate to: Account > Notifications.
Next to License limits, select the edit icon.
Specify the thresholds you want to be notified for.
Select Update.